TTL National Semiconductor DS7524N Dual Core Memory Sense Amplifier

RS485 Module MAX485 TTL RS-485 for Arduino Raspberry PI

NATIONAL SEMICONDUCTOR LF442CN Dual Op Amp, 1MHz, 8-Pin DIP8 x2 CHIPS PER SALE

10 CD4093BCN / MM5693BN Schmitt 2 input NAND National Semiconductor 4093 4093B

12 x LF356N JFET OP AMP, 8 PIN DIL, genuine National Semiconductor

National Semiconductor 2 x DS75494N SN75494N Display Driver Interface IC DIP16

Fujitsu MB7142H Fast 55ns 4kx8 TTL Schottky PROM (2 pcs)

LM6132BIN Dual OPAMP 8PIN DIL National Semiconductor part