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Old August 27th 08, 04:50 AM posted to rec.radio.amateur.boatanchors
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Posts: 527
Default Cardwell Model 54 Receiver


"COLIN LAMB" wrote in message
m...
Hello Richard:

I think the Cardwell company was owned by another company,
which was owned by the Cardwell family. At some point,
during the demise of Hammarlund, that company purchased
the Hammarlund assets.

The specified audio output of the Cardwell receivers is
high enough that it was probably push-pull. So, if you
ever find one, the audio will probably be good.

I just had a thought about searching for this elusive
receiver. Check the various manual sources. If there
were a few radios made, there must have been a manual
floating around. Fun to see one.

73, Colin K7FM

I think so too. I'm not quite sure what happened to
either Hammarlund or Cardwell. There is some Hammarlund
history on the web. At the time the Cardwell RX went on the
market a number of receivers had relatively high quality
push-pull output stages. The Hammarlund Super-Pro for one
and a couple of National receivers, I think the SX-28 and
SX-32 had push-pull amps. I can testify as the owner of a
BC-779 that the low distortion helps even with CW since
distortion magnifies noise. Those having receivers with an
external connection to the detector may get surprize if this
is connected to a high quality audio system. Most of these
connections have DC on them so a series capacitor and a
resistor are necessary. An SP-600, for instance, will let
you hear all the clipping from the processing on AM
broadcast stations. There WAS, dear children, high-quality
AM in the dear, dead, long ago before being the loudest kid
on the block became the objective.
(I have created an alternative signature, here it is)

--
Richard Knoppow
Los Angeles
WB6KBL






 
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