[TenTec] Argosy testing

Mike Bryce prosolar at sssnet.com
Thu Feb 23 08:24:49 PST 2012


John, 

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.

Mike wb8vge 

Sent from my iPhone

On Feb 23, 2012, at 10:35 AM, John <jh.graves at verizon.net> 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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