A-100 line-out

[Bill1991@aol.com]

Presumably, Keyboard mag has an article from back in 1976 (?) on installing a
line-out jack on a B-3, but my library doesn't go back that far. Could
anybody post that info here (for an A-100)? Specifically, which terminals to
tap, and how much to pad the output? I'll be sending the signal to a Pro-3
(until I can find a cheap 142...).

Also, if I want to temporarily remove the amplifiers and speakers in the
A-100, what do I need to install for an AC receptacle (since it's on the main
amp)?

Thanks in advance...

Bill

PS how can I check for bad preamp tubes without replacing them all?
Everything sounds sorta okay now, except for a little harmonic distortion,
but my only frame of reference is an XB-2....