213 results for testing black
- Match Pair JAN CHS 12SN7GT Sylvania Tube *3-Hole Black Plate NOSOpens in a new window or tabNew (Other)RM 663.32icloseouts1 (5,540) 97.4%+RM 206.01 postagefrom United States
- NOS Testing GE VT-4 211 Black Plate RADIO Transmitting VACUUM TUBE Y.7331-DOpens in a new window or tabRM 1,658.06Top-rated sellerTop-rated sellertubes4less (4,290) 99.6%+RM 170.57 postagefrom United States
- Pair - Rare RCA 6CG7 Triple Black Plates Horseshoe D Getter NOS AUDIO TUBEOpens in a new window or tabNew (Other)RM 426.42icloseouts1 (5,540) 97.4%+RM 206.01 postagefrom United States
- 6BL7GTAp NOS radio audio amplifier tubes Matched Pair RCA Black Plates 1969Opens in a new window or tabNew (Other)RM 284.28icloseouts1 (5,540) 97.4%+RM 206.01 postagefrom United States
- 2 x JG-5751(12ax7) G.E. Tubes*D-getter*Bogey+Testing*Black Plates*3-Mica*NOS*NIBOpens in a new window or tabNew (Other)RM 710.65Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 152.71 postagefrom United States
- 1 x 12BH7A RCA Tube *Black Plates - O*Super Strong Testing* 1960Opens in a new window or tabPre-OwnedRM 397.94Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 143.47 postagefrom United States
- 6L6GB RCA Matched Pair Tubes NOS Testing Black Plate Dual Bottom D GettersOpens in a new window or tabNew (Other)RM 426.42cmalion (931) 100%+RM 138.40 postagefrom United States
- 1 x 12AU7A G.E. Tube*Black Plate-D Getter*Very Strong Testing*3-MicaOpens in a new window or tabRM 137.35Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 135.79 postagefrom United States
- 2 x 5751 (12ax7) Sylvania Tubes*D-getter*Lower Testing*Black Plates-D*3-Mica*Opens in a new window or tabPre-OwnedRM 236.85Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 137.54 postagefrom United States
- 2 x 5751(12ax7) RCA Command Tubes*O-getter*V Strong Testing*Black Plates*Opens in a new window or tabPre-OwnedRM 554.34Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 148.06 postagefrom United States
- Type 56 Matched Pair NOS Testing Black Plate Bottom D Foil Dimple Getter #56Opens in a new window or tabRM 97.13cmalion (931) 100%+RM 124.89 postagefrom United States
- 2 x JG-5751(12ax7) G.E. Tubes*D-getter*Strong Testing*Black Plates*3-Mica*Opens in a new window or tabPre-OwnedRM 397.94Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 143.47 postagefrom United States
- 6SL7GT Sylvania Matched Pair Tubes NIB NOS Testing Black Plates Top Halo GetterOpens in a new window or tabNew (Other)RM 355.35cmalion (931) 100%+RM 132.52 postagefrom United States
- Quad 6CS7 Tungsol NOS Audio Tubes (4 Leben CS-600/CS-660P) Black Plate O GetterOpens in a new window or tabNew (Other)RM 705.96icloseouts1 (5,540) 97.4%+RM 206.01 postagefrom United States
- 3 - 6SN7GT / 6SN7GTA / 6SN7GTB Sylvania Made Philco Black Plate Chrome DomesOpens in a new window or tabNew (Other)RM 829.15icloseouts1 (5,540) 97.4%+RM 206.01 postagefrom United States
- GEC Osram Marconi U709 EZ81 6CA4 Good Testing, Black Plate Square Getter BalanceOpens in a new window or tabPre-OwnedRM 3,127.07hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- 2 x 5751 (12ax7) RCA Command Tubes*V Strong Testing*Black Plates*NOS*NIB #2Opens in a new window or tabNew (Other)RM 947.60Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 159.67 postagefrom United States
- 1 x JAN- 12au7 Tung-Sol (USA) Tube*Black Glass* Low TestingOpens in a new window or tabRM 56.81baxter11342 (2,152) 100%+RM 126.46 postagefrom United States
- 2 x 12au7 Tung-Sol Tubes*Black Glass*Strong Testing*#9Opens in a new window or tabPre-OwnedRM 326.87Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 141.38 postagefrom United States
