Temperature regulator CIR21824S (CB21289E)

This zero-crossing switch circuit was found in documentation from the 1990s. GE's PA424 is the main element of the circuit, uncommon today.

| Clique na imagem para ampliar |

Component Tester (CB4313E)
This circuit consists of a simple continuity test with two transistors forming a relaxation...
100 W Inverter (2) (CB13974E)
This circuit is a manual of 1972 RCA power transistors. The critical components of the project are...
High speed trigger (CB21850E)
Found in the 1974 Ferranti transistor manual, this Schmitt trigger circuit uses general-purpose transistors...