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.
This circuit was found in a 1967 American documentation. The circuit uses components of the time,...
This circuit for several frequencies was obtained in an American documentation from the 90s. The...
We found this circuit in a Popular Electronics of the 80's. The circuit can be used to drive...