Trouble shooting push-pull amp

[Jan Panteltje]

On a sunny day (Mon, 24 May 2004 00:05:45 -0700) it happened "Terry Given"
<the_domes@xtra.co.nz> wrote in <Qo0sc.8955$XI4.322384@news.xtra.co.nz>:

I used to repair monitors and smps for a living before I went to uni and
became an engineer. After about 6 months, I learned to replace all
suspect-looking electro's - swollen tops (those grooves are so the case
ruptures there), goo leaking out the bottom, etc. If i had a hard-to-find
fault in a particular area, I would replace all the electros there, THEN
look for the fault. between that and fixing all the broken tracks/solder
joints, probably 75% of all faults had gone by the time I looked for them.
caps are cheap. time is not.
Anyone remember Vitrohm composite carbon resistors?

Anyone remember Wima capacitors?
Wima still exists BTW, but I am still scared to use these...
The resistors would go high in TV sets, or crack open, or go up in flames..
Those caps would short... crack, fail.
In those old days (sixties) if we foud those resistors in a TV set,
we would start by replacing ALL of these, some job, no PCBs, all wires with
the wires through the holes in the tube sockets, and we HAD to get the new
wire through the hole, and then solder it.
JP