- 1 x JAN-CRP-5814 (12AU7) Raytheon Tube*Super Strong Testing*Black-D*Mil Specs*#3Opens in a new window or tabPre-OwnedRM 189.47Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 99.50 postagefrom United States
- (1) NOS Testing Golden Dragon Blackplate 300B Triode Audio TubeOpens in a new window or tabNew (Other)RM 355.35Top-rated sellerTop-rated sellermillerstubes (9,419) 99.7%+RM 301.81 postagefrom United States
- Raytheon 6414 Black Plate Triple Mica Nos Testing Values Matched PairOpens in a new window or tabBrand NewRM 920.59hanoitubes (1,763) 100%Free International Shippingfrom VietnamLast one2 watchers
- 1 x CRC-5814A(12AU7) RCA Tube*Black Plates-O*Very Strong Testing*Command*#2Opens in a new window or tabPre-OwnedRM 165.78Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 99.50 postagefrom United States
- GE 6072 12AY7 black plate Red Tips Triple Mica O Getter NOS Testing Matched PairOpens in a new window or tabBrand NewRM 2,433.67hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- NEC 50CA10 Black Plates Nos Testing Values Tightly Matched QuadOpens in a new window or tabPre-OwnedRM 3,310.20hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- 2 x 5751 (12ax7) RCA Command Tubes*Super Strong Testing*Black Plates* #3Opens in a new window or tabPre-OwnedRM 710.70Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 152.71 postagefrom United States
- 1958 RCA 12AU7 ECC82 Black Plate Mil-Spec Tubes, Matched Pair, NOS TestingOpens in a new window or tabNew (Other)RM 341.14n7rk (8,351) 99.2%+RM 139.82 postagefrom United States
- RCA JAN CRC 6N7GT Black Plates Same Code Excellent Testing Values MatchedOpens in a new window or tabBrand NewRM 469.06raretubestore (259) 98.8%+RM 135.74 postagefrom Vietnam
- USA 6080/6AS7/ECC230 TUBE TESTED WITH ROETEST V10 BLACK PLATES QTY-1Opens in a new window or tabBrand NewRM 165.83Top-rated sellerTop-rated sellervaltek_2005 (16,202) 100%+RM 71.07 postagefrom Romania
- Rare NOS 3223 Audio Tube (12au7) Short Black plates D GetterOpens in a new window or tabNew (Other)RM 416.94icloseouts1 (5,540) 97.4%+RM 206.01 postagefrom United States
- 6080WA/6AS7/ECC230 PHILIPS BY MULLARD TESTED WITH ROETEST V10 BLACK PLATES QTY-2Opens in a new window or tabBrand NewRM 1,563.54Top-rated sellerTop-rated sellervaltek_2005 (16,202) 100%+RM 165.83 postagefrom Romania
- STRONG testing BALANCED Sylvania black plate 6SN7GTB, Etracer tested, high gain!Opens in a new window or tabPre-OwnedRM 194.26thetubefairy (100) 100%+RM 87.42 postagefrom United States
- Mullard GZ32 5V4G CV729 Black Plate D Getter Good Testing Values Super RareOpens in a new window or tabPre-OwnedRM 3,221.83hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- GEC Osram Marconi U709 EZ81 6CA4 NOS Testing, Black Plate Square Getter BalancedOpens in a new window or tabBrand NewRM 6,628.45hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- 6072 12AY7 United Electron black plate Triple Mica D Getter NOS Testing BalancedOpens in a new window or tabBrand NewRM 1,255.57hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- 5933WA / 5933 / 807W Sylvania Tube NOS Testing Black Plate Dual Side GettersOpens in a new window or tabRM 68.70cmalion (931) 100%+RM 127.83 postagefrom United States
