Tektronix 221 Instruction Manual page 56

4
ht p ://m
R352
R 4 1 8
C365
1 2 3
Fig. 9-2. A1 —Input circuit board (back) Sl\l B020475 & above.
17 18 19 20 21 22
in 16
ts
o c
S213
R213
C362
r r n
ID
M m
S738
R738
R112
4 5 6 7 8 9 10 11 12
REV D, FEB 1979
23 24 25
C234
C233
plOO
R100
13 14 15
1 5 7 3 - 2 4
Note: Shield Removed