U051 - LM340T12 3-Terminal Positive Regulators, 12V
U052 - LM320T12 3-Terminal Negative Regulators, -12V
U053 - LM340T5 3-Terminal Positive Regulators, 5V
U054 - RC4558N Dual General-Purpose Operational Amplifier
U055 - CA3083 General Purpose High Current NPN Transistor Array
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U101 - CDP1802ACE
U102 - CD40106BE Hex Schmitt Trigger
U103 - CDP1866CE 4-Bit Latch and Decoder
U104 - CDP1867CE 4-Bit Latch and Decoder
U105 - CD74HC138E
U106 - F4013BPC Dual D-Type Flip-Flop
U107 - F4069UBPC Hex Inverter
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U151 - SCN2671A Programmable Keyboard and Communcation Controller (PKCC)
U152 - CD4051BE Single 8-Channel Analog Multiplexer/Demultiplexer
U153 - CD4051BE Single 8-Channel Analog Multiplexer/Demultiplexer
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U201 - CDP1852CE Byte-Wide Input/Output Port
U202 - CDP1852CE Byte-Wide Input/Output Port
U203 - CD4058BE
U204 - CD4073BE
U205 - CD4011BE
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U251 - TMS99532NL Frequency-Shift-Keyed Modem
U252 - RC4558N Dual General-Purpose Operational Amplifier
U253 - CD4015BE Dual 4-Bit Static Shift Register
U254 - CD22859E Dual-Tone Multifrequency Tone Generator
U255 - RC4558N Dual General-Purpose Operational Amplifier
U256 - CD4053BE Triple 2-Channel Analog Multiplexer/Demultiplexer
U257 - H11AA1 Optocoupler, Phototransistor Output, AC Input
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U351 - CDP1852CD Byte-Wide Input/Output Port
U352 - CDP1852CD Byte-Wide Input/Output Port
U353 - CDP1852CD Byte-Wide Input/Output Port
U354 - unpopulated
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U401 - CDM6116AE3 2KB Static RAM
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U451 - CDP1852CD Byte-Wide Input/Output Port
U452 - CA3083 General Purpose High Current NPN Transistor Array
U453 - CA3083 General Purpose High Current NPN Transistor Array
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U501 - SCN2672B Programmable Video Timing Controller (PVTC)
U502 - CRT8002B CRT Video Display Attributes Controller Video Generator (VDAC)
U503 - SN74LS75N
U504 - SN74LS161AN Synchronous 4-Bit Binary Counters
U505 - SN74LS00N
U507 - SN74LS04N
U508 - SN74LS123N
U509 - DM74LS74AN
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U701 - CDM6116AE3 2KB Static RAM
U702 - CDM6116AE3 2KB Static RAM
U703 - AM2764
U704 - AM2764
U705 - unpopulated
U706 - CD4556BE CMOS Dual Binary to 1 of 4 Decoder/Demultiplexers
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U801 - SN74LS00N
U803 - CD4011BE Quad 2-Input NAND Gate
U806 - DM74LS74AN
U807 - SN74LS00N
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U901 - MC1489P
U902 - MC1488P
U903 - CD4053BE Triple 2-Channel Analog Multiplexer/Demultiplexer
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