Sylvania 6sn7gt

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Pair Of Sylvania Jan Chs 6sn7gt Vt-231 Bad Boy Vacuum Tubes - 7 Matched

Pair Of Sylvania Jan Chs 6sn7gt Vt-231 Bad Boy Vacuum Tubes - 7 Matched - $200.00

Pair Of Sylvania Jan Chs 6sn7gt Vt-231 Bad Boy Vacuum Tubes - 7 Matched

Nice Pair Of 1940s Sylvania Jan Chs 6sn7gt Vt-231 Tubes. Black Plates, Bottom Getters. 1944 And 1945 Date Codes. Strong Testing And Matched To About 7% Difference. Number Jan Chs 6sn7gt Vt-231.


1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitextested

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitextested - $480.00

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitextested

Jan Chs 6sn7gt Vt-231 Sylvania. Both Tube Have 2 Hole Black Plate Identical Construction Box Code 7-44. Tested Advance Digital Tube Tester Amplitrex At1000. Tube 1 Test Results 1600 (62) 1600 (62%). Tube 2 Test Results 1700 (66%) 1600 (62%).


Quad Sylvania 6sn7gta 6sn7 6sn7gt Badboy Black 3 Hole Plates 4 Vintage Tubes Nos

Quad Sylvania 6sn7gta 6sn7 6sn7gt Badboy Black 3 Hole Plates 4 Vintage Tubes Nos - $346.50

Quad Sylvania 6sn7gta 6sn7 6sn7gt Badboy Black 3 Hole Plates 4 Vintage Tubes Nos

Quad 4 Tubes Made Early 1950's In The Usa.


Two Sylvania Vt-231 6sn7gt Wartime Black Plates 1943 Match Pair 6sn7gt

Two Sylvania Vt-231 6sn7gt Wartime Black Plates 1943 Match Pair 6sn7gt - $238.95

Two Sylvania Vt-231 6sn7gt Wartime Black Plates 1943 Match Pair 6sn7gt

Off-white Printed Logo Bases, Black, T-plates. Outstanding Sonics. Firm Bases, Excellent Silvering. Tubes Are Matched For Dynamic Gain And Structure- Test At 3500-3500 And 3500-3500 Where Passfail Is 1625 Micromho.


Pair Of 1945 Sylvania Vt-231 6sn7gt Tested On Amplitrex

Pair Of 1945 Sylvania Vt-231 6sn7gt Tested On Amplitrex - $350.00

Pair Of 1945 Sylvania Vt-231 6sn7gt Tested On Amplitrex

Pair Of Nos 1945 Sylvania Vt-231 With Green Lettering. New Tube Should Test 9ma And 2.60mav On Each Triode.these Ones Are Over 100% New Value.


1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitextested

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitextested - $480.00

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitextested

Jan Chs 6sn7gt Vt-231 Sylvania. 1mp Vt60(el34 6l6 Kt66 ) Cossor Gec U.k(special 807 Military Grade) #778486&487 (# 194037013635 ). Both Tube Have 2 Hole Black Plate Identical Construction Box Code 7-44.


Two New Sylvania 6sn7a6sn7w Military Issue Metal Base Matching Pair 6sn7gt

Two New Sylvania 6sn7a6sn7w Military Issue Metal Base Matching Pair 6sn7gt - $874.95

Two New Sylvania 6sn7a6sn7w Military Issue Metal Base Matching Pair 6sn7gt

There Are Those Who Believe These Are The Gold Standard For 6sn7's. The 6sn7a6sn7w Is Of Course The Electrical Equivalent Of The 6sn7gt. Firm Bases, Excellent Silvering. Tubes Are Matched For Dynamic Gain And Structure- Test At 3250-3125, 3187-3125 Where Passfail Is 1625 Micromho.


Sylvania Jan Chs 6sn7gt Vt-231

Sylvania Jan Chs 6sn7gt Vt-231 - $199.99

Sylvania Jan Chs 6sn7gt Vt-231



Sylvania 6sn76sn7gt Bad Boys 3 Holes Black Plate Nos Super Rare Pair

Sylvania 6sn76sn7gt Bad Boys 3 Holes Black Plate Nos Super Rare Pair - $895.00

Sylvania 6sn76sn7gt Bad Boys 3 Holes Black Plate Nos Super Rare Pair

There Are 3 Pairs Available As Shown In The Photos. Sold As Is.


Sylvania Jan 6sn7gt Vt-231 Tube 1944 Tough Dog Chromed Foil Matched Set Nib Mint

Sylvania Jan 6sn7gt Vt-231 Tube 1944 Tough Dog Chromed Foil Matched Set Nib Mint - $395.00

Sylvania Jan 6sn7gt Vt-231 Tube 1944 Tough Dog Chromed Foil Matched Set Nib Mint

Sylvania J A N C H S 6sn7gt Vt-231 Bogeys . Legendary '1944' Tough Dog. Production Year 1944. Power Tubes Are Electrically Matched So Each Tube Will Have The Similar Amount Of Idle, Plate Current And Amplification Characteristics When Used In An Amplifier!this Is Done So The Tubes Can Work Together In Your Amp Giving You Optimal Sound Quality And Tube Longevity. Matched Tubes Also Receive Extra Quality Checks To Reduce The Possibility Of Getting A Faulty Power Tube That May Have Slipped By!


Sylvania 6sn7gtvt-231 Nos Matched Pair Jan Chs

Sylvania 6sn7gtvt-231 Nos Matched Pair Jan Chs - $360.65

Sylvania 6sn7gtvt-231 Nos Matched Pair Jan Chs

Matched Pair And Matched Quads Are Available. What You See Is What You Get. Sold As Is.


Nos Nib Matched Pair Sylvania Jan Chs 6sn7gt Vt-231 Tubes Same 1945 Date

Nos Nib Matched Pair Sylvania Jan Chs 6sn7gt Vt-231 Tubes Same 1945 Date - $349.99

Nos Nib Matched Pair Sylvania Jan Chs 6sn7gt Vt-231 Tubes Same 1945 Date

These Were Tested On Our Hickok 539c With Results Of 30003000 And 31003000, Where 1640 Is The Acceptable Minimum. Do Not Buy This Item And Then Ask Us To Falsify The Forms. We Always Declare The Sales Price, As Required By Law.


6sn7gt Sylvania Matched Pair Black T Plates Tubes 6sn7

6sn7gt Sylvania Matched Pair Black T Plates Tubes 6sn7 - $249.99

6sn7gt Sylvania Matched Pair Black T Plates Tubes 6sn7

Gm2.8 Mav Gm2.7mav. These Are Very Rare Tubes.


Sylvania 6sn7gtb 6sn7gt 6sn7gta Vacuum Radio Audio Amplifier Tv Valve Tube

Sylvania 6sn7gtb 6sn7gt 6sn7gta Vacuum Radio Audio Amplifier Tv Valve Tube - $282.66

Sylvania 6sn7gtb 6sn7gt 6sn7gta Vacuum Radio Audio Amplifier Tv Valve Tube

For Sale Are 13 New Sylvania 6sn7gtbgtagt Tubes. You Will Get All 13 As Shown. The Tubes Test Good. I Do Not Know The Quality Number On The Tubes.


1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitextested

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitextested - $358.80

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitextested

Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy. 1mp Vt60(el34 6l6 Kt66 ) Cossor Gec U.k(special 807 Military Grade) #778486&487 (# 194037013635 ). Both Tube Have 2 Hole Black Plate Identical Construction Box Code 2-45.


