[Amps] gettering question

[Carl]

12M is the problem band and removing 3-4 turns may move the resonance as it 
does with Dentrons. Since I dont use my 76PA on WARC (The LK-500ZC does well 
there) I havent tried it.

Carl
KM1H


----- Original Message ----- 
From: "Bob K6UJ" <k6uj at pacbell.net>
To: <amps at contesting.com>
Sent: Wednesday, March 28, 2012 11:43 AM
Subject: Re: [Amps] gettering question


> Carl,
>
> Thanks Carl,  I will be going thru it and plan to replace all the filter 
> caps, resistors, and the electrolytic.  I got this amp in a trade
> and although it has been converted to two 3CPX800's,  he didnt do anything 
> else to it.  Im pretty sure it still has the original filter caps
> so it definetely needs these replaced.
>
> I have another 76CA, my daily use amp,  which I have converted over two 
> two 3CPX800's, changed the filter caps plus the things you
> recommended and it is running great.
>
> BTW,  what WARC bands are safe to use with the Alpha 76's ?    If I 
> remember, there is one band I should avoid.
>
> 73,
> Bob
> K6UJ
>
>
>
>
> On Mar 28, 2012, at 7:12 AM, Carl wrote:
>
>> Id be more concerned about the PS if the filters havent been replaced. 
>> There are also a few resistors and a small electrolytic that change 
>> value/go leaky.
>>
>> An hour should be sufficient as that tube appears to age well if it isnt 
>> a well abused pull.
>>
>> Carl
>> KM1H
>>
>>
>> ----- Original Message ----- From: "Bob K6UJ" <k6uj at pacbell.net>
>> To: <amps at contesting.com>
>> Sent: Tuesday, March 27, 2012 11:48 PM
>> Subject: [Amps] gettering question
>>
>>
>>> With an amplifier that uses a pair of 3CPX800's,  like my converted 
>>> Alpha 76CA,  how long should I
>>> let it sit there heating the filaments before using,  when it hasn't 
>>> been used for 2 or 3 years ?   Couple of hours, 1 day, ?
>>>
>>> Bob
>>> K6UJ
>>>
>>>
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>
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