An article in Radio Electronics magazine from November 1958 showed the construction of this tube audio oscillator. Note the use of lamps as a stabilizer to obtain better sinusoidal signals.
We find this circuit in a 1978 documentation. The circuit uses two inverters of a 4049 integrated...
This circuit shows how to implement a TTL compatible oscillator using a transistor. The circuit is...
We found this circuit in an American 1980s documentation. The circuit can be assembled with modern...