Sawtooth generator (CB21338E)

This op amp circuit is based on a 555 IC and two common op amps. Transistors are general purpose.

Transistor Monostable (CB19361E)
Equivalent transistors, such as the BC548, can be used in this circuit that we find in...
Battery condition indicator (CB9547E)
Found in a 90s documentation, this circuit makes use of D1, a switching diode that is uncommon today....
IR Remote Control Transmitter (CB16881E)
This is the suggested transmitter circuit for the CB16880E. The emitting LED must be a...