"Phil Allison" wrote in message
...

"Ian Field"


I'd go for 2x 4007's in series to be on the safe side - not forgetting
equal value x-class capacitors in parallel with each diode to damp &
equalise any spikes.

** Quite unnecessary - any voltage spikes are clamped by the first filter
cap.

Class X caps are more likely to fail than 1N4007 diodes are.


As well as an added sag resistor,

** Not essential - there will be only 30 volts increase in the B+.


Enough for a nice blue glow around the output valve mica supports - if you
like that sort of thing.