Square sawtooth converter (CB8926E)

We found this circuit in a 1967 American documentation. The diodes are general-purpose and the input frequency can be between 80 and 800 Hz.

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120 V x 40 W x 400 Hz inverter (CB7271E)
This circuit was obtained in Motorola documentation from 1969. The components are from that time. In...
2 Transistor active antena (CB4751E)
We found this circuit in a Poptronics of the 90s. The circuit operates from 100 kHz to 30 MHz and...
Non-inverting AC amplifier with LM741 (CB25922E)
We found this amplifier with 50 MΩ input resistance in the May 1989 Radio Electronics magazine. The...