Blown Fuse Alarm (CB6109E)

We found this circuit in a 1967 Electronic design. However, it can be easily implemented even today as it uses only common diodes.

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Modulated siren 555 (CB9201E)
This is one of the many modulated siren versions that can be found on our website. We found it in a...
Music Synthesizer Generator (CB24744E)
This circuit was found in the May 1983 issue of Radio Electronics magazine. The SSM7046 integrated...
Shield For SCR (CB19139E)
This isolated shield uses a common optical coupler that supports several equivalents. The resistor in...