100 kHz Oscillator (CB22379E)

This is the single-sourced version of the previous oscillator. Frequency can be changed by changing C1.

TTL binary adder (CB22430E)
This circuit is based entirely on TTL gates. The circuit must be powered by a voltage of 5...
Beacon Transmitter (CB11952E)
This transmitter operates in the FM band emitting beeps that can be picked up on a common radio at...
Siren Oscillator (CB8449E)
This circuit was found in a 90s European documentation. The circuit already includes a powerful...