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 obtained in the magazine Eletronica Prática 9 of 1977. The Italian magazine no...
This circuit was found in the 1960 Mullard transistor reference manual. The circuit can be...
The circuit presented may use any general purpose transistor. The indicator is an LED and...