Buffered Detector (CB6669E)

This circuit was found in 1967 General Electric documentation. The transistors of the time can be replaced by modern equivalents.

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Delay circuit with two SCRs (CB9497E)
This circuit was found in a 90s Motorola documentation. The circuit uses two SCRs that must be...
Word Compressor (CB19996E)
We found this circuit in a 1975 circuit manual. The operational amplifier is of the old type and...
Digital to Analog Converter (CB6673E)
This circuit using only transistors was obtained from Ferranti's 1969 documentation. It can be...