2-transistor amplifier (CB26314E)

This amplifier stage was obtained from a Popular Electronics from the 90s. The transistors are general purpose.

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Low Input Current Fast Adder (CB14126E)
We found this circuit in the 1994 Linear Applications Handbook from National Semiconductor. The...
16 W Amplifier (CB6168E)
This circuit is from an Electronics World of 1968. The transistors are of the time and the power...
Remote Control Tester (CB25561E)
This circuit checks the infrared emission of a common remote control. We found it in the March 1993...