"Smokey" wrote in message
m...
Hello Glowguys,

I am working on a Hallicrafters SX-25 that has a specific li'l nuance
(or better described, NUISANCE) and I am hoping someone out there can help
me.

The SX-25 has TWO RF COILS for the standard broadcast band (Band 1)
preceeding the First Detector/Mixer/HF Oscillator. Both of these coils
were disconnected prior to my obtaining the rig for some unknown reason
(the coils are fine, I've got continuity through the primary and secondary
of each). HOWEVER I also own two other SX-25s and when I compare this one
to those I find the other ones only have ONE RF COIL ahead of the First
Detector/Mixer/HF Oscillator for Band 1.

H-m-m-m-m.

One suggestion I received was that the circuit of the early run SX-25s was
very similar to that of the SX-17, so I compared the SX-17 to the '25
however it shows the antenna jacks connected directly to the 1st
Detector/Mixer and completely bypassing the RF AMP stages on its Band 1
(standard broadcast band).

My Band 1 is dead but I have goot perfecormance now on Bands 2, 3 and even
pretty good performance on 4.

Does anyone have an early run SX-25 and can tell me how these coils are
wired? I've experiemented with a lot of logical combinations I thought
might be possible but none seem to bring in the ball game and
neo-conservative dingbat talk shows for me.

Every schematic I have ever seen for the SX-25 (including those on BAMA
and the originals I own) show only one RF coil in use for the the standard
broadcast band, so if you've got an earlier schematic I WILL PAY MOOLAH
for it.

Thanks for any help you can toss my way.

W9STB


Hi Vern,

Have you tried wiring it like the schematic you have?


--
Regards
B.H.
Hill Amplification
http://hillamplification.com

Brian's Radio Universe
http://webpages.charter.net/brianhill/500.htm