Ramp Generator (CB10040E)

This circuit was found in an integrated circuit manual from the 1980s. The circuit can be designed based on modern operational amplifiers.

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Call warning (CB9294E)
This circuit can activate a powerful lamp or call system when a telephone call occurs. Suitable for...
Bicycle Horn (CB6488E)
We find this power oscillator circuit in a 90's Popular Electronics. The circuit can be powered by...
Digital One Digit Counter (CB13406E)
This digital didactic digit counter uses common TTL integrated circuits and a common anode...