Specifications

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RESISTORS
SWITCHES
INTEGRATED CIRCUITS
Ref.No. Value (ohms)
Wattage
Tolerance ( %) R/S Part No. Material
R1 100 1/2 ±5 Carbon
R2 3.9K 1/6 ±5 Carbon
R3 1.5K 1/6 ±5 Carbon
R4 10K 1/4 ±5 Carbon
R5 15K 1/4 ±5 Carbon
R6/7 10K 1/4 ±5 Carbon
R8/9 4.7K 1/4 ±5 Carbon
R10 75K 1/6 ±5 Carbon
R11 24K 1/6 ±5 Carbon
R12 220 1/4 ±5 Carbon
R13 8.2K 1/4 ±5 Carbon
R14 6.8K 1/4 ±5 Carbon
R15/16 56K 1/4 ±5 Carbon
R17 15K 1/4 ±5 Carbon
R18 1.5M 1/4 ±5 Carbon
R19 4.7K 1/4 ±5 Carbon
R20 10K x 8 1/4 ±5 Resistor Array
R21 4.7K 1/4 ±5 Carbon
R22/23 4.7K 1/6 ±5 Carbon
R24 100K 1/4 ±5 Carbon
R25 4.7K 1/4 ±5 Carbon
R26 100K 1/4 ±5 Carbon
Ref. No. Description R/S Part No. Mfr’s Part No.
S1 RESET SW 187010040A
S2 POWER SW 183110240A
S3 CHANNEL SW 183110280A
Ref. No. Description R/S Part No. Mfr’s Part No.
U1 MC6803G or (MCU)
HD6803P
MOTOROLA
HITACHI
U2 SN74LS373N or (D-LATCH)
MB74LS373M
MOTOROLA
FUJITSU
U3 MB8364M (MASK ROM) FUJITSU
U4 SN74LS155N or (DECODER)
MB74LS155M or
HD74LS155P
MOTOROLA
FUJITSU
HITACHI
U5/6 SN74LS367AN or (DRIVER)
MB74LS367AM or
HD74LS367AP
MOTOROLA
FUJITSU
HITACHI
U7
SN74LS245N or (TRANSCEIVER)
MB74LS245M
MOTOROLA
FUJITSU