100 kHz Oscillator (CB22379E)

This is the single-sourced version of the previous oscillator. Frequency can be changed by changing C1.

Telephone amplifier (CB7502E)
This circuit was obtained in a 1960 transistor manual from Sylvania. The circuit uses small...
High Speed Comparator 741 (CB20135E)
This 1980s documentation circuit uses a 741 in a different high-speed comparator configuration. The feed...
Tape Recorder Circuit (CB18339E)
This is the typical circuit of a 60's tape recorder. The circuit uses only two transistors and has a...