NE535 Integrated Circuit - Standard Custodia - Signetics

S8280F Integrated Circuit - Standard Custodia - Signetics

S8291A Integrated Circuit - Standard Custodia - Signetics

SAB82288-1P Integrated Circuit - DIP20 - Siemens Semiconductors

S82S185-BVA Integrated Circuit - Standard Custodia - Signetics

NE591 Integrated Circuit - Standard Custodia - Signetics

PLHS18P8 Integrated Circuit - Standard Custodia - Signetics

NE582 Integrated Circuit - Standard Custodia - Signetics