This unit is a Signetics Corp 74F269N-EG98506-9018KD Integrated Circuit..

***MPN 74F269N-EG98506-9018KD
***OEM Signetics Corp
***SKU*** 23494

This unit is a Signetics Corp 74F377N-2103Q60-9018VE Integrated Circuit.
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***MPN 74F377N-2103Q60-9018VE
***OEM Signetics Corp
***SKU*** 23493

This is a Dale XO-52B 20.000M Integrated Circuit – Half Size Clock Oscillator Enable/Disable
***MPN XO-52B 20.000M
***OEM Dale
***SKU*** 23492

This unit is an Advanced Micro Devices AM27C512-150DC 512 Kilobit CMOS EPROM.
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***MPN AM27C512-150DC
***OEM Advanced Micro Devices
***SKU*** 23532

This unit is an Intel Corp D8259A Programmable Interrupt Controller.
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***MPN D8259A
***OEM Intel Corp
***SKU*** 23531

This unit is an Intel Corp D8284A CPU System Clock Generator.
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***MPN D8284A
***OEM Intel Corp
***SKU*** 23530

This unit is a National Semiconductor DS8820J Dual Line Receiver.
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***MPN DS8820J
***OEM National Semiconductor
***SKU*** 23525

This unit is a Fairchild 74LS112PC Dual JK Negative Edge Triggered Flip-Flop.
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***MPN 74LS112PC
***OEM Fairchild
***SKU*** 23524

This unit is an Intel Corp D27C020-150V10 UV-Erasable PROM (EPROM).
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***MPN D27C020-150V10
***OEM Intel Corp
***SKU*** 23520

This unit is a Texas Instruments SNJ54HC04J Integrated Circuit.
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***MPN SNJ54HC04J
***OEM Texas Instruments
***SKU*** 23489

This unit is a Maxim MAX232EPE +5V-Powered, Multichannel RS-232 Drivers/Receivers.
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***MPN MAX232EPE
***OEM Maxim
***SKU*** 23519