SB-303 puzzle

[KD2E]

I have an SB303 with the SB104 noise blanker in it. You should find a toggle
switch on the rear panel, or perhaps it is switched with the speaker disable
switch?? Anyway, it works great! ....Takes out ignition, electric motor and
other unidentified types of noise completely.
...Dave
----- Original Message -----
From: Chuck Penson <wa7zze at JUNO.COM>
To: <HEATH at LISTSERV.TEMPE.GOV>
Sent: Sunday, April 02, 2000 11:02 PM
Subject: SB-303 puzzle


> Gang,
>
> A friend of mine recently aquired an SB-303 with a curious mod.
>
> The unit has an extra pc board with a Heath part number -- 85-1412-3.
>
> Seems to be an option of some kind. It has an on/off switch and mounts
> above the crystal filters next to the LMO.  Doesn't seem to do anything
> obvious.
>
> Any ideas?
>
> Thanks!
>
> Chuck / WA7ZZE
>
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