I'll bet that amp was sending RF back into the power supply and messing up
the synthesizer. I ran the 160-watt amplifier on a separate supply, and of
course, it was outside the box, which probably kept me from having that
problem.
Steve
----- Original Message -----
From: "Steve" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, August 05, 2011 10:52
Subject: Re: back on the list again
> Wow, sounds like a similar setup to mine, without the fan. But, I had an
> amp and power supply built into a box, with the synthesizer on top all
> driven by the TR-22C.
>
> The only problem I had was when I connected the rig and ran the amplifier,
> it created a birdie 330KHz away which keyed the 146.61 repeater when I was
> running on 146.94. If I ran the rig on batteries, the birdie would go
> away.
>
>
> ----- Original Message -----
> From: "Steve Dresser" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, August 04, 2011 8:39 PM
> Subject: Re: back on the list again
>
>
>> Butch,
>>
>> I had a friend modify a TR-22C so I could use it with a GLB synthesizer.
>> He
>> removed the headphone jack and mounted a DIN connector in its place, and
>> mounted the headphone jack on the right side of the radio. I built a
>> power
>> supply and mounted the mobile bracket for the TR-22C on top of the box,
>> and
>> that was my main station for a while. I used the 10-watt Drake power
>> amplifier to get enough power to drive a KLM 160-watt amplifier for
>> putting
>> out a big signal.
>>
>> It all worked very well until I got the bright idea to put a
>> squirrel-cage
>> fan on top of the KLM to cool it down. That wouldn't have been a bad
>> idea
>> except that I was using a cord with a pair of alligator clips to run the
>> fan, and one of the clips touched the heat sink on the amplifier. The
>> result: my home-brew power supply got toasted. Somehow, the radio and
>> synthesizer survived, but I think the amplifier died. After that, I
>> decided
>> it was time to get a real radio, which was much more convenient, but not
>> nearly as much fun.
>>
>> Steve
>>
>> ----- Original Message -----
>> From: "Butch Bussen" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Thursday, August 04, 2011 13:57
>> Subject: Re: back on the list again
>>
>>
>>> Remember the glb synthesizer boxes. You added these boxes to your
>>> crystal rigs and made them a synthesized radio. pagic!!!
>>> 73
>>> Butch
>>> WA0VJR
>>> Node 3148
>>> Wallace, ks.
>>>
>>>
>>> On Thu, 4 Aug
>>> 2011, Dave Marthouse wrote:
>>>
>>>> Back in 1978 when I was first licensed my first rig was a used Drake
>>>> TR22.
>>>> It had 6 crystal positions, a bullet shaped mic with a coil cord,
>>>> leather
>>>> caring case and ran on 10 aa nicad batteries. I sold the radio a few
>>>> years
>>>> later. I had since upgraded my 2 meter station to a WE800 from Wilson.
>>>> That was one of the first if not the first portable synthesized rigs
>>>> for
>>>> 2
>>>> meters. I remember when talking to people on the local repeaters when
>>>> you
>>>> wanted to go to another frequency the question was whether you were
>>>> crystal
>>>> or synthesized. I would guess that synthesized rigs on 2 meters had
>>>> maybe
>>>> less than 50% penetration into the market at that point. Those were
>>>> fun
>>>> days.
>>>>
>>>>
>>>> Dave Marthouse N2AAM
>>>> [log in to unmask]
>>>>
>>>>
>>>
>
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