Dual 721 Schematic

Page 1

MM EDS 1000-2

Current measuring bridge
Pom de mesure d»: courant

f 9
3 4 Lm on an T 9
W -"V R23 327 301728
J O M 2.2 10 k
1'. I'M 9 100 L4
1mm urn-t \
Conn-t & m R 10 T 7
100 8C 338
T 8
R 6 SF 245 C
270 7
p '
T 3
8C 338 T 4 BC 338 T 5 BC 338 8C 338 DR 29 .
g r 11 7 s 22 k
O--4 X -G t )( Q
c 4 M "N \ '10 '1
50 i4 33 1/3 Upm
WI 2 .1 39 0'
[J 27:) 1 UM ? 1 I. u U I
R 9 R 12 R 16 R 17
100 100 68 100
D 9 D 11
AA 143 D ,0 AA 143 012 s Wfl o
08 SZ AA 143 AA 14332 D ,3 820k
ZPD 7.5 1 N 4148
8: 8 100 R 15 4, i J-Mfi ,
100 100 -
.1- 1 Drehzahlschalter
. A i C 9 --- Platter speed switch R 32 U
7 n 13 1 101.1 . 10% ' Commutateur de 11119558 3 i 33 k
C 51 l R 14 500 C 45 Upm
v -- 0.068 p R 27 330 1 )A _
20 ~ 2.21: 1 C8 331131.19". 0
1 ' 1 47 1. """' R 2° 11 19
o 51 1 l y 910 2 k
-~" BY __c 52 " A
183 -0.001: [jTOJZSA k 4 ,5. _ 1o
bl U"
300 Von dcr Bestuckungsscite gcschcn $238 $33 :22:
R 52 As seen trom the top side 145 up...)
Anderungen vorbehalten 2] k V" 1 C0"? elements Transistoren von der AnschluBseite gesehen
Alterations reserved 110 V _ 110,130 v Transistors as seen from the connecting side
Sous reserve de modifications fix - 220/240 v Transistors vus du cOté dos connex10ns
10 n , B S > r
220 v H / a : fl\ ' {if-h * B
E . . C 0" .16 Q ,_r:=c
Spannungen gemessen mit Meflmstrument (7 - 1O MOhm Emgangswiderstandi gegen Masse BC 172 B F 245 C r; 3 E
Voltages measured with measuring instrument (7 - 10 MOhm input resistance) to grOund BC 252 B 8 BO 135
Tensions mesurées avec instrument de mesure (7 - 10 MOhm resistance d'entrée) contre masse 8C 338
- 71- - _ _ a - _ fl fl _ Ausgabe1/Marz1976
R 2 1 6 22 5 9 10 12 23 1O 24 26 26 7. 29 27
51 52 a 27 a 11 1413 15 11 1s 33 3021 20 19 31 324
1 2 3 4 s o 7 s 11
c 51 52 V 7 7, 7 , v > I J

Dual Gebrflder Steidinger 7742 StGeorgen/Schwarzwald 2:32:313723?