![](http://pdfasset.owneriq.net/f/00/f006931b-4b27-4810-b5f5-e3acffe68ee0/f006931b-4b27-4810-b5f5-e3acffe68ee0-bgb4.png)
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