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Chuck Forsberg WA7KGX N2469R July 12th 09 03:29 AM

Hallicrafters S-76 Alignment
 
Now that I've replaced a defective cap inside an IF can,
the radio is fairly hot on most frequencies. However,
the published alignment procedure leaves the low end of
the standard broadcast band somewhat weak.

Any ideas or revised alignment procedure for the S-76?



--
Chuck Forsberg www.omen.com 503-614-0430
Developer of Industrial ZMODEM(Tm) for Embedded Applications
Omen Technology Inc "The High Reliability Software"
10255 NW Old Cornelius Pass Portland OR 97231 FAX 629-0665

Richard Knoppow July 12th 09 09:00 AM

Hallicrafters S-76 Alignment
 

"Chuck Forsberg WA7KGX N2469R" wrote in
message
...
Now that I've replaced a defective cap inside an IF can,
the radio is fairly hot on most frequencies. However,
the published alignment procedure leaves the low end of
the standard broadcast band somewhat weak.

Any ideas or revised alignment procedure for the S-76?



--
Chuck Forsberg www.omen.com
503-614-0430
Developer of Industrial ZMODEM(Tm) for Embedded
Applications
Omen Technology Inc "The High Reliability Software"
10255 NW Old Cornelius Pass Portland OR 97231 FAX
629-0665


The S-76 does not appear to have any sort of padder
for the RF on the lower two bands. Probably the RF
transformers were adjusted at the factory by moving turns on
the secondaries. Look at these and see if you can spot
anything. You can sort of test this by adjusting the HF
trimmers to see if you can get a stronger signal on the low
end. Its not surprizing that the transformers may have
changed a bit with so much time.




--
Richard Knoppow
Los Angeles
WB6KBL





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