741 - amplificador operacional:
CA3056, 3741, L141, LH101, LM741, MC1539, 1741, MCH1439, MIC74, N5741, PA424, 7741, RM741, S5741, SN72741, TAA221, TBA221, TOA1741, 1748, UA741, UC4741, ZLD741
MC1310 - decodificador FM:
CA3090, MC1310
LM104 - regulador de tensión:
LM204, LM304, SFC2104, SFC2204, SFC2304