Meat Plow wrote:

On Sat, 14 Jul 2007 22:37:37 +0100, N Cook wrote:

Eeyore wrote in message
...


N Cook wrote:

The 2 reservoir caps are 6800uF, 80V rating with presumably about 65V
on each , when all is in working order.

That's a reasonable size. They won't be causing excessive switch on
current.

Is the power transformer toroidal or EI ? That's where the big
difference
is.
Toroids will take a considerable switch-on current (it's largely due to
their
magnetic characteristics).

Graham


Toroidal , not E-I lamination transformer
I'm coming around to thinking 5 amp anti-surge in the mains fuse-holder
and a 5 amp fuse shunted in the + and - rail traces from the DC side of
the bridge rectifier before the reservoir caps, but undecided whether
quick-blow or anti-surge ones there.

Fix the amp, put the fuses of your choice in and put it through its paces.
You'll probably want to run some music through it at high volume
preferably some Hip Hop barf. See which fuses blow and which don't.

There are uses for sine, square, multiple sine, and complex waveforms in
testing. I suggest using each for what it will make esily visible in the
performance.
--
JosephKK
Gegen dummheit kampfen die Gotter Selbst, vergebens.Â*Â*
--Schiller