Found in a 1980’s documentation, this circuit must have its signal applied to an amplifier stage. The unijunction transistors can be 2N2646.
This circuit generates pulses whose frequency depends on C1. The circuit can be powered by...
This excellent 30 W tube amplifier appeared in the April 1963 Radio Electronics magazine that...
This oscillator circuit with the TLV2474 was obtained from a Texas Instruments Operational Amplifier...