This circuit from a 1968 Motorola documentation provides a 120 AC output with 60 Hz from a 48 V DC input. The circuit uses transformers and coils of commercial types of the time.
This excellent quality transistor amplifier using Darlington transistors was found in a 1980s...
In the figure we have a configuration that allows to test NPN transistors and with the addition of a...
It can be obtained from Mouser Electronics new transceiver modules long range (LORA) Microchip...