2 New Sylvania Vt-231 6sn7gt Wartime Black Plates 1943 Match Date Pair

2 New Sylvania Vt-231 6sn7gt Wartime Black Plates 1943 Match Date Pair - $358.95

2 New Sylvania Vt-231 6sn7gt Wartime Black Plates 1943 Match Date Pair

Off-white Printed Logo Bases, Black, T-plates. Outstanding Sonics. Firm Bases, Excellent Silvering. Tubes Are Matched For Dynamic Gain And Structure- Test At 3250-3250 And 3187-3187 Where Passfail Is 1625 Micromho.


6sn7 Gt Sylvania Tall Glasstwo Holed Bad Boys Platinum Matched Quad

6sn7 Gt Sylvania Tall Glasstwo Holed Bad Boys Platinum Matched Quad - $207.47

6sn7 Gt Sylvania Tall Glasstwo Holed Bad Boys Platinum Matched Quad

Sylvania Made 6sn7 Gt,tall Glass,used,0-65% Print Visible. these Are Platinum Matched Quad Tubes(well-balanced,triode--triode & Tube--tube In Transconductance And Plate Current). Two Holed Bad Boys.


1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitextested

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitextested - $358.80

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitextested

Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate "bad Boy". 1mp Vt60(el34 6l6 Kt66 ) Cossor Gec U.k(special 807 Military Grade) #778486&487 (# 194037013635 ). Both Tube Have 2 Hole Black Plate Identical Construction Box Code 2-45.


Nos Sylvania 6sn7-gtb Chrome-top Amplitrex Museum Matched Pair Black Plate Tubes

Nos Sylvania 6sn7-gtb Chrome-top Amplitrex Museum Matched Pair Black Plate Tubes - $229.95

Nos Sylvania 6sn7-gtb Chrome-top Amplitrex Museum Matched Pair Black Plate Tubes

Amplitrex At-1000 Digitally Tested Sylvania Usa 6sn7-gt Tubes. These Rival The Rca 5692 Redbase In Sound And Black-plate Construction Quality, And Are As Scarce. Very Difficult To Find These In Perfect 3,0003,000 Tubes!


1mq Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Tested

1mq Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Tested - $718.80

1mq Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Tested

Jan Chs 6sn7gt Vt-231 Sylvania 2 Hole Plate. Both Tube Have 2 Hole Black Plate Identical Construction Box Code 2-45. The Tube Tested Is 100% Strong. Tested Advance Digital Tube Tester Amplitrex At1000.


2 X 6sn7gt Sylvania Tubes2-hole Black Plates Bad Boysuper Strong Pair2

2 X 6sn7gt Sylvania Tubes2-hole Black Plates Bad Boysuper Strong Pair2 - $199.99

2 X 6sn7gt Sylvania Tubes2-hole Black Plates Bad Boysuper Strong Pair2

2 X 6sn7gt Sylvania Tubes. Tested On Enhanced Triplet E3444 Laboratory Tester By Paul Hart Of Ga. Tubes May Also Be Operated Under The Test Conditions For Extended Periods To Be Sure That It Is Stable.


Two Sylvania 6sn7w Military Issue Short Bottle Matching Date Pair 6sn7gt

Two Sylvania 6sn7w Military Issue Short Bottle Matching Date Pair 6sn7gt - $398.95

Two Sylvania 6sn7w Military Issue Short Bottle Matching Date Pair 6sn7gt

Two, Sylvania Jan-chs-6sn7w Military Issue Tubes. Opposing, Black, T-plates, Reinforcing Rod, Short Bottle. The 6sn7a6sn7w Is Of Course The Electrical Equivalent Of The 6sn7gt. Firm Bases, Green Printed Logos, Excellent Silvering.


Sylvania Vt 231 6sn7 Gt Nos Well-balanced Gm Ip Platinum Matched Pair

Sylvania Vt 231 6sn7 Gt Nos Well-balanced Gm Ip Platinum Matched Pair - $304.74

Sylvania Vt 231 6sn7 Gt Nos Well-balanced Gm Ip Platinum Matched Pair

(twice Tested. sylvania Vt231 Has Rectangular Top Mica Without Pointers On Each Side. Pairsylvania Vt 231 ,nos. 1st)no Shorts,no Gas,both Triodes Have Well Balanced Transconductance & Plate Current(platinum Matched).


Two 2 Used Sylvania 6sn7gt Bad Boys Tv-7du Test Strong Balanced113 Base

Two 2 Used Sylvania 6sn7gt Bad Boys Tv-7du Test Strong Balanced113 Base - $199.95

Two 2 Used Sylvania 6sn7gt Bad Boys Tv-7du Test Strong Balanced113 Base

Two (2) Used Sylvania 6sn7gt bad Boys, Tv-7du Tested Strong & Balanced, "113" On Bases. 113 On Both Bases. Very Strong And Well Balanced Set. Not Much Else To Say. Tested Good On My Tv-7du At.


6sn7gt Sylvania Bad Boy Matched Pair Tubes Three 3 Holes Nos-testing

6sn7gt Sylvania Bad Boy Matched Pair Tubes Three 3 Holes Nos-testing - $250.00

6sn7gt Sylvania Bad Boy Matched Pair Tubes Three 3 Holes Nos-testing

Tube One 74 72 (sylvania & Logo Stenciled On Base With Code 313 Can Faintly See The Polygon With 6sn7gt Can Not Make Out The Glass Codes).


1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested - $358.80

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested

All Tubes Tested On Our Amplitex At1000 A Advance Tubes Tester To Preform The. Jan Chs 6sn7gt Vt-231 Sylvania. 1mp Vt60(el34 6l6 Kt66 ) Cossor Gec U.k(special 807 Military Grade) #778486&487 (# 194037013635 ).


2 X 6sn7gt Sylvania Tubes2-hole Black Plates Bad Boysuper Strong Pair

2 X 6sn7gt Sylvania Tubes2-hole Black Plates Bad Boysuper Strong Pair - $199.99

2 X 6sn7gt Sylvania Tubes2-hole Black Plates Bad Boysuper Strong Pair

2 X 6sn7gt Sylvania Tubes. Tested On Enhanced Triplet E3444 Laboratory Tester By Paul Hart Of Ga. Tubes May Also Be Operated Under The Test Conditions For Extended Periods To Be Sure That It Is Stable.


2 Sylvania Vt-231 6sn7gt Wartime Black Plates 1943 Match Pair 2 6sn7gt

2 Sylvania Vt-231 6sn7gt Wartime Black Plates 1943 Match Pair 2 6sn7gt - $198.95

2 Sylvania Vt-231 6sn7gt Wartime Black Plates 1943 Match Pair 2 6sn7gt

Off-white Printed Logo Bases, Black, T-plates. Outstanding Sonics. Firm Bases, Excellent Silvering. Tubes Are Matched For Dynamic Gain And Structure- Test At 3000-3000 And 3000-3000 Where Passfail Is 1625 Micromho.


1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested - $358.80

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested

All Tubes Tested On Our Amplitex At1000 A Advance Tubes Tester To Preform The. Jan Chs 6sn7gt Vt-231 Sylvania 2 Hole Plate Bad Boy. 1mp Vt60(el34 6l6 Kt66 ) Cossor Gec U.k(special 807 Military Grade) #778486&487 (# 194037013635 ).


Sylvania Metal Base 6sn7gt 6sn7w Matching Pair Low Noise Tubes Tests Nos

Sylvania Metal Base 6sn7gt 6sn7w Matching Pair Low Noise Tubes Tests Nos - $600.00

Sylvania Metal Base 6sn7gt 6sn7w Matching Pair Low Noise Tubes Tests Nos

Both Are Very Quiet & Lowno Microphony On My Maxi-preamp Noise Tester. Listening Tested For Excessive Noise And Microphonics In A Maxi-preamp Tester.


