[Amps] Anyone have a 160M Tank Toroid for a Alpha PA70 or PA70V?

[Jim Barber]

With some patience and extrapolation you *might* be able to divine the 
number of turns from this:

http://www.rfconcepts.com/ETO-Alpha-PA-77-160m-Addition

I'll apologize for not opening mine; one of them has the mod but they're 
in storage after a move and I'm far too lazy!

73,
Jim N7CXI

On 8/19/2011 9:20 AM, Mike & Becca Krzystyniak wrote:
> Thanks Carl... I will use the 80m core design as the baseline.
>
>      What I need is a target inductance for the 160m core.  I think a turns
> count from the 160m core on an early model 70 or 77 series amp from Alpha
> would get me close.
>
>      Does anyone happen to have a PA-70/V or 77 series amp that can tell me
> their turns count on the 160m tank coil?
>
> Thanks...
>
> Mike K9MK
>
>
> -----Original Message-----
> From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On
> Behalf Of Carl
> Sent: Wednesday, August 17, 2011 11:41 AM
> To: Mike&  Becca Krzystyniak; 'Amps Amps'
> Subject: Re: [Amps] Anyone have a 160M Tank Toroid for a Alpha PA70 or
> PA70V?
>
> I would think the toroids and the coil is the same since the 3 tubes are
> similar and on 160 nothing is that critical. The toroid itself is likely a
> Micrometals #2 mix. Go to Amidon and get one of the same size, use Scotch 27
>
> tape and Teflon wire.
>
> Carl
> KM1H
>
>
>
> ----- Original Message -----
> From: "Mike&  Becca Krzystyniak"<k9mk at flash.net>
> To: "'Amps Amps'"<amps at contesting.com>
> Sent: Wednesday, August 17, 2011 10:55 AM
> Subject: [Amps] Anyone have a 160M Tank Toroid for a Alpha PA70 or PA70V?
>
>
>>    Already talked with the folks at Alpha with little help, so I'm trying
>> here.
>>
>>    Does anyone have a 160M tank coil (the wound toroid) from an old Alpha
>> PA70 or PA70V they want to sell?
>>
>>    Also, would anyone know if the 160M tank toroid for the PA70 series and
>> the 77 series amps might be the same?
>>
>> Thanks in advance.
>>
>> 73's  Mike
>>
>>
>>
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