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CIRCUIT TOPOLOGY COVERED BY U.S. PATENT N° 4229706
Qxx

???? MPS U55

R36

4.7k R35 100u

- 55 V

CR4

CR5

C14

10 R33 200 R22 R13 1meg C12 200p
~ -20V 3
LF 412CN (a)

.01u
8

7- 420 REV.C
62 R23 470 R20 200p C9 100p Cxxx 100 R30
TIP 31C Q14 NEC 2SD555

C13
1

2 4

100p C10 10meg R32

Q10

Q9

Q8

Q7

Q6

.1u C11 .1u Cxyx

3010 R31 CR3 301 R21

0.2 R28

0.2 R27

0.2 R26

0.2 R25

0.2 R24
5A AGC

2.2 R39 K2 2u .001u C2 C0 .1u

45 V

100p Cxxy

470 R19 100u C7

1k
MPS U55
Q13

R29

R34 (J502)
output

1k R38 CR2
Cxyy 100p

Q12

Cyxy .1u R10 C4 .1u
LF 412CN (b)

R18 470

R14 1k

R7 2u K1 R37 2.2 .001u C1 10 R1

5A AGC

3320

R12 10meg 100p
7

R9 100 200p C6 R15 470 100p Cyyy
Q11 Q5

R6 0.2
Q4

R5 0.2
Q3

R4 0.2
Q2

R3 0.2
Q1

R2 0.2

6

4

45 V

C5

5

R16 8 ~+20V 62 .01u C200 10

R11

CR1,CR4: CR2,CR3,CR5:

1N5250B 1N4148

TIP31C

MPSU55

R8 2200

CR1

C3 220u

b c e

e b c

+ 55 V

SUMO NINE PLUS (later production)
AMP.BD. 035-0199 REV.C