[Heath] [Heathkit] Unknown accessory board in SB-101

[Ken, W8EK]

Hi Sandy,

It is a speech processor.  I used one in my SB-102 years ago.  It was 
not as effective as some of the RF processors today, but gave about a 
3 to 4 db increase in "talk power" which was especially significant 
for mobile use, and from the travel trailer, when every db counted.

73,

Ken, W8EK


Alexander N. Gerli wrote on 11/19/2015 5:55 PM:
> Hi, folks!  received a nice-looking SB-101 today, and it appears clean so
> far. I have a surprise too: there's a nice looking little PC Board mounted
> to a small aluminum subchassis and this is held in place by one of the
> screws in the LMO case. I see a small toggle switch and a small screwdriver
> pot on the little PC Board. The label reads
>
> R P Electronics
> Champaign IL 61820
> Model 3.30
> S/N 00408
>
> Since it's wired to several places on the Modulator Circuit Board, I'm not
> certain what it does. Does anyone on the List know about this company and
> what this accessory Board's function is? I'm guessing a speech processor,
> maybe?
>
> ​73,  Sandy AC1Y​
>
>
>
>
> Alexander N. Gerli, Sr.
> 548 Allred Mill Road
> Mount Airy, NC 27030-2202
>
> Scotsmen walk about 900 miles each year.
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