Sylvania 6sn76sn7gt Bad Boys 3 Holes Black Plate Nos Super Rare

Sylvania 6sn76sn7gt Bad Boys 3 Holes Black Plate Nos Super Rare - $610.65

Sylvania 6sn76sn7gt Bad Boys 3 Holes Black Plate Nos Super Rare

They Are Tightly Matched At 92-93 And 93-9550 Min Good. What You See Is What You Get. Sold As Is.


Early Nos Pair Of Sylvania Green Logo 6sn7gt Tubes - Nib - Amplitrex Tested

Early Nos Pair Of Sylvania Green Logo 6sn7gt Tubes - Nib - Amplitrex Tested - $375.00

Early Nos Pair Of Sylvania Green Logo 6sn7gt Tubes - Nib - Amplitrex Tested

See Last Picture For Test Scores.


1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested - $358.00

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested

All Tubes Tested On Our Amplitex At1000 A Advance Tubes Tester To Preform The. Jan Chs 6sn7gt Vt-231 Sylvania 2 Hole Plate "bad Boy". Both Tube Have 2 Hole Black Plate Identical Construction Box Code 2-45.


Sylvania 6sn7gt Audio Vacuum Tube Nos

Sylvania 6sn7gt Audio Vacuum Tube Nos - $214.99

Sylvania 6sn7gt Audio Vacuum Tube Nos



1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested - $358.00

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested

All Tubes Tested On Our Amplitex At1000 A Advance Tubes Tester To Preform The. Jan Chs 6sn7gt Vt-231 Sylvania. Both Tube Have 2 Hole Black Plate Identical Construction Box Code 2-45. The Tube Tested Is 100% Strong.


Nosnib Sylvania Jan Chs 6sn7gt Vt-231 Vacuum Tubes - 1944 Strong Values

Nosnib Sylvania Jan Chs 6sn7gt Vt-231 Vacuum Tubes - 1944 Strong Values - $500.00

Nosnib Sylvania Jan Chs 6sn7gt Vt-231 Vacuum Tubes - 1944 Strong Values

Sylvania Jan Chs - Vt 231 - 6sn7gt From 1944. Nos Tubes Never Used. Tubes Tested On. Strong Gm Values. Really Strong Results. Sale Final &. No Microphonic On Amplitrex Test. No Noisy &.


1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested - $358.80

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested

All Tubes Tested On Our Amplitex At1000 A Advance Tubes Tester To Preform The. Jan Chs 6sn7gt Vt-231 Sylvania 2 Hole Plate "bad Boy". 1mp Vt60(el34 6l6 Kt66 ) Cossor Gec U.k(special 807 Military Grade) #778486&487 (# 194037013635 ).


Sylvania Vt-231 1940s 2-hole Bad Boy Tubes Platinum Matched On At1000 6sn7gt

Sylvania Vt-231 1940s 2-hole Bad Boy Tubes Platinum Matched On At1000 6sn7gt - $293.93

Sylvania Vt-231 1940s 2-hole Bad Boy Tubes Platinum Matched On At1000 6sn7gt

Platinum Matched On At1000 - Tests Nos. These Black Plate Vt-231 2-hole Bad Boy Tubes Are A Rare Find. Made For The Military In The 1940's Wwii Era. Almost Impossible To Find Matched Pairs Of These.


Nos Sylvania 6sn7-gtb Chrome-top Matched Pair Blackplate Cary Slp-05 Tubes 115

Nos Sylvania 6sn7-gtb Chrome-top Matched Pair Blackplate Cary Slp-05 Tubes 115 - $229.95

Nos Sylvania 6sn7-gtb Chrome-top Matched Pair Blackplate Cary Slp-05 Tubes 115

These Rival The Rca 5692 Redbase In Sound And Black-plate Construction Quality, And Are As Scarce. Very Difficult To Find These In Perfect 3,0003,000 Tubes! Sylvania Nos 6sn7gt 6sn7 Lownoise Matched Black Plate Tubes 1940 For Cary Slp 05 (#290883848934).


Pair Sylvania Vt-231 6sn7 2 Hole Bad Boy Foil-d Getter Vacuum Tubes 21702-d

Pair Sylvania Vt-231 6sn7 2 Hole Bad Boy Foil-d Getter Vacuum Tubes 21702-d - $249.95

Pair Sylvania Vt-231 6sn7 2 Hole Bad Boy Foil-d Getter Vacuum Tubes 21702-d

Bottom Foil-d Getter. Pair Sylvania Vt-231 6sn7gt. Audio Vacuum Tubes. Radio Vacuum Tubes. 2-hole Bad Boy Style Plates . Dual Triode Tubes. Amplifier Type Tubes. Guitar Amp Tubes.


1mq Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Tested

1mq Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Tested - $718.80

1mq Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Tested

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested#764074&49. Jan Chs 6sn7gt Vt-231 Sylvania 2 Hole Plate. 1mp 6sn7gt Sylvania 3 Hole Plate Bad Boy Amplitrex Tested#230015&9. 1mq M8136 Cv4003 Ecc82 Mullard Made In Gt.britain#1297145&60&204&1244635.


Sylvania 6sn7gt Information

1mq Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Tested. 1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested#764074&49. Jan Chs 6sn7gt Vt-231 Sylvania 2 Hole Plate. 1mp 6sn7gt Sylvania 3 Hole Plate Bad Boy Amplitrex Tested#230015&9. 1mq M8136 Cv4003 Ecc82 Mullard Made In Gt.britain#1297145&60&204&1244635.

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested

All Tubes Tested On Our Amplitex At1000 A Advance Tubes Tester To Preform The. Jan Chs 6sn7gt Vt-231 Sylvania. 1mp Vt60(el34 6l6 Kt66 ) Cossor Gec U.k(special 807 Military Grade) #778486&487 (# 194037013635 ).

Sylvania 6sn7 Gt Vacuum Tube Bogey + . Industry Bogey Transconductance 26002600mhos. Industry Bogey Plate Current 9.09.0ma. Tubes May Also Be Operated Under The Test Conditions For Extended Periods To Be Sure That It Is Stable.

Sylvania 2 Hole “bad Boy” 6sn7 Gt Vacuum Hickok Tested. Sylvania 6sn7 Gt Black Plate Tube. Appears To Be A 2 Hole Sylvania Bad Boy But There Are No Graphics On Tube. Test 600625 Where 400400 Is Minimum On My Hickok 752. No Shorts, No Gas. Shipped With Usps First Class Wrapped In Bubble Then Packed In A Small Box. I'm Happy To Combine Shipping, But Be Aware That I Cannot Combine Shipping With The Global Shipping Program.keep An Eye On My Auctions - I'm Liquidating A Large Vintage Hi-fi Estate.

Two (2) Used Sylvania 6sn7gt “bad Boys”, Tv-7d/u Test Strong & Balanced,113 Base

Two (2) Used Sylvania 6sn7gt bad Boys, Tv-7du Tested Strong & Balanced, "113" On Bases. 113 On Both Bases. Very Strong And Well Balanced Set. Not Much Else To Say. Tested Good On My Tv-7du At.

Lot Of 3 6sn7gt Sylvania Tubes*flat Black Plates*tv7u Tested Strong

Lot Of 3 6sn7gt Sylvania Tubes*flat Black Plates*tv7u Tested Strongbalanced. All Tubes Tested On A Recently Professionally Calibrated Tv7u Tube Tester With The Following Results (50 Is Minimum)zenith Label Triode 1 9450triode 2 9650sylvania Triode 1 8050triode 2 8850zenithtriode 1 8459triode 2

Vintage 2 - Hole Sylvania 6sn7gt Vacuum Tube Very Strong & Tight Balance Bogey+. 2 - Hole Sylvania 6sn7gt Vacuum Tube. Industry Bogey Transconductance 26002600 Mhos. Industry Bogey Plate Current 9.09.0 Ma. . 27802720 Mhos 8.18.3 Ma.

