This modulator amplifier for transmitters was found in a 1947 American book. The circuit uses an output with 4 tubes connected in parallel and in push-pull.
This circuit can be used to activate the lamp when it gets dark. We found the circuit in old...
Found in Motorola documentation from the 1980s, this circuit employs an integrated device from...
This circuit generates slow interval steps for controlling stepper motors. The circuit has two...