We found this circuit for video games in a Radio Electronics magazine from August 1977. The transistor can be any common RF type that reaches the desired signal frequency.
This circuit is from 1999 documentation. However, it can still be easily assembled, as all...
This oscillator provides a sinusoidal signal and can be applied to other operational amplifiers. The...
This circuit was found in the June 1969 issue of Radio Electronics magazine. The circuit uses a...