That's a decoupling cap and it's kind of standard design for solid state
amplifiers. Just break the connection to the red wire feeding +13 v into the PA
and insert an amp meter.
Operate rig into a dummy load.
BE VERY CAREFUL when working on that PA as the transistors are obsolete and TT
does not stock them.
RF parts have a sub but they are not as robust as the original ones.
Sent from my iPhone
On Feb 23, 2012, at 10:35 AM, John <firstname.lastname@example.org> wrote:
> I have been able to move the back panel out enough to at least see the
> final amplifier board. I am trying to figure out a safe way to insert a
> ammeter into the power line to the final. Not there yet.
> As an aside, it appears that someone has added a 1000 mf electrolytic to
> ground across the power line (red) to the final. This does not appear
> in the schematic that is in the manual. Was there a problem with early
> Argosys that this was meant to cure?
> John / WA1JG
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