IMS (Industrial MicroSystems) 8Kx8 Static RAM board for Altair, IMSAI, S-100

S-100 backplane motherboard bare PCB 9 slot (for Altair/IMSAI)

Large Lot of 150+ Vintage ICs EPROMs Logic Chips Intel Motorola NEC TI Ceramic

Vintage Circuit Board Gold ICs 2N2920 2N6790 Component Dense

(4) EtronTech EM51256C-20P Parallel SRAM ICs 256Kb (32K x 8bit) RAM Memory DIPs

Vintage Zilog Z80 CPU Circuit Board Gold ICs Boeing Aerospace Module 69-75990-17

Micropolis S-100 Floppy Disk Controller Card Vintage Altair IMSAI Micropolis FDC

NOS Morrow MIS S-100 20 Slot Backplane PDC Motherboard 1977 Altair IMSAI Board