[TenTec] Argonaut 509/515 Filter Question

[Dennis Jones]

Clark,

Thank you

Pearl


On Feb 13, 2008, at 6:52 PM, Clark Savage Turner wrote:

> Pearl!
>
> No, I don't think so, but I'll look into my old files.  I know I have
> some old stuff, but I'm not sure about any PM2's.  I had a PM3a once,
> fine little box.  I'm looking, I'm looking!  Tomorrow I'll check the
> garage.
>
> Clark
> WA3JPG
>
> On Feb 13, 2008, at 3:10 PM, Dennis Jones wrote:
>
>> Hi Clark,
>>
>> Do you have any info on the Ten Tec Power Miter series
>> transceivers??  such as schematics and modifications, Have two of
>> them (PM-2B's) and they are totally different layouts, Boards, quite
>> interesting at best, some bozo get into it and changed a pot load of
>> parts, which drove me nuts for a while. Any suggestions?
>>
>> DJ       K6RCL    aka ( Pearl )
>>
>>
>>
>> On Feb 13, 2008, at 12:44 PM, Clark Savage Turner wrote:
>>
>>> Quick comment, Bill.  I found that replacement of the stock 4 pole
>>> filter with a tighter 8 pole filter still results in significant
>>> blowby.  I found that putting another 4 pole filter in an earlier  
>>> part
>>> of the circuit eliminated the blowby very well and left me with  
>>> plenty
>>> of signal.  I don't recall exactly where I stuck that extra 4 pole
>>> filter in there, but it was not far from the standard filter.
>>>
>>> Jerry makes a good point, by the way, you can tradeoff a bit of  
>>> width
>>> in the filter for much better ability to hear in some of the worst
>>> conditions.  A lesson hard learned in my shack.
>>>
>>> Clark
>>> WA3JPG
>>>
>>> On Feb 13, 2008, at 12:20 PM, Bill Miner wrote:
>>>
>>>> Has anyone replaced the stock filters with any of the Inrad units?
>>>> How did
>>>> the new filters work and how much trouble was it to wire the Inrads
>>>> into the
>>>> Ten Tec rig?
>>>>
>>>> The stock filters seem to have very wide skirts or filter blow- 
>>>> by or
>>>> maybe
>>>> both.
>>>
>>> Clark Savage Turner, J.D., Ph.D.
>>> Professor of Computer Science
>>> Cal Poly State University
>>> San Luis Obispo, CA. 93407
>>>
>>> _______________________________________________
>>> TenTec mailing list
>>> TenTec at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/tentec
>>
>> Dennis Jones
>> k6rcl at cox.net
>>
>>
>>
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>>
>>
> Clark Savage Turner, J.D., Ph.D.
> Professor of Computer Science
> Cal Poly State University
> San Luis Obispo, CA. 93407
>
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Dennis Jones
k6rcl at cox.net