[ARC5] Dynamotor Whine

[Tim]

I had a similar problem with one of mine once.  Try grounding the dynamotor
rectangular mounting plate to the chassis with a short piece of solder wick
or wire.  Noise disappeared.  That should not make any difference but it
did in mine.  Something wasn't "grounded" like it should have been - it's a
useful troubleshooting clue...
Tim
N6CC


On Sun, Oct 13, 2013 at 9:21 PM, Joel R Roberts
<joelroberts001 at comcast.net>wrote:

> Does Anyone know how best to get rid of the dynamotor whine in the
> receiver? I left the RF and Audio Filters in place in my R-26/ARC-5 and
> have it running from a 24vdc power supply. I would think some sort of
> filter caps or perhaps the dynamotor needs rebuilt. Thanks
> everyone.......Joel R Roberts KB0FPT
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