"Rob Studdert" <[EMAIL PROTECTED]> wrote: >On 7 Dec 2005 at 12:54, John Francis wrote: > >> >> You don't need to put 20KV through a tube to test it >> Most valve testers just check for simple things like >> broken filaments - 6V is quite enough for that. > >The good ones checked gain and leakage currents too.
Yep, and checked for shorts (between grid & plate for example). -- Mark Roberts Photography and writing www.robertstech.com
