SCR Steady Hand (CB22098E)

This “test your nerves” game was found in old documentation. The SCR can be of any sensitive type, for example series 106.

+5 V to -15 V converter (CB1515E)
We find this circuit in an old technical documentation. The circuit can be drawn up with other...
Tone Generator 555 (CB18646E)
This sound effects circuit with the 555 was found in an American documentation translated from the...
Balanced Dual Modulator (CB4234E)
This dual balanced modulator configuration was obtained in a 1980s telecommunications...