1. Get a child to listen for it. They have better hearing that we do.
2. Record it with a mic into your pc and with the appropriate software,
play it back and look at the displayed spectrum.
3. Put earmuffs on the dawg.
73, Alek
VK6APK
On 4/02/2015 12:12 PM, Dave Borcher wrote:
Group, this is for real, I'm looking for suggestions. TL922 amp, fairly
good condition;when I key it full power for tuneup or CW, my little dog
goes absolutely nuts. An LK500 amp doesn't bother the dog. I like the
TL922 but I don't like to torment the dog. I suspect transformer
laminations buzzing, but I'd have thought I'd hear that. Again, this is
for real, and I'd like to hear serious suggestions of what to look for or
how to test. Thanks
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