Thread: Wanted: BC-348R info
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Old July 3rd 07, 10:01 PM posted to rec.radio.amateur.boatanchors
K3HVG[_2_] K3HVG[_2_] is offline
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First recorded activity by RadioBanter: Apr 2007
Posts: 122
Default Wanted: BC-348R info
wrote:

3) The receiver isn't meant to drive a speaker. Not enough audio gain,
and pushing the set to do so makes it sound awful IMHO.

There are three options:
A) Use only headphones, as was intended. You have a choice of 300-600
ohms or 2000-4000 ohms by changing transformer taps
B) Modify the audio chain to a more-conventional design
C) Use an external audio amp, with an appropriate resistor load to
avoid frying the output transformer.

I'll second the motion from N2EY, except that I have good success using
LS-3 (Hi-Z) speakers and setting the receiver output Z to the correct
tap. The LS-3 is not intended for the BC-348 but, as with the '312 and
'342, they work just fine.

de K3HVG

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