Tested Nos Sylvania Jan Chs 6sn7gt Vt-231 Tube 1944 Ww2 Pearl Harbor Tv7 Tested

Sylvania Jan Chs 6sn7gt Vt-231 Tube. 1944 Ww2 Pearl Harbor. Tested Nos. Audio Tube Amp Amplifier. Tube's Test Result's Tv-7u Tested. Tested With A (tv-7u) For Gas, Shorts, And Mutual Conductance And Are Mostly Strong Tubes!

Sylvania Vt-231 6sn7gt Vacuum Tubes Matched And Guaranteed . For Sale I Have A Pair Of Matched Sylvania Vt-231 6sn7gt Vacuum Tubes. Tubes Carefully Tested For Transconductance, Shorts, Gas, Life And Leakage. No Tube Is Sold That Has Any Gas, Leakage Or Fails Life And Strength Tests.

50's Sylvania 6sn7gt Staggered Black Plate Tube Balanced Test 91/90 On B&k 606

This Tube Is Balanced, And Tested 9091 Using B&k 606. Tube Has "zenith" Label. There Is A Noticeable Crack In Base Of Tube, But Tube Is Not Loose And Performance Is Good.

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitextested. Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy. 1mp Vt60(el34 6l6 Kt66 ) Cossor Gec U.k(special 807 Military Grade) #778486&487 (# 194037013635 ). Both Tube Have 2 Hole Black Plate Identical Construction Box Code 2-45.

Sylvania 6sn7gt Bad Boy Plates Vacuum Tubes Tv7/u Tested. Sylvania 6sn7gt 3-hole Bad Boy Plates Vacuum Tubes Tv7u Tested. Both Tubes Tested On A Recently Professionally Calibrated Tv7u Tube Tester With The Following Results (50 Is The Minimum)bendixtriode 1 7650triode 2 5650zenithtriode 1 8050triode 2 8050

Pair, Sylvania Vt-231/6sn7gt Radio/audio Tubes, Lot Of 4

Tested And Working. Bin #23 B19.

Sylvania Jan Chs 6sn7gt Vt-231 Test Nos Us Navy 2 Hole Blk Plt Serious Tube A210

Manufacturer Sylvania For U.s. Navy. But This The Way Of The World Now. We Are Always Looking To Buy More Tubes. Large Collections, Small Collections, It Doesn't Matter. Looking Forward To Hearing From You, Dan.

2 Matched Strong Admiral Sylvania Black Plate Solid Bottom D Getter 6sn7gt Tubes

Tubes & Logos Worn As Pictured. Beautiful Sounding Tubes. Tubes Passed All Tests. Minimum Reading Is 70%, New (nos) Reading Is 100%+ & Max Reading Is 130%. We Strive To Make This Happen! This Is Very Importan.

Tested Matched Pair Sylvania Jan Chs 6sn7gt Vt-231 In White Boxes. Both Tubes Have A Hairline Crack On The Base, But The Bases Are Firm. Those Hairline Cracks Don't Affect The Performance Of The Tubes At All.

Pair Sylvania (philco Label) 6sn7gt 2-hole Bad Boy Vacuum Tubes -12% Matched #3. Pair Of Sylvania 6sn7gt "bad Boy" Tubes, Labeled For Philco, With Original Boxes. Both Feature 2-holestaple Plates And 1950 Date Codes. Tubes Are Very Clean And Test In The Range Of What I Would Expect For New Tubes, But It's Possible They've Seen A Little Use.

Radio Tubes 6sn7gt 6sn7 Sylvania Viking 3-55 Nos Matched Pair

Coded 3-55. Conditionnos, Original Boxes.tested On A B&k 747b Or Hickok 539c.

6sn7 Gt Sylvania Bad Boys Platinum Matched Pair. Platinum Matched Pair(well-balanced Triode-triode And Tube-tube In Transconductance And Plate Current). also Available In Platinum Matched Quad.

2 Strong Matched Sylvania Black Plate Solid Bottom D Getter 6sn7gt Tubes. Made In Usa - Sylvania Labeled As Shown. Tubes & Logos Worn As Pictured. Tubes Passed All Tests. Minimum Reading Is 70%, New (nos) Reading Is 100%+ & Max Reading Is 130%. We Strive To Make This Happen!

6sn7gt Wwii Sylvania Audio Tube Nos 6sn7

For Sale A 6sn7 Gt Wwii Sylvania Us Army Audio Tube.

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitextested#764057&002

Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate "bad Boy". 1mp Vt60(el34 6l6 Kt66 ) Cossor Gec U.k(special 807 Military Grade) #778486&487 (# 194037013635 ). Both Tube Have 2 Hole Black Plate Identical Construction Box Code 2-45.

2 Vintage Sylvania 6sn7 Gt Chrome Metal Strip Getter Audio Tubes "f2h" #1208 67. Crack At Base On Both (shown In Pictures). Min 15601560. Nos 26002600.

Sylvania 6sn7 Gt 2 Hole Vacuum Tube 1950 2060|2630

Industry Bogey Plate Current 9.09.0ma. I Have Many Other Types Of Tubes . Results 20602630 mhos 6.49.4ma 9.38.7ma .

Two, Sylvania 6sn7gtb, Black Plates, Chrome Dome, Match Date Pr #4, 6sn7gt

Two, Sylvania 6sn7gtb Tubes. Firm Bases, Excellent Silvering. Tubes Are Matched For Dynamic Gain And Structure- Test At 2875-2875 And 2875-2750 Where Passfail Is 1625 Micromho.

2 X 6sn7gt Sylvania Tubes*2-hole Black Plates Bad Boy*super Strong Pair*

2 X 6sn7gt Sylvania Tubes. Tested On Enhanced Triplet E3444 Laboratory Tester By Paul Hart Of Ga. Tubes May Also Be Operated Under The Test Conditions For Extended Periods To Be Sure That It Is Stable.

Pair Matched Closely 6sngt Vacuum Tube -sylvania Black Plate -fat Base- V.strong

By Sylvania. Full Warranty In Each Tube As Listed. Why Wait, Use Buy It Now And Get It For A Very Low Price. A Picture Is Worth A Thousand Words So Take A Look As That Is The Actual Item And Accessories You Will Receive.

Nos Nib 1943 Sylvania 6sn7gt Black Plate Tube 2-hole Tests Strong Balanced Wwii. Up For Sale Here Is This Nos Nib Sylvania 6sn7gt Tube, Dated 1943 And Made In Usa. This Has Black 2-hole Plates, A Bottom D Getter, And A Clear Top. Most Sn7 Tubes Test In The 40-60 Range On This Tester.

2, New, Sylvania, Vt-231, 6sn7gt, Wartime, Black Plates, 1943 Match Date Pair

Off-white Printed Logo Bases, Black, T-plates. Outstanding Sonics. Firm Bases, Excellent Silvering. Tubes Are Matched For Dynamic Gain And Structure- Test At 3250-3250 And 3187-3187 Where Passfail Is 1625 Micromho.

Ken Rad Jan Ckr Vt-231 6sn7 Gt Vacuum Tube With Fungicide Strong Balanced

Tubes May Also Be Operated Under The Test Conditions For Extended Periods To Be Sure That It Is Stable. Industry Bogey Plate Current 9.09.0ma. .

