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 found this circuit in the September 1992 issue of Radio Electronics magazine. It can be...
This circuit adds an amplifying transistor that can supply loads of up to 250 mA. The circuit is...
This circuit was found in a 1964 Electronic Design. The transistor may be a current equivalent of...