- Mullard ECC32 6SN7 Black Plate Foil Getter Excellent Testing Matched pairOpens in a new window or tabPre-OwnedRM 6,958.45hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- Sylvania 6B4G Military Version Black Plate Nos Testing Matched PairOpens in a new window or tabBrand NewRM 1,505.02hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- Matched Pair Tungsol 12BZ7 NOS Black plate halo getter Audio Vacuum TubesOpens in a new window or tabNew (Other)RM 236.90icloseouts1 (5,540) 97.4%+RM 206.01 postagefrom United StatesLast one2 watchers
- Marconi U709 EZ81 6CA4 NOS Testing, Black Plate Square Getter BalancedOpens in a new window or tabBrand NewRM 3,311.85hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- 1 x 12AU7 Philco Tube*Black Plates Foil-D*Super Strong Testing*1951-Rare*#9Opens in a new window or tabPre-OwnedRM 379.04Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 142.90 postagefrom United States
- 6072 12AY7 United Electron black plate Triple Mica D Getter NOS Testing BalancedOpens in a new window or tabBrand NewRM 1,255.57hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- 1 x JRC-6189 (12AU7) RCA Tube*Black Plates-O*Very Strong Testing*Command*#3Opens in a new window or tabPre-OwnedRM 208.42Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 99.50 postagefrom United States
- Type 56 Sylvania Matched Pair NOS Testing Tubes Black Plate #56Opens in a new window or tabRM 116.08cmalion (931) 100%+RM 125.46 postagefrom United States
- 2 x 5751(12ax7) RCA Command Tubes*O-getter*V Strong Testing*Black Plates*NOS*NIBOpens in a new window or tabNew (Other)RM 914.43Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 158.72 postagefrom United States
- 2 x 6SN7gt Raytheon Tubes *Black Plates*D-Getter*Support Rods*Lower Testing*Opens in a new window or tabPre-OwnedRM 213.16Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 139.63 postagefrom United States
- GE 6072/12AY7 black plate, Triple Mica NOS Testing Values Matched PairOpens in a new window or tabBrand NewRM 2,220.46hanoitubes (1,763) 100%Free International Shippingfrom VietnamLast one11 watchers
- Osram U709 EZ81 6CA4 Excellent Testing, Black Plate Square Getter BalancedOpens in a new window or tabPre-OwnedRM 6,154.65hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- 6080 USED RCA Black Print black Plates Testing Stron & Balanced GuaranteedOpens in a new window or tabPre-OwnedRM 42.41wickham84 (8,525) 100%+RM 115.23 postagefrom United States
- 5U4GB PHILCO Matched Pair Tubes NOS Testing Black Plates Top Halo GetterOpens in a new window or tabPre-OwnedRM 123.19cmalion (931) 100%+RM 129.44 postagefrom United States
- 1 x 12AU7 Sylvania Tube*Black Plates-D*Very Strong Testing*(4 Avail)1954Opens in a new window or tabPre-OwnedRM 132.62Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 99.50 postagefrom United States
- Philips Miniwatt ECC40 Black Plate Disc Getter Metal Base NOS Testing ValuesOpens in a new window or tabBrand NewRM 2,274.23hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- New Listing1 x JRC-12AT7WA RCA Tube *Black Plates-D*3-Mica*Strong Testing*Opens in a new window or tabPre-OwnedRM 151.57Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 135.03 postagefrom United States
- Mullard 12AU7 ECC82 Square getter Black Welded Plate, Used Excellent TestingOpens in a new window or tabPre-OwnedRM 18,478.16hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- 2 x 6J5g Zenith Tubes *Black Plates-Hot Stamped Base* Strong Testing*#1Opens in a new window or tabPre-OwnedRM 350.56Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 99.50 postagefrom United States
- 6L6GC McIntosh NOS Testing One Tube Black Plate for Mc230 Monoblock Mc240 AmpsOpens in a new window or tabNew (Other)RM 592.25cmalion (931) 100%+RM 143.28 postagefrom United States