Sylvania Jan Chs 6sn7gt / Vt-231



Vintage Magnavox 6sn7gt Vacuum Tube 2 Holes

Industry Bogey Plate Current 9.09.0ma. This Tester Was Prepared By Paul Hart Of Roswell, Ga. .

Two 6sn7gt Sylvania 2 Hole Plate Vintage Tubes *certified* Reference Plus Pair. Two 6sn7gt Sylvania 2 Hole Plate Vintage Tubes Tubes Tested On A Recently Professionally Calibrated Tv7u Tube Tester With The Following Results (50 Is Minimum)tube 1 Triode 1 9350triode 2 9350tube 2triode 1 8450triode 2 8950

Nos Sylvania 6sn7gt Black Plate Vacuum Tube 1949 Date

The Last Photo Shows The Tubes As We Received Them. All Were Tested On Our Hickok 539c Tester. The Average Result Was 2900, Which Calculates To 112% Of The New Value. Do Not Buy This Item And Then Ask Us To Falsify The Forms.

Two, New, Sylvania 6sn7a/6sn7w Military Issue, Metal Base, Matching Pair, 6sn7gt. There Are Those Who Believe These Are The Gold Standard For 6sn7's. The 6sn7a6sn7w Is Of Course The Electrical Equivalent Of The 6sn7gt. Firm Bases, Excellent Silvering. Tubes Are Matched For Dynamic Gain And Structure- Test At 3250-3125, 3187-3125 Where Passfail Is 1625 Micromho.

Two, New, Motorola- Sylvania 6sn7gtb, Chrome Dome, Matching Date Pair, 6sn7gt

Firm Bases, Excellent Silvering. Tubes Are Matched For Dynamic Gain And Structure- Test At 3375-3250 And 3375-3250 Where Passfail Is 1625 Micromho. Many Other Lots Of Tubes For Sale This Week.

Pair Of Sylvania (philco Label) 6sn7gt 2-hole Bad Boy Vacuum Tubes #2

Pair Of Sylvania 6sn7gt "bad Boy" Tubes, Labeled For Philco, With Original Boxes. Both Feature 2-holestaple Plates And 1949 Date Codes. Tubes Are Very Clean And Test In The Range Of What I Would Expect For New Tubes, But It's Possible They've Seen A Little Use.

Sylvania Two Hole 6sn7gt Vacuum Tubes 87/97% And 107/126% Amplitrex

Two Sylvania 6sn7 Vacuum Tubes. Tested 8797% And 107126% Gm. 100% Represents What You Would Expect From A Nos Tube On My Amplitrex And 65% Is Considered Too Low To Use.

1944 Sylvania 6sn7gt Low Noise Tube Pair Tests Nos Vt-231. Great Pair Of Low Noise Tested Sylvania 6sn7gt, Matching 1944 Date Codes. Listening Tested For Excessive Noise And Microphonics In A Maxi-preamp Tester.

6sn7 Sylvania 6sn7gt Nos Platinum Pair #159. 6sn7 Sylvania 6sn7gt Nos Platinum Top Pair #159we Are Selling The Lifetime Collection Of An Important Audiophile Collector In Virginiaall Pieces Are In Excellent Condition Unless Notedall Pieces Have Been Internally For Authenticity And Security In Our Databaseno Returns Accepted For Bulbs That Are Outside Of Our Catalogue

Pair Of 6sn7gt Audio Vacuum Tubes. Test Good. Non-matching Rca & Sylvania.. Both Tubes Test Good. Please See Pics. You Will Receive Exactly What Is Shown. Thanks And Enjoy.

Two, Sylvania 6sn7gtb, Black Plates, Chrome Dome, Match Date Pr #3, 6sn7gt. Two, Sylvania 6sn7gtb Tubes. Firm Bases, Excellent Silvering. Tubes Are Matched For Dynamic Gain And Structure- Test At 2875-2875 And 2875-2875 Where Passfail Is 1625 Micromho.

Admiral Sylvania 6sn7 Gt Black Plates Vacuum Tube . Industry Bogey Plate Current 9.09.0 Ma. I Have Many Other Types Of Tubes. It's A Triplett 3444 Westmore 501 That Has Been Enhanced. . Results 22402200 mhos 5.66.0 Ma.

Pair Sylvania Vt-231 (6sn7) 2 Hole Bad Boy Foil-d Getter Vacuum Tubes 2.1702-d. Bottom Foil-d Getter. Pair Sylvania Vt-231 6sn7gt. Audio Vacuum Tubes. Radio Vacuum Tubes. 2-hole Bad Boy Style Plates . Dual Triode Tubes. Amplifier Type Tubes. Guitar Amp Tubes.

1951 Vintage Sylvania 6sn7gt Vacuum Tube 2 Hole Strong. Industry Bogey Plate Current 9.09.0ma. . Results 24002750mhos 6.78.7ma. Tested On Our Proprietary Tester, The E3444.

Lot Of 9 Rca Ge Sylvania 6sn7 Gt Gtb Tubes ! Pk. Make Supersized Seem Small. Get Images That.

6sn7gt Sylvania Bad Boy 2 Hole

Tube Tested 10496.

1mq Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Tested. Jan Chs 6sn7gt Vt-231 Sylvania 2 Hole Plate. Both Tube Have 2 Hole Black Plate Identical Construction Box Code 2-45. The Tube Tested Is 100% Strong. Tested Advance Digital Tube Tester Amplitrex At1000.

Sylvania 6sn7gt 3 Hole Plate Vacuum Tubes Matched And Guaranteed 1952/53 Prod.. Sylvania 6sn7gt Vacuum Tubes. For Sale I Have A Matched Pair Of As Nos Sylvania 6sn7gt Vacuum Tubes. Great Pair Of An Excellent Tube. Tubes Carefully Tested For Transconductance, Shorts, Gas, Life And Leakage.

2 Strong Matched Admiral Sylvania Black Plate Solid Bottom D Getter 6sn7gt Tubes. Tubes & Logos Worn As Pictured. Beautiful Sounding Tubes. Tubes Passed All Tests. Minimum Reading Is 70%, New (nos) Reading Is 100%+ & Max Reading Is 130%. We Strive To Make This Happen! This Is Very Importan.

6sn7gtb/6sn7gt Sylvania Nos Canada Tube Röhre Lampe Valvola Valve 진공관 真空管 电子管. This 6sn7gtb Sylvania Is New And Supplied With Original Box. La Valvola Nuova E Completa Della Sua Scatola Originale. Spedisco Questo Oggetto Dall'italia Con Raccomandata O Corriere Espresso In Base Alla Quantit.

1mp 6sn7gt Sylvania Nos Nib 3 Hole Plate Bad Boy Amplitrex Tested #230003&21

Jan 6sn7gt Kenrad Black Coated Glass Made In British Amplitrex Tested #1344008 (# 193082115035 ). 6sn7gt Sylvania. Tested On Amplitrex At1000 Advance Digital Tube Tester. 1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested#764074&49.

Two 6sn7gt Sylvania 2 Hole Plate Vintage Tubes *certified* Reference Plus Pair. These Are The 2-hole Apposed T Plate Type With The Bottom Getters. These Highly Sought-after Sylvania Tubes Are Second Only To The 3-hole Bad Boys In The Sylvania Line Up And Many Feel They Are In The Top Three To Four Of All 6sn7 Valves!

Early Nos Pair Of Sylvania (green Logo) 6sn7gt Tubes - Nib - Amplitrex Tested . See Last Picture For Test Scores.

1 Sylvania Jan-chs-6sn7gt Vt-231 Tube Bad Boys 2 Hole Black Plate

Triode 1 106 Emis 103 Gm. Triode 2 132 Emis 108 Gm.

