Non-inverting amplifier (CB9018E)

Found in documentation from the 70s, this circuit uses an operational one from that time. It goes for modern equivalents.

567 Two-Tone Decoder (CB25791E)
This two-tone decoder has a bandwidth of 24%. The circuit is from a 1994 Electronics Now. The...
Bike speedometer (CB20497E)
Bike speedometer (CB20497E) This circuit can be powered by a solar cell. The circuit is from a...
Common Collector Stage (CB4937E)
This is a typical common collector amplifier step configuration. The transistor can be used...