1990s HP 3488A HP-IB Programmable Switch/Control Unit - Parts/Repair no card

1990s HP 3488A HP-IB Programmable Switch/Control Unit - Passes Self Test

Vintage 1980s Micronta 7-Day Programmable Timer Cat. 63-889 Radio Shack Works

1 x Genuine P8259A 8259 AMD 8086 8088 Programmable interrupt controller IC

1 x SCN2651C Genuine SIGNETICS Programmable communications interface 2651 IC

Vintage Radio Shack Programmable Control center & Timer-Works!!!

1 x Genuine UM8259A-2 8259 UMC 8086 8088 Programmable interrupt controller IC