Pair Sylvania 6sn7gt Jan 2 Hole Bad Boy Audio Vacuum Tubes Tested Usa F.1916-d. Pair Sylvania 6sn7gt. Audio Vacuum Tubes. Radio Vacuum Tubes. 2 Hole Bad Boy Style Plates . Dual Triode Tubes. Amplifier Type Tubes. Guitar Amp Tubes. Jan Military Issue - "rugged" Version Vt-231.

Radio Tubes 6sn7gtb 6sn7gt 6sn7 Sylvania White Box Nos

White Box, No Original Box.

1mp 6sn7gt Sylvania Nos Nib 3 Hole Plate Bad Boy Amplitrex Tested. Jan 6sn7gt Kenrad Black Coated Glass Made In British Amplitrex Tested #1344008 (# 193082115035 ). Nos Nib 6sn7gt Sylvania. Tested On Amplitrex At1000 Advance Digital Tube Tester. - Amplitrex At1000 Advance Digital Tube Tester.

Sylvania 6sn7gt Vt231 Military Issue Matched Pair Nos.

Jan 6sn7gt Vt-231 Raytheon Made In Usa "d" Getter Amplitrex Tested. Tested On Advance Digital Tube Tester Amplitrex At1000. We Specialized In Thoroughly Tested And Screened Quality Vacuum Tubes. We Have Various Type Of Valves And Tubes Testers Like Amplitrex At1000 Advance Digital Tube Tester, Hickok 752a Tube Tester, Avo Type 160.

Sylvania 6sn7gt Vacuum Tube Tested And Hit 100% (box2#14). Used Tube. I Used A Mighty Mike Iv Tester. Results May Vary On Your Tester.

Jan 6sn7gt Vt-231 Raytheon Made In Usa "d" Getter Amplitrex Tested# 972016

Tested On Advance Digital Tube Tester Amplitrex At1000. We Specialized In Thoroughly Tested And Screened Quality Vacuum Tubes. We Have Various Type Of Valves And Tubes Testers Like Amplitrex At1000 Advance Digital Tube Tester, Hickok 752a Tube Tester, Avo Type 160.

Strong Perfect Gm Balance 1956 Sylvania (philco) 6sn7gt Twin-triode Tube (946)

Tube Is Supplied Boxed With Test Results Provided On A Sticker Attached To The Box. This Tube Is Unusual As It Is Marked (emblem On Top) As 6sn7gt. Excellent Testing With Perfect Internal Gm Balance.

Vintage Sylvania 6sn7gt Black Plate Pre-amp Tube Tested @ Nos. Vintage Sylvania 6sn7gt Black Plate Pre-amp Tube Tested Working Well On My Brook 12a. Unknown The History Of Usage.

Sylvania 6sn7gt Tube Lamp 11,1-10,9/9ma 3,2-3,1/2,6ma/v Tsf (metrix U61b). 9ma 3,2-3,12,6mav.

Sylvania 6sn7-gt Audio Tube Bad Boy 1952 Dual Triode Tv7 Tested 92/92. Sylvania 6sn7-gt Audio Tube Bad Boy 1952 Dual Triode Tv7 Tested 9292. This Is An Early 6sn7 Audio Preamp Power Tube .gt Being The First From Approximately 1948-1952. Then There Was 6sn7-gta .followed By Gtb .there Are Some Broken Off Pieces Of Glass . Possibly Getter .now This Will Not Affect Performance .if You Are Not Familiar With These Tubes Please Do Not Buy . Again Those In The Know Will Be Aware Those Tiny Glass Pieces Do Not Affect The Performance Of The Tube .the Minimum Value Is 5050.this Tube Tests At 9292 .the Average New Tube Has A Test Result Of 7777.black Plates .two Mica Spacers . Two Hole bad Boy Tube .i Do Not Have The Original Box .180 Day Guarantee .

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitex Tested#764030&63

All Tubes Tested On Our Amplitex At1000 A Advance Tubes Tester To Preform The. Jan Chs 6sn7gt Vt-231 Sylvania 2 Hole Plate "bad Boy". 1mp Vt60(el34 6l6 Kt66 ) Cossor Gec U.k(special 807 Military Grade) #778486&487 (# 194037013635 ).

10pcs , 6sn7gt , 6sn7 , 6sn7wgta , Ecc32 , Rca - Sylvania - Tungsol. 10pcs , 6sn7gt , 6sn7 , 6sn7wgta , Ecc32 , Rca - Sylvania - Tungsol

Nos Sylvania 6sn7-gtb Chrome-top Matched Triode Black Plate Cary Slp-05 One-tube

These Rival The Rca 5692 Redbase In Sound And Black-plate Construction Quality, And Are As Scarce. Very Difficult To Find These In Perfect 3,0003,000 Single Tubes! Sylvania Nos 6sn7gt 6sn7 Lownoise Matched Black Plate Tubes 1940 For Cary Slp 05 (#290883848934).

1 Sylvania Jan-chs-6sn7gt Vt-231 Tube Bad Boys 2 Hole Black Plate . Triode 1 93 Emis 96 Gm. Triode 2 88 Emis 100 Gm.

2 X 6sn7gt Sylvania Tubes*flat Black Plates*very Strong & Balanced(6 Pair Avail). 2 X 6sn7gt Sylvania Tube. Tested On Enhanced Triplet E3444 Laboratory Tester. Tubes May Also Be Operated Under The Test Conditions For Extended Periods To Be Sure That It Is Stable. What Were Your Tubes Tested At.

6sn7gtb/6sn7gt Sylvania Nos Tube Röhre Lampe Tsf Valvola Valve 진공관 真空管 Valvula. This Sylvania 6sn7gtb Is New And Supplied With Original Box. La Valvola Nuova E Completa Della Sua Scatola Originale. Spedisco Con Raccomandata O Corriere Espresso In Base Alla Quantit. Quello Che Vedete Quello Che Riceverete.

1951 Vintage Sylvania 6sn7gt Vacuum Tube Bogey 2 Hole

Industry Bogey Transconductance 26002600mhos. Industry Bogey Plate Current 9.09.0ma. This Tester Was Prepared By Paul Hart Of Roswell, Ga. .

2 Strong Matched Sylvania Black Plate Bottom Solid D Getter 6sn7gt Tubes. Tubes & Logos Worn As Pictured. Tubes Passed All Tests. At 110106 & 102108 With A Minimum Of 70. This Is Very Important! We Strive To Make This Happen!

3 Low Testing Vintage 6sn7gt Vacuum Tubes. This Tester Was Prepared By Paul Hart Of Roswell, Ga. .

2 X 6sn7gt Sylvania Tubes*2-hole Black Plates Bad Boy*super Strong Pair*#2

2 X 6sn7gt Sylvania Tubes. Tested On Enhanced Triplet E3444 Laboratory Tester By Paul Hart Of Ga. Tubes May Also Be Operated Under The Test Conditions For Extended Periods To Be Sure That It Is Stable.

6sn7gt - Rca, Sylvania, Zenith, National Union, Delco, Emerson, Motorola

Used Tubes. All Have Been Tested On Hickok 539c. (priority If Over 15.9 Ounces). Test Results.

Very Rare Sylvania 6sn7gt Staggered Black Plate Tubes Platinum Matched On At1000. These Are Almost Impossible To Find Matched Pairs. Platinum Matched On At1000 - Tests Very Strong. Amplitrex At1000 Test Results 95%+ Gm & Em Within Nos Specs. All Tubes Are Tested With The Audiophile In Mind For Shorts, Gas, Mutual Conductance And Noise (large Tube Lots Are Not Tested For Noise).

