[HAM] Pipe organs?

[Metra Christofferson]

Hi, folks.

(I learned on a Hammond D152, S/n 1463 purchased by my parents on
12/17/1964, and I'm in the process of swiping it from my parents, which is
how I ended up on this list. Does anyone have a source for vaccuum tubes for
the D152, by the way? Just in case I need to make replacements?)

Anyway, the little church down the way has a pipe organ about 90 years old.
Through a long story, a few weeks ago they talked me into playing it -- no
one has played it since it was refurbished four years ago, and it wasn't
played much the previous 10 years either.   

I'm trying to find out who made it, but that is going to take me a while --
There isn't a name plate on it, so we'll have to did through files and see
if we can unlock the pipe room.  

When I play it without the sanctuary's sound system, both manuals are
"mostly" in tune (except for a few settings that are off).  The problem is
that when the sanctuary's sound system comes on, the organ's upper manual
goes significantly out of tune.  I live in a town of 5800 people, and it
would be really helpful if I could have some idea what to discuss with the
out-of-town repairman. 

Any help or suggestions would be greatly appreciated.

Metra