Parts Lists; Second Serial Interface Option; Parallel I/O Interface Option - NorthStar HORIZON Manual

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SECOND SERIAL INTERFACE OPTION (HRZ-SIO) PARTS LIST
1488 IC's
1489 IC's
8251 IC
transistor, 2N3904
14-pin IC sockets
16-pin IC sockets
28-pin IC socket
14-pin DIP headers
16-pin DIP header
5.6K resistors 1/4 Watt 5%
4.7K resistors 1/4 Watt 5%
lK resistor 1/4 Watt 5%
lK resistor 1/2 Watt
560 ohm resistor 1/4 Watt 5%
220 ohm resistor 1/4 Watt 5%
470pf ceramic disc capacitors
2S-pin connector'
4-40x3/8" machine screws
#4 lock washers
4--40 nuts
PARALLEL I/O INTERFACE OPTION (HRZ-PIO) PARTS LIST
74LS74 IC
74LS373 IC's
7437 IC
14-pin IC sockets
23-pin IC sockets
14-pin DIP header
2.2K resistor 1/4 Watt 5%
330 ohm [E3istors 1/4 Watt 5%
220 ohm resistors 1/4 Watt 5%
15-pin connectors
15-pin plugs
15-pin plug hood assemblies
4-40x3/8" machine screws
#4 lock washers
4-40 nuts
North Star HORIZON Computer