Transistorized multimeter (CB7355E)

This circuit is from a 1967 Triplett manual. The circuit uses components of the time, the common FET and the general-purpose bipolar transistor.

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Programmable analog filter (CB20937E)
This circuit was found in an Electronic Design. The circuit can be programmed to operate in...
NAND Gate with 1 Transistor II (CB19883E)
We show in the figure how to implement the No-AND or NAND logic function using a general-purpose transistor....
Phase Shift Oscillator (CB21116E)
This circuit uses a general-purpose transistor and has waveform adjustment. We found it in an...