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The Barney Oliver Audio Amplifier
Resistors R17 and R19 as well
R20 are dividers to develop the
The
10V
_-I:
followers Q7 and
CR15 and CRI6 provide short circuit pro
tection and transistors Q9 and QI0
emitters
of
and Q8
from shorts betw een the 10 and 20 volt
R1B and
as
± lOY
reference.
are
taken
from
emitter
reverse voltage
The 10 and 20 volt
essentially ripple free.
The maximum
various
±
the
±20V
40V
±50V
Circuit Description
ar e
and
of the
l8 ma
70 ma
3 amps
0.5 amps
5-3
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