Tube Amps / Music Electronics
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|previous: Erik M. Wood Has anyone ever heard of a company ... -- 7/18/1997 3:21 PM|
|7/19/1997 9:26 PM|
|S.Fillipp||Re: Anyone heard of Bogen Amps?|
You bet! I'll bet three quarters of the
small p.a. systems ever installed in
schools, churches,and the like used
Bogen amps. I used to play in a garage
band in high school that used one for
an organ amp, of all things. Most of the ones
I ever saw were less than 50 watts, but they no
doubt made bigger ones.
The 70 volt tap is used for distributed
speaker systems such as in a school where
you have a speaker in every classroom, or
lots of small speakers spread around a
large room. Each speaker would have a transformer
that matched the output of the amp to
the speaker. I don't think it was ever used
to drive separate amps. This is still
pretty much the way that's done - look at
most small p.a. mixer/amps intended for this
type application, and chances are you'll find
a 70V output along with the usual speaker outputs.
I don't think this output is of much use otherwise.
Schematics...don't know about that - there's
an article by Joe Jasniewski that addresses
conversion of P.A. and integrated amps into guitar amps
If you haven't seen it, check it out, it's very
informative and has lots of ideas on what to do
with this kind of iron.
His e-mail address is at the bottom of his
article - as many of these types of amps as he
has probably seen, he may be of some help.
Sounds like fun! Good luck, Steve Fillipp
|Steve M. Hi,|