1

Vcc
2
1 3
R14
POT

R4 R5
R R R7
Vcc R R12 2
1 3

Vcc R16
R R1 Vcc
R13 (POT) 7 1 R8 8 4
3 3 R10
2 6 Q1 1 6
2 NPN 2 7
R2 R9 5

4 5 4

Vcc - BAR Vcc_BAR
R23 Vcc_BAR C1 C2
manganin R18 R11
R
1 2 3
2 Vcc
1 3
R19 R20 R21