Before I Drive Myself Nuts!!

[pwdrive]

Thanks for the advice, Stupid question, what will be the sum of heater resistances + dropper. Theres a learning exercise for me here, how can I calculate it for myself?

Thanks

Rob

Hi Rob, no worries, with set unpluged switch on and give the forum the resistance reading across the mains plug pins L & N and also from the resevior cap (rect. cathode) to chassis, use an analogue meter. When doing the latter measurement you need the meter lead with the -Ve battery voltage on it connected to chassis and the +ve voltage to the resevior. Note pos and neg meter test leads don't always mean pos and neg voltage on them when switched to ohms on some meters.

Lawrence.