Tubes Asylum

Tube testers are not exact as tubes are not exact. . .

67.164.16.20

In Reply to: RE: How To Test Vintage Tubes posted by Lynn on May 11, 2008 at 18:45:20

it merely gives you a reference point. Experience teaches you what tubes are testing well and what ones aren't. Like you say the percentage does vary and it will. I have 10 testers and all are calibrated. I have two Hickok 539C's and they are both calibrated but test a little different. There are many variables and this goes for the variance even in the resistors inside the tester. There is an balance to be struck between what is an acceptable range and when it really does test poor or test too good, which can indicate a gassy tube as in old tubes. Testers are a bit of science and a bit of art.
The Elaborate DAC=Johnny's Balloon Meshplate 27 Balanced Preamp=Balanced Six Pacs=Newform Research 645

see images at: www.pbase.com/jamato8

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RE: Tube testers are not exact as tubes are not exact. . . - Chris O 15:58:34 05/12/08 (0)

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