[Heathkit] SB-104-A TX weak audio

[Jim Shorney]

See:

http://mailman.qth.net/pipermail/heathkit/2013-June/015709.html

73

-Jim
NU0C

On Wed, 2 Oct 2013 21:01:30 -0400, Alexander N. Gerli wrote:

>Hi, folks,
>
>Got a TX audio gain problem. And it's not my mic, as it happens with
>several known good mics.
>
>I get perfect 100W out tuning up on High Power, and 10W on Low Power. So,
>the finals and CW are fine.
>
>But I have to run the audio gain wide open to be heard. Only way I can get
>full-power on SSB is with a whistle into the mic. Speech drops way off. and
>it's not a matter of meter damping in my wattmeter; I've discounted that.
>This is a recent problem.
>
>Are there any known mods to the speech amplifier (don't remember which
>board that is, my manual is downstairs in the shack)? If there are any good
>ones to share please e-mail me.
>
>Vy 73,
>
>
>Sandy AC1Y
>
>
>Alexander N. Gerli, Sr.
>548 Allred Mill Road
>Mount Airy, NC 27030-2202
>
>Scotsmen walk about 900 miles each year.
>A Scotsman drinks around 45 gallons of Whisky a year.
>Scotsmen get about 20 Miles Per Gallon.

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