[Heath] SB-303 Noise Blanker Schematic

[Guy Giacopuzzi]

Coool....now, does anyone have an SB-104 schematic handy so that a 
comparison could be made?  I'm betting that Pete's 303 blanker is unique 
to the 303'...and now the big question remains, why didn't they develop 
this on the 303'?  I know the answer to one question though....The 
question, is why does a 303' have an rf attenuator in the first place?  
It's kind of stupid, and it doesn't do anything that an rf gain control 
can't already do.  Soooo, I bet this "rf attenuator' was the cheap 
answer to "What do we fill that spot with?" that the engineers had to 
answer when they couldn't get the noise blanker to work.  At least, 
that's my theory...

Guy,
WA6OQQ

On 3/15/2014 2:30 PM, pbrickey at verizon.net wrote:
> Hi,
>    I have had quite a few questions about this, so I thought I would send out the schematic that is in my SB-303 manual.
> It is attached.
>    73's,
>                Peter
>
>
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> Heath mailing list
> Heath at puck.nether.net
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