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VOH
SOD
OUTPUT
VOL
I
DATA
"0"
DATA"'"
Figure
25.
Tape Interface Data Recording Scheme
0----
~--~~--~------------~~~--------------~------------------~soo
8085
o
">--------=-----ISIO
NOTES:
Al
-
A4:
% LM324 QUAD
OP
AMP
01 - 02:
ANY
LOW
CURRENT DIODE
ALL
RESISTORS
±5%
Figure
26.
One
Chip
Magnetic
Tape
Interface
Schematic
A1-39
TIME