19-11-2012, 05:58 PM
(19-11-2012, 05:26 PM)Steve_P Wrote: You mean this, don't you Mark.
http://www.radiomuseum.org/r/graves_vulc...perhe.html
The output valve is a PM22A, which has a 2 volt heater, so the LT is 2 Volts. The HT is around 135 Volts, 130 will do. HT only has to be in the ballpark, as Batteries wore out and the HT would drop. Don't go above 135v, but they will probably work to about 100v.
No cquirkit I'm afraid, but you can work without one!
Cheers,
Steve P.
That is the rascal, I am guessing it will be like the Aerial and that trainer advert "Just do it"
cheers Mark
Keep on Fiddling!
