hw101 problems

[Bernie Murphy]

Mike:

Have you done the "grounding thing" and tightened all the bolts and nuts
around the circuit boards?
Floating grounds can give you very weird problems.

I am sure you have already verified the voltages around the appropriate
tubes, etc?

73 de Bernie, VE3FWF

----- Original Message -----
From: "MIKE BRYCE" <prosolar at SSSNET.COM>
To: <HEATH at LISTSERV.TEMPE.GOV>
Sent: Sunday, February 01, 2004 1:30 PM
Subject: hw101 problems


> Hola!
>
> well dug out a winter project that has me stumped.
>
> it's a hw101 with the following problems
>
> everything works just fine in the tune position
>
> when in ssb mode and you key the mic, there's full output and the speaker
> produces a tone. (not the side tone)
>
> the carrier balance and null controls have no effect.
>
> tried switching out known good tubes and no joy....
>
> anyone run across this before?
>
> the mic gain control works normally when in tune position...
>
>
> Mike Bryce, WB8VGE
> SunLight Energy Systems
>
> http://www.seslogic.com
> http://www.theheathkitshop.com
>
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parties involved.  This list and the City of Tempe are not responsible
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