MATCHED PAIR (2) 6F6G TUBES. BOTH ENGRAVED BASES DARK GLASS. I BELIEVE THEY ARE BOTH SYLVANIA MADE FOR OTHER BRANDS. 1% MUTUAL CONDUCTANCE PLATINUM MATCHED IF YOU WILL LIGHTLY USED TESTING STRONG All tubes are fully tested for leakage, shorts, gas, life, and mutual conductance. Then they are matched according to brand, properties within the date of production, and mutual conductance. Matches are based on mutual conductance. I use two different, calibrated Hickok 539CS and/or, a Weston model 981 type 3. If they pass the testing, they will be sold with test data for that tube. If the tubes arent matched within 6%, I will acknowledge that in the description. I also offer a money back guarantee. Buyer pays return shipping for local pickups, I advise you to bring the electronics that the tubes are going in, within reason. Guitar amps, small radios, etc. I will allow you to test them on site, but you will be responsible for any product damaged by a faulty electronic. Im an honest seller and I stand by my product. Feel free to message me with questions. GlassBatman8

6F6G Pair RCA Victor NOS NIB Electronic Vintage Tubes. Another set of tubes right out of paps shop! See Photos.

Vintage Tested NOS 98% RCA 6F6G Vacuum Tube. Condition Is Used Tested Good Tube Tube Passed All Test Tube Tested At98 With A Minimum Being 46 And 100 Being New Tube Was Tested On A Calibrated Precision 612 Vacuum Tube Tester All Of Our Tubes Are 100% Guaranteed Check Out All Of Our Vintage Listings We Consider All Offers We Ship Same Or Next Day

Pre Loved Item, Listed as follows: Lot of Seven Boxed Vintage Valve Tubes. Listed as follows: 3 x Unbranded ECC81.1 x Unbranded EL84.1 x Zaerix 6SN7GT.1 x Zaerix 6F6GT.1 x Zaerix 6SJ7. All New Old Stock from a electronics shop, which closed down in the 1990s. I cannot test these valves so sold as seen, UNTESTED with NO RETURNS. Please see photos for the actual items for sale. FREE UK POSTAGE. No Returns unless not as described.I always used recycled or upcycled packaging for postage whenever possible.

PAIR SYLVANIA 6F6G Coke Bottle POWER AMPLIFIER VACUUM TUBES ORIGINAL BOX.

Wellcome to our store! Lot includes of 2 new matched tubes 6F6M1 6?6?1 from old stock, made in 1950 years in the USSR. Warning! Tubes are matched by electrical parameters (Ia), not by year manufacture or producer. 6F6S is Output pentode.Russian output pentode 6F6M1 (6?6?1) is quality equivalent of the 6F6G 6F6GT 6F6 KT63 N63Tube is tested with professional tube Tester L3-3.Designed to amplify low frequency power in the output single-stroke and two-stroke circuits of bass amplifiers.The 6F6M1 pentode is used in sound reproducing, receiving equipment and other general-purpose radio engineering devices.Cathode oxide of indirect filament.Works in any position.Available in glass design.The plinth is 6-pin octal with a key.Overall dimensions of the pentode 6F6S:- lamp height - 83 mm;- lamp diameter - 33 mm.Operating time at least 500 h.Foreign analogue of the lamp 6F6C: 6F6G, 6F6GT, KT63, N63, 1621, 1611. Technical characteristics and electrical parameters of the lamp 6F6M1:• Filament voltage, V: 6.3 • Filament current, mA: 700 • Voltage at the anode, V: 250 • Voltage on the second grid, V: 250 • Displacement voltage on the first grid, V: -16.5 • Current in the anode circuit, mA: 34 • Current in the circuit of the second grid, mA: 7 • Steepness of characteristics, mA/V: 2.5 • Internal resistance, kOhm: 78 • Load resistance, k?: 7 • Output power, W: 3.2 Our valued customers!You all know that our country is now at war with Russia. At the moment, not a single package has been lost and all our customers have received their purchases on time. We can assure you that we guarantee you 100% delivery of your purchase or we will refund your money in full. Order with confidence and we will be happy and will do everything in our power to ensure that you are 100% satisfied. Shipping: We ship worldwide by Express Mail Service. Tracking number will be provided. Estimate delivery time is 15-40 days. If you have any questions, please contact us and we will be happy to answer you. Thank you very much for choosing our store.

