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P/0
440A KTU
TRANSISTOR
AMPLIF IER
CKT
Q IS, Ql6
R2 4
Cl9
CR9
R46
RTI
CR8
T
RT2
R47
CRIO
H IGH GROUP
L IMITER
TRANS ISTOR
CKT Ql8
LOll GROUP
L IMITER
TRANS I STOR
CKT Q
17
R42
R 4 4
R 45
R43
-24
L4
L3
L2
Ll
H2
HI
H3
Ll
L3
HI
L4
HI
L3
H3
L4
H3
L3
HI
H3
Ll
H2
-
2
4
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Fig. 1 4-Condensed Functional Schematic of 440A (MD) KTU (TOUCH-TONE Adapter Circuit)
821
TO
460A
KTU
TO
4248/C
KTU
460A
KTU
TO
PO\IER
SUPPLY
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