This is the 1 pages manual for hammond ao 28 preamp b3 c3 layout.
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// POWER
/ TRANSFOIMER
/ T7
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TOP VIEW OF EXPRESISHONH
CONTROL UNIT WITH
W
nus pdnnon or TERMINAL
PANEL owrmznr m AO-ZB-I
r AMPLIVIERS wm-g NO CODE
G~ LETTERQS snown AY man-r)
EXPRESSION CONTROL
UNIT sTAYaz PLATE
TERMINALS
PORTION or TERMINAL PAN-3.
m AO-ZB-l AMDLIFIERS Wm:
NO coo: LETTER.
a I
R62
_ IPERCUSSION outwr
3 ramsronm
g
THIS ED or TEMINAL
PANEL N M157 CEASSIS
|
|
THESE COMDONENTS IN 3|
_ AMPLIFtHSEWTN NO com:
LETT Y.
PERCUSSION
MATCHING
TRANSFORMER
RESISTORS AND CDNDKN$ER5
SHOWN DASHED ARE ON REVERSE
SIDE or FAN'EL.(FARTHESY mom
was socxz'rs)
.
BK
Inn
r-I-
YI-ESE WIRE: m Ao-zo
AMPLIFIERSIWITH NO
cone LETTER) ONLY.
PERCUSSION
INPUT
TRANSFWNER
1
T5
o 9 o
HI
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FIGURE ZS-UNDERSIDE OF PREAMPLIFIER-TYPE AO-28
MODEL BB.C3,RT3 CONSOLES