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Date: | Wed, 18 Aug 2010 14:57:07 -0400 |
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One way to speed up that process is to ground the plate cap of the tube with
a screwdriver. Just make sure you don't become part of the ground path, and
that you do this with the amplifier unplugged.
Steve
----- Original Message -----
From: "Ed Malmgren" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, August 18, 2010 13:30
Subject: Re: Kevin's amplifier tuning cheat sheet
> You can't plug 811 tubes in wrong but be sure to get the voltage
> discharged before attempting that job.
> sometimes it takes a while for the bleeder resistors to discharge the caps
> in the supply. 73 to all Ed K7UC
> ----- Original Message -----
> From: "Gerry Leary" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, August 18, 2010 5:35 AM
> Subject: Re: Kevin's amplifier tuning cheat sheet
>
>
>> Hey Tom, I say don't ever become afraid of Mechanical things. The worst
>> you
>> can do is break them and all sighted people do that to.
>> ----- Original Message -----
>> From: "tom behler" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Monday, August 16, 2010 6:25 AM
>> Subject: Re: Kevin's amplifier tuning cheat sheet
>>
>>
>>> Pat:
>>>
>>> Oh, I know they are relatively easy to swap in and out, which is why I
>>> say
>>> that once I get the hang of the procedure, I'm sure I'll be fine.
>>>
>>> And, I think that would go for most other folks on the list too.
>>>
>>> What you say here is important, so others like me are encouraged, and
>>> don't
>>> get intimmodated about trying.
>>>
>>> 73 from Tom Behler: KB8TYJ
>>>
>>> ----- Original Message -----
>>> From: "Pat Byrne" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Sunday, August 15, 2010 10:16 PM
>>> Subject: Re: Kevin's amplifier tuning cheat sheet
>>>
>>>
>>> In the old days!! when we had tubes to change it was never a
>>> problem. Occasionally tubes had to be neutralized - that was
>>> something that as a blind man I couldn't do. It involved watching
>>> grid current and making adjustments to stop that current from
>>> showing. Only a problem with triodes and no longer an applicable
>>> concern.
>>> Not to demean anyone's knowledge or abilities but the tubes will only
>>> go in the "right" way and the plate cap just presses on to the top of
>>> the
>>> tube.
>>> Hope this helps.
>>> Pat, K9JAu
>>>
>
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