Black Balanced 6sn7wgta Vacuum Tube - Brown Base - Vintage - At1000 Tests Nos

With The At1000 Testing 6sn7 At 250v Plate And -2v On The Grid Reveals More About The Tube Performance With Resulting Tubes That Will Last Longer And Sound Better With Accurate Matching And Balancing.

2, Sylvania, Vt-231, 6sn7gt, Wartime, Black Plates, 1943, Match Pair #2, 6sn7gt

Off-white Printed Logo Bases, Black, T-plates. Outstanding Sonics. Firm Bases, Excellent Silvering. Tubes Are Matched For Dynamic Gain And Structure- Test At 3000-3000 And 3000-3000 Where Passfail Is 1625 Micromho.

Two, Sylvania Jan-chs-6sn7gt, Military Issue, Matching Pair, 6sn7gt

Two, Sylvania Jan-chs-6sn7gt, Military Issue, Opposing Black T-plates. Firm Bases, Excellent Silvering. Tubes Are Matched For Dynamic Gain And Structure- Test At 3125-3000 And 2875-2875 Where Passfail Is 1625 Micromho.

Vintage Admiral Raytheon 6sn7gt Vacuum Tube Bogey. Industry Bogey Transconductance 26002600mhos. Industry Bogey Plate Current 9.09.0ma. This Tester Was Prepared By Paul Hart Of Roswell, Ga. .

Nos Sylvania 6sn7-gtb Chrome-top Matched Pair Blackplate Cary Slp-05 Tubes 115%. These Rival The Rca 5692 Redbase In Sound And Black-plate Construction Quality, And Are As Scarce. Very Difficult To Find These In Perfect 3,0003,000 Tubes! Sylvania Nos 6sn7gt 6sn7 Lownoise Matched Black Plate Tubes 1940 For Cary Slp 05 (#290883848934).

6sn7 Gt Sylvania Tall Glass,two Holed Bad Boys Platinum Matched Quad

Sylvania Made 6sn7 Gt,tall Glass,used,0-65% Print Visible. these Are Platinum Matched Quad Tubes(well-balanced,triode--triode & Tube--tube In Transconductance And Plate Current). Two Holed Bad Boys.

Sylvania 2 Hole “bad Boy” 6sn7 Gt Vacuum Hickok Tested Strong Balanced

Sylvania 6sn7 Gt Black Plate Tube. Appears To Be A 2 Hole Sylvania Bad Boy But There Are No Graphics On Tube. Test 700700 Where 400400 Is Minimum On My Hickok 752. No Shorts, No Gas. Shipped With Usps First Class Wrapped In Bubble Then Packed In A Small Box. I'm Happy To Combine Shipping, But Be Aware That I Cannot Combine Shipping With The Global Shipping Program.keep An Eye On My Auctions - I'm Liquidating A Large Vintage Hi-fi Estate.

2 Admiral Sylvania Rca Ge 6sn7gt Tubes Tested Vt-7. Because U Will Receive Your Item In One Piece.

1949 Vintage Pair Of Sylvania 6sn7gt Vacuum Tubes Bogey + Very Nice

Industry Bogey Transconductance 26002600mhos. Industry Bogey Plate Current 9.09.0ma. Pair Of Sylvania 6sn7 Gt Vacuum Tubes. This Includes The Use Of Cathode Bias Where Specified. This Tester Was Prepared By Paul Hart Of Roswell, Ga.

Vt 231 6sn7 Gt Sylvania Well-balanced Gm & Ip Platinum Matched Pair

(1st)no Shorts,no Gas,both Triodes Have Well Balanced Transconductance & Plate Current(platinum Matched). platinum Matched Pair (transconductance & Plate Current Tube-tube & Triode-triode).

1mp 6sn7gt Sylvania Nos Nib 3 Hole Plate Bad Boy Amplitrextested #230020&25

Nos Nib 6sn7gt Sylvania. Jan 6sn7gt Kenrad Black Coated Glass Made In British Amplitrex Tested #1344008 (# 193082115035 ). Manufactured By Sylvania & Label By General Electric. Nos Gm Specification. Tested On Amplitrex At1000 Advance Digital Tube Tester.

Vintage Sylvania 6sn7gt Test Nos 2 Hole Black T Plates . Very Good Used Condition.

Vintage Lot Of Two (2) 6sn7gt Vt-231 Nu & Sylvania Vacuum Radio Electron Tubes

Vacuum Tubes Great For Radio, Tv, Audio Restoration! 3" In Length.

6sn7gt Sylvania Matched Pair Black T Plates Tubes 6sn7

Gm2.8 Mav Gm2.7mav. These Are Very Rare Tubes.

Wwii 6sn7gt Sylvania Tube Made In Usa 6sn7

This Is Very Rare Tube.

Sylvania Jan Chs 6sn7gt Chrome Dome Black Plate Tubes 1954 Usa Tests Strong

Sylvania Jan Chs 6sn7gt Chrome Dome Black Plate Tubes 1954 Usa Tests Strong. Tested On A Sencore Mighty Mite Iv For Emission, Grid Leakage And Short Test. It Registered Good In All 3 Categories On Both Triodes. With 70 Being The Low Bench Mark For Good, It Tested At 9696. Free Shipping In The Lower 48 States. Anything Beyond Is At Buyers Expense. We Package Securely And Ship Quickly. To Ensure That You Receive Your Tubes In A Timely Fashion And Without Damage. Thanks

6sn7gt - 2 Hole Plate Bad Boy 👦 Perfectly Balanced 98/130 Fully Tested!!!. 6sn7gt - 2 Hole Plates Bad Boy Perfectly Balanced Tested On Sencore Tc-142 Mighty Mite V Strength Is 98130 No Shorts No Grid Leakage

Sylvania 6sn7gt/vt-231 2-hole Bad Boy Vacuum Tubes Platinum Matched On At1000. This Beautiful Pair Of Rare Black Plate 6sn7gt 2-hole Bad Boy Tubes Are A Rare Find. Almost Impossible To Find Matched Pairs Of These. Platinum Matched On At1000 - Tests Nos. Amplitrex At1000 Test Results 95%+ Gm & Em Within Nos Specs.

Sylvania 6sn7gt Chrome Dome Short Bottle Audio Vacuum Tube Tested Usa 2.1512-d. Sylvania 6sn7gt. Dual Triode Tube. Audio Vacuum Tube. Radio Vacuum Tube. Short Bottle . Amplifier Type Tube. Guitar Amp Tube. Clear Glass.

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitextested. Jan Chs 6sn7gt Vt-231 Sylvania. 1mp Vt60(el34 6l6 Kt66 ) Cossor Gec U.k(special 807 Military Grade) #778486&487 (# 194037013635 ). Both Tube Have 2 Hole Black Plate Identical Construction Box Code 7-44.

Sylvania 6sn7gtb Black Plate. Used In Box. Sylvania 6sn7gtb Black Plate. Used In Box. Shipped With Usps First Class.

Audiophile Quad Sylvania Chrome Top Tubes 6sn7gt +++ At1000 Silver Match ++ Foil. 3 Of The4 Have Matching Production Codes. With The At1000 Testing At 250v Plate Reveals More About The Tube Performance With Resulting Tubes That Will Last Longer And Sound Better With Accurate Matching And Balancing.

Lot Of 9pc x 6sn7gt Tung-sol,sylvania,rca,ge And Other Tubes Glass 1940s Rare

Lot Of 9pc x 6sn7gt Tung-sol,sylvania,rca,ge And Other Tubes Glass 1940s Rare.

Vintage Philco 6sn7gt Vacuum Tube

Industry Bogey Plate Current 9.09.0ma. Results Pictured. Industry Bogey Transconductance 26002600mhos.

