The only person that I know who has a good mod for what you are talking
about is Dick Bryd. His mod works. All the others don't. I know because I
had a mod in my Alpha 76 that was supposed to work. I even used one
suggested by a fellow out in Texas I think it was. That was using a RF parts
plate choke instead of the Alpha choke. Guess what?? It detonated the plate
choke and cost me $30 for the Rf parts choke and anothe $40 for a new choke
wound by Alpha. So be very careful about using any so-called mod for the
warc bands on alpha amps. You can do some damage that you are not counting
on.
Joe K4TR
----- Original Message -----
From: "Joe Subich, W4TV" <w4tv@subich.com>
To: "'Andy Pfeiffer'" <andy.pfeiffer@magellan.aero>; <amps@contesting.com>
Sent: Tuesday, September 18, 2007 2:17 PM
Subject: Re: [Amps] Alpha 76 PI-EL modification for WARC bands
>
>> it tune on
>> 12 using 10 position but perhaps modification would be better.
>
> Be very careful using the Alpha 76 series amplifiers on 12 meters.
> ETO used a plate choke that was intentionally resonant around 26 MHz
> to prevent use of the amplifiers on 11 Meters. The amplifier has
> a well documented tendency to blow the choke on 12 meters.
>
> 73,
>
> ... Joe, W4TV
>
>
>
>> -----Original Message-----
>> From: amps-bounces@contesting.com
>> [mailto:amps-bounces@contesting.com] On Behalf Of Andy Pfeiffer
>> Sent: Tuesday, September 18, 2007 12:45 PM
>> To: amps@contesting.com
>> Subject: [Amps] Alpha 76 PI-EL modification for WARC bands
>>
>>
>> Hi there
>> Is anyone has modification to Alpha 76 PI-EL and Plate choke to put it
>> on 30, 17 and 12 Meters.
>> It tune on 30 using 20 position, on 17 using 20 position and
>> it tune on
>> 12 using 10 position but perhaps modification would be better.
>>
>> _______________________________________________
>> Amps mailing list
>> Amps@contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>>
>>
>
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