How long can a PP9 last ?

[beam me up schottky]

Wonderful stuff ! Thats what I like about this forum, a thread is started on a specific subject and frequently expands with all sorts of related, useful and fascinating information ! Seems I can expect quite a bit more from my particular PP9 then !

[Paul_RK]

Could be an even simpler problem than output stage current drift - I was given an RP33 Autocrat whose two previous owners had each tired quickly of its heavy battery consumption. Quiescent current was around 75mA and two-thirds of that were just serving to warm up a very leaky 80uF C11 on the amplifier board, which is wired straight across the 18 volt supply.

Paul

[Joe]

"Great Minds..." twice in one day, Alan as I stuffed an old PP9 years ago and it still gives good service. Mine's packed out with newspaper rather than wax though.

- Joe