This 1 kHz oscillator uses a Norton LM3900 operating system. The frequency depends on C1 and R1 and can be changed.
This circuit makes use of a transconductance operational amplifier. It generates signals with TTL...
This circuit was found in a 1980s documentation for amateur radio. The circuit is for 9 MHz...
This circuit uses an LED (called SSL) to regulate current in a configuration with complementary...