TTL Counter (CB21360E)

This counter from 0 to 9999 was found in English documentation. The power source must be 5V with at least 1A.

Locked Triac Switch (CB12241E)
This circuit, which applies to configurations with triacs of the TIC series, was found in a...
Standing Wave Ratio Meter (CB4121E)
This simple standing waveform (ROE or SWR) meter is used to adjust antenna matching with...
Electronic doorbell (CB24298E)
This circuit has a visual indication of activation and is suitable for people with hearing...