Re: VCM163 Calibration Question
Some people have DC-based valve testers whose accuracy can be verified against calibrated voltmeters, and with them, they can create standardised valves.
One very generous regular on this site made a group of valves with accurately measured individual characteristic curves and then shared them round interested parties.
But if you're testing valves in order to see whether they are the cause of a problem in a radio, then getting a reasonable result for a trusted ECC81 says you are as close as you need to be.
If you want to pick a matched pair of some type for a push-pull amplifier stage, then you are doing a comparison and you don't need absolute accuracy for that.
Swap a few valves with other people and you can build confidence that all is well.
David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
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