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
>