Processors and other support ICs
IDM2901AJC 4-Bit Bipolar Microprocessor Slice Used on Atari Vector games such as Tempest, Battlezone & Red Baron 40 Pin Ceramic DIP Package
HD63B09P 2 Mhz 8-Bit Microprocessor 40 Pin DIP Package Pin compatible with 6809
6502A 8-Bit Microprocessor CPU Used on many arcade boards. 40 Pin DIP Package Refurbished used pulls , may have minor cosmetic blemishes.
6532 Processor Refurbished used pulls, may have cosmetic blemishes. Ram, I/O Timer (riot)40 Pin Dip Package Used on Q*Bert sound board and many other boards