Found in a 1980s American documentation, this crystal-controlled oscillator generates 100 MHz signals. The crystal used is 20 MHz. Modern equivalent transistors can be used.
This circuit is suggested by Sanyo and is based on the integrated circuit LA4430, manufactured by it. With a...
This digital signal attenuator was found in a 90s Electronic Design. The circuit operates at...
This circuit generates noise pulses for audio equipment probes. The circuit is from a 90’s 303...