Its probably the RF amp or mixer transistor. The ER41C is a better receiver, especially for repeaters. It has no RF amplifier, just like the M2. The low audio sounds like the audio output transistor. It is mounted all alone on the heatsink. The "A" model didn't have much audio to begin with and the output transistor is notorious for failing.
 
BTW, the ER41C is my favorite repeater receiver. It comes already completely shielded and bypassed, it works great, very reliable, and very cheap (usually free). With a good preamp (if your noise floor will allow), and an RLC Micor squelch, the sensitivity is unbelievable!
 
I may have a spare I can send you, I'll look and let you know.
 
Dave Baughn
Director of Engineering
The University of Alabama
Center for Public Television and Radio
Box 870150
Tuscaloosa, Alabama 35487
205.348.8622 cell 205-310-8798
NEW EMAIL [EMAIL PROTECTED]

>>> [EMAIL PROTECTED] 04/06/05 09:06PM >>>


Anyone got one of these receivers lying around taking up space, I
could use one.  I have an intermittant problem with mine that I cannot
find.  Receive goes deaf then comes back.  Thought it was some bad
solder joints, that did not cure it.  It goes from -120 dB to -80 dB. 
Then it begins to desence when this happens.  If you have something,
please let me know.  Thanks.

Mathew









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