[Amps] Amps Digest, Vol 144, Issue 18

[Gary Smith via Amps]

Fwiw, I own a late and new from AES Las Vegas, Ameritron  Al-82.  Full 
power + read with a Wave Node wattmeter on all bands, 10 meters 
included.  This amp puts to rest the old saw as to "you don't need power 
on 10 meters".

No mods have been accomplished on it as I see no reason when it works so 
well.

Gary...wa6fgi


On 12/18/2014 9:00 AM, amps-request at contesting.com wrote:
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> Today's Topics:
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>     1. THE SKINNY ON MY AL-82 (Bill and Liz)
>     2. Re: THE SKINNY ON MY AL-82 (Vic Rosenthal 4X6GP/K2VCO)
>     3. Re: THE SKINNY ON MY AL-82 (Jim W7RY)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 18 Dec 2014 09:49:21 -0500
> From: "Bill and Liz" <magoo at isp.ca>
> To: <amps at contesting.com>
> Subject: [Amps] THE SKINNY ON MY AL-82
> Message-ID: <4BC9AC05CE8A4276AEFF1F7CB7132640 at Main>
> Content-Type: text/plain;	charset="utf-8"
>
> I recently tracked down the ham who had done work on my AL-82 as well as a second one purchased at the same time by another fellow who was forced by health out of ham radio.  I learned that right from the get go both amps had parasitic problems and hardly a day would go by without one or the other having an ?event? (hence the original owner had two of them!).  These amps date from the 90s-perhaps they were of the initial design before changes started being made.
>
> The Measures parasitic retro kits were installed in both amps and the problems immediately disappeared.  Both amps today have the same minor problem on 10M: extreme heating, discolouration and distortion of the 100 ohm paralleled resistors in the suppressors but no parasitic events.
>
> >From this information it would appear that I would not be wise to re-install the original suppressors, and, since I seldom run the amp over 400W on 10M anyhow, that I should ?let sleeping dogs lie? as it were.
>
> Thanks to all who came forward with ideas and advice.
>
> Bill VE3NH
>
> ------------------------------
>
> Message: 2
> Date: Thu, 18 Dec 2014 17:10:53 +0200
> From: Vic Rosenthal 4X6GP/K2VCO <k2vco.vic at gmail.com>
> To: amps at contesting.com
> Subject: Re: [Amps] THE SKINNY ON MY AL-82
> Message-ID: <5492EE7D.5000505 at gmail.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> What are the symptoms of an 'event'?
>
> On 18 Dec 2014 16:49, Bill and Liz wrote:
>> I recently tracked down the ham who had done work on my AL-82 as well
>> as a second one purchased at the same time by another fellow who was
>> forced by health out of ham radio.  I learned that right from the get
>> go both amps had parasitic problems and hardly a day would go by
>> without one or the other having an ?event? (hence the original owner
>> had two of them!).  These amps date from the 90s-perhaps they were of
>> the initial design before changes started being made.
>>
>> The Measures parasitic retro kits were installed in both amps and the
>> problems immediately disappeared.  Both amps today have the same
>> minor problem on 10M: extreme heating, discolouration and distortion
>> of the 100 ohm paralleled resistors in the suppressors but no
>> parasitic events.
>>
>>  From this information it would appear that I would not be wise to
>> re-install the original suppressors, and, since I seldom run the amp
>> over 400W on 10M anyhow, that I should ?let sleeping dogs lie? as it
>> were.
>>
>> Thanks to all who came forward with ideas and advice.
>>
>> Bill VE3NH _______________________________________________ Amps
>> mailing list Amps at contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>>