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Old October 30th 08, 02:28 AM posted to rec.radio.amateur.boatanchors
Richard Knoppow Richard Knoppow is offline
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First recorded activity by RadioBanter: Oct 2006
Posts: 527
Default Hammarlund SP-210 ?


"Henry Kolesnik" wrote in
message ...
Richard
The volume decreased with the filament transformer so I
need to open it up and see if someone made some mods. I
downloaded the military manual.
It seems to me that someone at Ham went nuts changing
model numbers for very insignificant reasons.
"Richard Knoppow" wrote in
message
m...

Before you do any surgery make sure the matching
transformer is connected the right way around, the 120V
winding goes to the 500 Ohm winding on the RX, the filiment
winding goes to the loudspeaker.
The output transformer would have to be changed to
provide a low impedance output, that would be pretty
obvious. The headphone output is also brought out the back
on the terminal board.


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Richard Knoppow
Los Angeles
WB6KBL