This amplifier was found in a 1957 Rayrtheon documentation. The circuit can be fitted with a BC558 transistor. Driver and output transformers can be obtained from unused transistor radios.
Found in American documentation from the 1970s, this circuit is intended for amplifying analog TV...
This circuit produces horizontal lines or bars in a analog TV tuned between channels 2 and 5. L1...
This alarm with the 555 integrated circuit is from an EDN from the 90s. The circuit directly...