Wow, the old FR-4. Bought one new from Ten Tec way back in '72 I
think. Put it next to my PM-3A and got a little selectivity with it.
It was a passive audio filter that worked tolerably well with the low
audio output of the PM series. Helped in a pinch. If in pristine
condition, heck, just get it to stare at! I would.
Clark
WA3JPG
On Mar 17, 2007, at 1:36 PM, Alan Sewell wrote:
> Dick,
>
> I am also interested if you are able to find any information on the
> FR-4. The only information I have seen is mention in a description of
> the S30 Signalizer, which contains an FR-4. It simply states "...a 400
> Hz passband CW filter with adjustable attenuation."
>
> 73,
>
> Alan N5NA
>
> http://www.tentecwiki.org
>
>
>
> KnoxCol@aol.com wrote:
>> Happy St. Patrick's Day Ten Tec Fans!
>>
>> I was at the Marshall, Michigan, Amateur Radio Swap this morning
>> and
>> found a pristine piece of TenTec gear that I had not seen before.
>> It is an FR-4
>> Audio Filter. I believe this goes with the PM series of radios.
>> Can anyone
>> in the group provide information on it and what it's worth might be?
>> Thanks and 73! de KD4BRL Dick O'Knox
>>
>>
>>
> _______________________________________________
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> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
>
Clark Savage Turner, J.D., Ph.D.
Professor of Computer Science
Cal Poly State University
San Luis Obispo, CA. 93407
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