Nos Sylvania 6sn7-gtb Chrome-top Amplitrex Museum Matched Pair Black Plate Tubes. Amplitrex At-1000 Digitally Tested Sylvania Usa 6sn7-gt Tubes. These Rival The Rca 5692 Redbase In Sound And Black-plate Construction Quality, And Are As Scarce. Very Difficult To Find These In Perfect 3,0003,000 Tubes!

Sylvania 6sn7 Gt Vacuum Tube. Tubes May Also Be Operated Under The Test Conditions For Extended Periods To Be Sure That It Is Stable. Industry Bogey Plate Current 9.09.0ma. .

Matched Pair 7n7 Tubes Sylvania (loctal Version 6sn7gt) 1960s Used? Test 94% Nos



6sn7 6sn7gt Sylvania Tube Near Nos Matched Quad Preamp Tubes Bad Boys 3 Holes X4. 4x Tubes Sylvania Bad Boys 3 Holes Black Plate. Ultra Rare To Find In Matched Quad ( 4 Pieces Four Tubes As Per Pictures). All Tubes Super Strong Full Life. Tube 1 113102 Code On Glass F1m, Code On Base 130.

Sylvania 6sn7/6sn7gt Bad Boys 3 Holes Black Plate Nos Super Rare Pair. There Are 3 Pairs Available As Shown In The Photos. Sold As Is.

Vintage Zenith Sylvania 6sn7gt Vacuum Tube

Industry Bogey Plate Current 9.09.0ma. This Tester Was Prepared By Paul Hart Of Roswell, Ga. .

Sylvania Vt-231 1940's "2-hole Bad Boy" Tubes Platinum Matched On At1000 6sn7gt. Platinum Matched On At1000 - Tests Nos. These Black Plate Vt-231 2-hole Bad Boy Tubes Are A Rare Find. Made For The Military In The 1940's Wwii Era. Almost Impossible To Find Matched Pairs Of These.

6sn7 Gt Sylvania 6sn7gt 3 Holed Bad Boys Platinum Matched Quad

(these Are Platinum Matched Quad (well-balanced,within 7% Or Less Triode-triode & Tube-tube In Transconductance And Plate Current). 2nd)tubes Are Not Usable Unless They Are Live Audio Tested With No Hum & Non-microphonic.

Pair Sylvania (philco Label) 6sn7gt 2-hole Bad Boy Vacuum Tubes - 11% Matched #1. Pair Of Sylvania 6sn7gt "bad Boy" Tubes, Labeled For Philco, With Original Boxes. Both Feature 2-holestaple Plates And 1949 Date Codes. Matched To About 11% Difference. Tubes Are Very Clean And Test In The Range Of What I Would Expect For New Tubes, But It's Possible They've Seen A Little Use.

2 Sylvania 6sn7gt Vacuum Tubes Black 3 Hole Plate 50's

Here Are 2 Very Strong Sylvania 6sn7gt Vacuum Tubes. These Tubes Both Test Excellent At 100% For Emission On Both Triodes With No Shorts Or Grid Leakage. Tested On A B&k 600 Tester. These Have The Black T Shaped Plates With 3 Holes.

(2) 6sn7gt Sylvania Chrome Domes 3 Hole Vacuum Tubes Hickok & Hifi Tested

(2) 6sn7gt Sylvania Chrome Domes 3 Hole Vacuum Tubes Hickok Tested. Great Tested Pair . These Are Tested In My Hifi And Sound Perfect. Quiet And Amazing.

1mp Jan Chs 6sn7gt Vt231 Sylvania 2 Hole Plate Bad Boy Amplitextested. Jan Chs 6sn7gt Vt-231 Sylvania. Both Tube Have 2 Hole Black Plate Identical Construction Box Code 7-44. Tested Advance Digital Tube Tester Amplitrex At1000. Tube 1 Test Results 1600 (62) 1600 (62%). Tube 2 Test Results 1700 (66%) 1600 (62%).

Sylvania 6sn7/6sn7gt Bad Boys 3 Holes Black Plate Nos Super Rare. They Are Tightly Matched At 92-93 And 93-9550 Min Good. What You See Is What You Get. Sold As Is.

1 Sylvania 6sn7 Gt 2 Hole Bad Boy Black Plate Tested Over 100%

2 Hole Black Plate Dated Code 41. Years Ago, I Put Away A Bunch Of Great Tubes. Tube Tests At 9594, Or Approx 123% 122%. Heavy Duty Long Life Military Grade Construction (green Print). The Minimum Is 50.

2- 6sn7gt Authentic Sylvania 3-hole Plate "bad Boys" Superb Reference Plus Pair

These Have The Most Superb Quality Detail Of All Sylvania 6sn7's And Produce Details That Others Just Cannot. Excellent For All Audio Reproduction Applications. These Tubes Are Ultimate Strong Testing Far Exceeding Manufacturers New Tube Values.

6sn7 Gt Sylvania Short Bottle Bad Boys Tv7/u Tested Strong And Balanced

Tested On A Calibrated Tv7u Tube Tester With The Following Results (50 Is Minimum)triode 1 8050triode 2 8450

Tested Matched Pair Sylvania Jan Chs 6sn7gt Vt-231 In White Boxes

No Hairline Cracks On The Bases.

Audiophile Pair Sylvania Bad Boy Tubes 6sn7gt +++ At1000 Gold+ Match. With The At1000 Testing 12au7 At 250v Plate And -2v On The Grid Reveals More About The Tube Performance With Resulting Tubes That Will Last Longer And Sound Better With Accurate Matching And Balancing.

2 Vintage Sylvania 6sn7gt Vacuum Tubes Black Plates.

Sylvania Jan Chs 6sn7gt Vt-231 Black Plate Mil-spec Usa Strong Microphonic. Jan Chs 6sn7gt. Tube Base A Hairline Crack, Which Does Not Affect Tube Performance. Black Plate. Mil-spec Tube. Verified By Lightly Tapping On The Chassis And Tube. Made In Usa. When Left Alone Or Playing Music In My System.

Sylvania 6sn7gt Audio Vacuum Tube ~ Nos



A Us Sylvania 6sn7 Gt 6n8p 5692 Cv181 Tube In Original Box. D Getter Rib Plate

6sn7 Can Replace 6n8p 5692 Cv181. A Us Sylvania 6sn7 Gt Tube In Original Box. (6sn7 In Vt-7 The Mini-mum Value Is 5050). Copper Pillar. I Will Test Them On Vt-7 And Match Them. Give You A Reasonable Solution.

Very Rare Sylvania 6sn7gt Staggered Black Plate Tubes Platinum Matched On At1000

These Are Almost Impossible To Find Matched Pairs. Platinum Matched On At1000 - Tests Nos. Amplitrex At1000 Test Results 95%+ Gm & Em Within Nos Specs. All Tubes Are Tested With The Audiophile In Mind For Shorts, Gas, Mutual Conductance And Noise (large Tube Lots Are Not Tested For Noise).

Two, Sylvania 6sn7gtb, Black Plates, Chrome Dome, Match Date Pr #6, 6sn7gt. Two, Sylvania 6sn7gtb Tubes. Firm Bases, Excellent Silvering. Tubes Are Matched For Dynamic Gain And Structure- Test At 3125-3125 And 3125-3000 Where Passfail Is 1625 Micromho.

Vintage Pair Of Rca 6sntgt Audio Tubes, Tests At 138% Super Strong Tubes!!!. These Tubes Tested At 118 110 & 120 & 120 Each Representing Average Of 140% Of A New Tubes Value. Large Support Rods And Side Halo Getters These Are Premium Sounding Tubes From Yesteryear.