View Single Post
Old 11th Sep 2021, 10:58 pm   #5
Skywave
Rest in Peace
 
Join Date: Jun 2006
Location: Chard, South Somerset, UK.
Posts: 7,457
Thumbs up Re: Valve testers & 'soak' testing.

Quote:
Originally Posted by Ed_Dinning View Post
From the units I have seen I would say no, the transformers look as if they are designed for about a 30% duty cycle max.

It is simple enough to make a large PSU and a couple of meters to carry out soak testing. Then you can put the valve back in your nice precision tester to check on progress.

Ed
Thanks: so the answer is 'No' - which was what I anticipated; just wanted confirmation.
So, a large PSU as a Test Jig for FW rectifiers is called for. Ho-hum, another project to build . Plus something similar for watt-ful AF output valves, such as the EL34, EL37, KT88, etc.

Al. / Sept. 11, 2021
Skywave is offline