Sequential without integrated (CB6768E)

This circuit is from a 1967 publication and applies to incandescent lamps up to 600 W. Triacs must be fitted with heat sinks.

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Amplifier for photodiode 1 (CB6787E)
We found this circuit in Harris' 90s documentation. The circuit applies to modern operational...
Crystal oscillator (CB7539E)
Found in a 90s magazine for radio amateurs, this circuit can generate frequencies up to 45 MHz...
Two Diode Balanced Modulator (CB4233E)
This is yet another balanced modulator circuit for SSB transmission. This two-diode circuit was...