- 1950's RCA 6CZ5 Short Bottle Tubes, Matched Pair, High Testing, 6973 SubstituteOpens in a new window or tabPre-OwnedRM 284.28n7rk (8,351) 99.2%+RM 118.45 postagefrom United States
- Brimar 5R4GY CV-717 Black Plate DD Getter NOS testing values BalancedOpens in a new window or tabBrand NewRM 2,883.78hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- 5933 / 807 Sylvania Tube NOS Testing Black Plate Dual Side GettersOpens in a new window or tabRM 66.33cmalion (931) 100%+RM 127.78 postagefrom United States
- (2) NOS testing RCA Tall Bottle Black Plate 6L6GB Mcintosh Audio TubesOpens in a new window or tabPre-OwnedRM 473.80Top-rated sellerTop-rated sellermillerstubes (9,419) 99.7%+RM 301.81 postagefrom United States
- 5Z3 RCA One (1) Tube Black Plate ST Glass NOS-TestingOpens in a new window or tabRM 146.88cmalion (931) 100%+RM 130.15 postagefrom United States
- 2 x 6J5g Philco Tubes *Black Plates-Hot Stamped Base* Strong Testing*#7Opens in a new window or tabPre-OwnedRM 284.23Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 99.50 postagefrom United States
- GEC U52 5U4G Black Plate Black Base Cup Getter Excellent Testing ValuesOpens in a new window or tabPre-OwnedRM 2,940.63hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- 1940's Raytheon 6V6GT Black Glass Tubes, Closely Matched Pair, NOS TestingOpens in a new window or tabPre-OwnedRM 284.28n7rk (8,351) 99.2%+RM 140.10 postagefrom United States
- 6072 12AY7 GE tube black plate Triple Mica Testing NOS Matched pair Lear JetOpens in a new window or tabPre-OwnedRM 2,127.36Top-rated sellerTop-rated sellercartago_delenda_est (1,255) 100%+RM 284.28 postagefrom Italy
- GEC Osram Marconi U709 EZ81 6CA4 NOS Testing, Black Plate Square Getter BalancedOpens in a new window or tabBrand NewRM 6,628.45hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- 1 x 12BH7A Westinghouse Tube *Black Plates - D*Very Strong Testing*1950'sOpens in a new window or tabPre-OwnedRM 326.87Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 140.20 postagefrom United States
- GEC U709 EZ81 6CA4 NOS Testing, Black Plate Square Getter BalancedOpens in a new window or tabBrand NewRM 3,311.85hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- New Listing2 x 12AU7A Sylvania Tubes*Short Black Plates-D*Weak Testing Pair*Mid-1950'sOpens in a new window or tabParts OnlyRM 71.02Top-rated sellerTop-rated sellerfng2u (6,718) 99.7%+RM 132.62 postagefrom United States
- Mullard ECC35 6SL7 VT-229 Black Plate Pan Getter Excellent Testing Matched pairOpens in a new window or tabPre-OwnedRM 7,012.22hanoitubes (1,763) 100%Free International Shippingfrom Vietnam
- (2) Matched NOS Testing RCA Blackplate 6L6GC Guitar Audio TubesOpens in a new window or tabPre-OwnedRM 710.65Top-rated sellerTop-rated sellermillerstubes (9,419) 99.7%+RM 301.81 postagefrom United States
- RCA 12AU7 /12au7a 1950 Square Getter Black PLATES NOS Highly Sought Audio TubeOpens in a new window or tabNew (Other)RM 379.04icloseouts1 (5,540) 97.4%+RM 206.01 postagefrom United States
- 5U4GB Sylvania Matched Pair Tubes NOS Testing Black Plates Top Halo GetterOpens in a new window or tabRM 123.19cmalion (931) 100%+RM 129.44 postagefrom United States
- STRONG testing Sylvania black plate 6SN7GTB, Etracer tested, very high gain!Opens in a new window or tabPre-OwnedRM 184.78thetubefairy (100) 100%+RM 87.42 postagefrom United States
- PAIR 6080WA/6AS7/ECC230 PHILIPS BY MULLARD TESTED WITH ROETEST V10 BLACK PLATESOpens in a new window or tabBrand NewRM 1,895.20Top-rated sellerTop-rated sellervaltek_2005 (16,202) 100%+RM 118.45 postagefrom Romania
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