We found this Vox in a 1969 Motorola documentation. Transistors support modern equivalents and the SCR can be a TIC106. The reset is done by a push button.
The Texas Instruments TPS7A92 integrated circuit consists of a low-voltage (LDO) linear voltage...
This circuit inverts the signal of any logic using a general purpose PNP transistor. The supply...
This circuit is from the 1990 Motorola Linear Databook. The circuit can be implemented with other...