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 Vacuum Tube Supplies

Vacuum Tube Supplies

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 We sell used, NOS(New Old Stock) & NIB(New In Box) Vacuum Tubes for Radio, TV & Audio, covering a wide range, including antique tubes. Other related items: Technical Documentation for Amplifiers, Communications, Radios & TVs; & Vinyl Records. Add us to your list of favorite sellers and come again.

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We need your help!

We need your help we have over 20,000 to 30,000 tubes in stock!!

If you don't see the tube you are looking for please let us know, drop us an email, with no obligation.

We will try to locate the tube and post it as a priority.

Thanks Vacuum Tube Supplies.


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General Interest
Our Quality Process

How we test our tubes:  Before we stock, sell or ship, each tube, whether used, NOS (New Old Stock) is fully tested on our calibrated Hickok 539C tube tester. If any test results in failure for shorts, leaks or open filaments, we discard the tube, and will never list it.

  • Every tube is tested for shorts using our Hickok 539C Ohm-meter.
  • All tubes are tested for shorts hot and cold to 50MOhms. We don’t neon test for shorts, as neon testing is not sensitive enough. 
  • All tubes are gas leak tested to ensure reliable performance.
  • All tubes are tested for mutual conductance / trans-conductance, including each section, if applicable. We test to manufacturers new tube mutual conductance range(s). If a used or NOS tube is on the lower end of the manufacturer's range we discount the price of the tube. We try to post manufacturers' mutual conductance range(s), and the Hickok minimum values for each tube we sell, so you can make an informed decision when purchasing.

  • We also life test every tube, reducing the filament voltage by 10%, which gives an indication of future performance. We discard any used or NOS tube that does not meet the life test.

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