(16) NOS to Strong Sylvania & Other 6F6G Audio Radio Tubes (I NO LONGER SELL TO CHINA, VIETNAM OR INDONESIA DUE TO LOST PARCELS IN CUSTOMS, I DO NOT LOWER DECLARED VALUE OR WRITE AS GIFT ON CUSTOMS PAPER DUE TO US LAWS)

Tubes: lot of 5 number 6F6G various brands engraved low testing ST shape tubes- bid accordingly.

- ------------- Description - ------------- 50 PCS EMPTY WHITE VACUUM TUBE BOXES For 56 6F6G 112A 5Y3G 6Y6G 5Y4G & Similar The box have Built in protective layer (you can check my photo) So that the vacuum tube will not move freely in box. SIZE: long: 13.7cm 5.39in wide: 4.8cm 1.89in high: 4.8cm 1.89in If you need more quantities or you need other size please contact me. Suitable for speaker, amplifier,CD player etc. - ------------- Payment - ------------- The terms of payment we accept: PAYPAL If you have any questions, please feel free to contact me - ------------- Shipping - ------------- When I receive your payment. I will send your items within 1-3 days We provide professional packaging services to ensure that you receive your items safely. - ------------- About postage - ------------- If you purchase multiple items from our store, we offer combined shipping to save you money. - ------------- About us - ------------- Quality merchandise and customer service is our primary concern. Many of our customers come back to us again and again because of our integrity, fair prices, and excellent customer service, regardless of where they live in the world - ------------- Contact us - ------------- Hello.If you have any questions about the goods, please let me know. I will contact you actively. Give you a reasonable solution. I hope we can have a good deal. thank you very much. :?

filament & performance tested good, please see photo. Gas & cathode leakage also tested good. 6F6GT = CV731 = Power Pentode mu=1.8mA/V (spec=1.6 ) Notes : For overseas buyers, any applicable customs charges are the responsibility of the buyer

PAIR SYLVANIA 6F6G Coke Bottle POWER AMPLIFIER VACUUM TUBES ORIGINAL BOX.

Matched Pair of Ken-Rad 6F6G Power Amplifier Pentode Tubes Tested 2 Ken-Rad 6F6G tubesSmoked glass envelopes, bottom getters. One has a hot stamped logo, also marked with code 7. The other is silk screened, date code F7. Tested strong and closely matched on my calibrated TV-7/U at 80 and 82; 50 is the minimum for a good tube.All tubes pass short and gas test where applicable. Condition is used, good, tested. Tight bases, no rattles.

- ------------- Description - ------------- 50 PCS EMPTY WHITE VACUUM TUBE BOXES For 56 6F6G 112A 5Y3G 6Y6G 5Y4G & Similar The box have Built in protective layer (you can check my photo) So that the vacuum tube will not move freely in box. SIZE: long: 13.7cm 5.39in wide: 4.8cm 1.89in high: 4.8cm 1.89in If you need more quantities or you need other size please contact me. Suitable for speaker, amplifier,CD player etc. - ------------- Payment - ------------- The terms of payment we accept: PAYPAL If you have any questions, please feel free to contact me - ------------- Shipping - ------------- When I receive your payment. I will send your items within 1-3 days We provide professional packaging services to ensure that you receive your items safely. - ------------- About postage - ------------- If you purchase multiple items from our store, we offer combined shipping to save you money. - ------------- About us - ------------- Quality merchandise and customer service is our primary concern. Many of our customers come back to us again and again because of our integrity, fair prices, and excellent customer service, regardless of where they live in the world - ------------- Contact us - ------------- Hello.If you have any questions about the goods, please let me know. I will contact you actively. Give you a reasonable solution. I hope we can have a good deal. thank you very much. :?