Sorry Steve - I sure don't have any to lend you!!
It is a pisser when you've been so careful to know how it is so you 
can get it back and then it doesn't!!
PatAt 08:15 PM 8/16/2010, you wrote:
>Pat,
>
>I really hate it when I take something apart after carefully studying it,
>and start to reassemble it only to realize that I'm not completely sure how
>it looked before I took it apart.  I would say it makes me tear out my hair,
>but I have so little left.
>
>Steve
>
>----- Original Message -----
>From: "Pat Byrne" <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Monday, August 16, 2010 18:35
>Subject: Re: Kevin's amplifier tuning cheat sheet
>
>
> > Agreed Steve - just my thoughts that changing tubes is something we
> > can competently do.  Another thought I had - pay really close
> > attention to how a something looks before you start working on
> > it!!  If I understand something closed and carefully open it I stand
> > a good chance of re-closing it!!!  maaybe that is obvious but I have
> > carelessly taken things apart and then had a hell of a battle getting
> > them back together!!  Not long ago the flushing mechanism on one of
> > our toilets fell apart.  I spent a really long time trying to figure
> > it out and I lost!!  Called our oldest son and he came by and had the
> > job done in two minutes!!!  And now that it is the way it is supposed
> > to be and I understand it, I'll be able to fix it myself the next
> > time!!  (Probably)!!
> > Thanks.
> > Pat, K9JAUAt 08:28 AM 8/16/2010, you wrote:
> >>Pat,
> >>
> >>I've changed many a tube, but I don't see any reason to do so while the
> >>811s
> >>are still working.
> >>
> >>Steve
> >>
> >>----- Original Message -----
> >>From: "Pat Byrne" <[log in to unmask]>
> >>To: <[log in to unmask]>
> >>Sent: Sunday, August 15, 2010 22:16
> >>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 At 08:48 PM 8/15/2010, you wrote:
> >> >>Tom,
> >> >>
> >> >>You don't need an additional meter--the ones you need to read are
> >> >>already
> >> >>on
> >> >>the amplifier.  I don't think I'm quite ready to change the tubes,
> >> >>especially for a $200 price, although I'll probably do so if I have to
> >> >>replace them.
> >> >>
> >> >>Steve
> >> >>
> >> >>----- Original Message -----
> >> >>From: "tom behler" <[log in to unmask]>
> >> >>To: <[log in to unmask]>
> >> >>Sent: Sunday, August 15, 2010 21:21
> >> >>Subject: Re: Kevin's amplifier tuning cheat sheet
> >> >>
> >> >>
> >> >> >    Steve:
> >> >> >
> >> >> >
> >> >> > Well, so far, your experiences come pretty close to mine.
> >> >> >
> >> >> > Like you, I want to get someone sighted over here sometime with a
> >> >> > meter,
> >> >> > and
> >> >> > a familiarity with the amp and its characteristics, so I can
> >> >> > determine
> >> >> > how
> >> >> > I'm actually doing.
> >> >> >
> >> >> > All of this adds up to why I bought the 572B's.
> >> >> >
> >> >> > I figured that with more robust tubes, I at least have less of a
> >> >> > chance
> >> >> > for
> >> >> > all heck to break loose if I happen to make a blunder in the tuning
> >> >> > process.
> >> >> >
> >> >> > 73 from Tom Behler:  KB8TYJ
> >> >> >
> >> >> > ----- Original Message -----
> >> >> > From: "Steve Dresser" <[log in to unmask]>
> >> >> > To: "tom behler" <[log in to unmask]>
> >> >> > Sent: Sunday, August 15, 2010 8:34 PM
> >> >> > Subject: Re: Kevin's amplifier tuning cheat sheet
> >> >> >
> >> >> >
> >> >> > Tom,
> >> >> >
> >> >> > Since this is my first tube amplifier, I attribute my success more
> >> >> > to
> >> >> > luck
> >> >> > than experience.  Nevertheless, a few things seem clear to me:
> >> >> >
> >> >> > First, as long as you try to run the amplifier within specified
> >> >> > limits,
> >> >> > you
> >> >> > probably won't get into trouble.  For that reason, I avoid driving
> >> >> > it
> >> >> > with
> >> >> > more than 70 watts of continuous carrier.
> >> >> >
> >> >> > Second, things break down in a hurry if the plate current is high.
> >> >> > Therefore, I adjust the plate current so the amplifier is putting
> >> >> > out
> >> >> > maximum power, which means the output circuit is in resonance, which
> >> >> > means
> >> >> > the plate current is at minimum.
> >> >> >
> >> >> > Finally, I worry about the grid current which, from what I
> >> >> > understand,
> >> >> > should be high enough to keep the finals biased properly, which
> >> >> > means
> >> >> > that
> >> >> > I
> >> >> > adjust it to the point where the output power begins to decrease.
> >> >> >
> >> >> > Thus far, I haven't blown anything up, and nobody has ever reported
> >> >> > that
> >> >> > my
> >> >> > signal is non-linear, which I hope means that I'm operating things
> >> >> > pretty
> >> >> > close to where they should be.  One of these days, I'll be lucky
> >> >> > enough
> >> >> > to
> >> >> > have someone sighted around to read the meters and see how close I
> >> >> > really
> >> >> > am.  Meanwhile, I'll just be alert for smoke, and hope I don't smell
> >> >> > any.
> >> >> >
> >> >> > Steve
> >> >> >
> >> >> > ----- Original Message -----
> >> >> > From: "tom behler" <[log in to unmask]>
> >> >> > To: "Steve Dresser" <[log in to unmask]>
> >> >> > Sent: Sunday, August 15, 2010 19:59
> >> >> > Subject: Re: Kevin's amplifier tuning cheat sheet
> >> >> >
> >> >> >
> >> >> >>    Well, Steve, you are much more experienced than I am with these
> >> >> >> things,
> >> >> >> and my thought at this point would be:  "If your strategy works,
> >> >> >> don't
> >> >> >> change it.".
> >> >> >>
> >> >> >> I have to admit that I still get a bit apprehensive when doing the
> >> >> >> tuning
> >> >> >> procedure, but I just take my time, and work through each step,
> >> >> >> giving
> >> >> >> things periodic breaks in the process and, so far, so good.
> >> >> >>
> >> >> >> Tom Behler:  KB8TYJ
> >> >> >> ----- Original Message -----
> >> >> >> From: "Steve Dresser" <[log in to unmask]>
> >> >> >> To: "tom behler" <[log in to unmask]>
> >> >> >> Sent: Sunday, August 15, 2010 5:51 PM
> >> >> >> Subject: Re: Kevin's amplifier tuning cheat sheet
> >> >> >>
> >> >> >>
> >> >> >> Thanks, Tom.  I have considered connecting a VCO across the
> >> >> >> amplifier's
> >> >> >> meters so I could actually read the plate and grid current, but my
> >> >> >> "maximum
> >> >> >> smoke" method seems to work, and laziness prevails.  Nevertheless,
> >> >> >> it's
> >> >> >> good
> >> >> >> to know the actual current info.
> >> >> >>
> >> >> >> Steve
> >> >> >>
> >> >> >>
> >> >> >
> >> >
> >