4-tube for sale, brand-new and used.

You are bidding on Vacuum Tube Made by Tung-Sol JAN-CTL-6ARS Vintage great tube in a good condition ! Item sold as is. Not in original box.

You are bidding on Damper-Diode Beam Power-Endtetrode Electron Tube Made by Dynascan 33GY7A Vintage great electron tube in a good condition ! Item sols as is. Not in original box.

You are bidding on Electron Tube Made by RCA 4422 73-52 Vintage great electron tube in a good condition ! Item sols as is. Not in original box.

You are bidding on Electron Tube Pre-Amplifier Made by GE JAN-5654W 6AK5 Vintage great electron tube in a good condition ! Great preamp for your audio or radio uses. LOT of 5 pcs in lucrative price !

You are bidding on Electron Tube Made by RCA 931-A 75-13 Vintage great electron tube in a good condition ! Item sols as is. Not in original box.

1x GP-5 glass-envelope beam power triode Transmitting Tube = GP5 ED500 6BK4 ??-5 Descr

6SK7 Metal Tube. 6137 Remote Cutoff Pentodes. Lot of 4 Russian 6K3 tube is a direct substitute for 6SK7 and 6137 Remote Cutoff Pentode.

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6N1P 6H1pi Tube Russian 6N1P's represent a twin triode with the same pinout as 6DJ8 and similar characteristics to the ECC81. It often shows up listed as one of the above, but the tube is unique and is not a pure clone of any of them. Specs differ from brand to brand and you'll find lots data and application notes on the web.

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6Q7 Double Diode + High Mu Triode Tube 6G7. Lot of 4 6G7 (marked 6r7) is a Russian designator for the 6Q7 tube. Packed in a metal envelope the tube was used in early TV sets and receivers for use as a combined detector, amplifier and automatic-volume-control tube.

6SG7 Metal Tube. 6006 Remote Cutoff Pentodes. Lot of 4 Russian 6K4 tube is a direct substitute for 6SG7 and 6006 Remote Cutoff Pentode.

CHRONIX Unique retro style nixie tubes

CHRONIX Unique retro style nixie tube clock

RCA 5651A, Cold-cathode, Glow-discharge Voltage Reference: 85V @ 2.5mA, Low-noise, High-stability, NOS/NIB These are a rare version in that they have ceramic "micas" top and bottom and are in an envelope som

16"x12.5" Cathode Ray Tube This cathode ray picture tube has a screen measuring 16" wide by 12.5" tall. The stalk on the back has 7 male pins. The tube was imported by Data Display Ltd.

This is Telefunken smooth long gray plate 12AX7 ECC83 tube. Tube tests NOS on my Amplitrex and is balanced between both triodes. There was zero grid or H/K leakage.

This is a set of Hammond 6SN7GTB tubes. Codes on both tubes are 31268-26 / AJM. Both were just tested on an Amplitrex At-1000 digital tube tester.