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Old 27th Nov 2015, 11:37 am   #75
Dickie
Octode
 
Join Date: Sep 2004
Location: St. Albans, Hertfordshire, UK.
Posts: 1,477
Default Re: Test equipment for valve radio repair

Quote:
Originally Posted by happytiger View Post
Its surprising what can be used. The 15W pygmy lamp,connect one wire to mains live,and you have an AF sig gen, other to grid of OP valve......
I don't understand that. The grid of an o/p valve is going to be at high impedance so you are going to apply nearly 240V ac to it. I would have thought that's likely to have unpleasant results, or am I missing something?
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