Found in a 70s RCA manual, this circuit uses transistors from the era. Equivalent types can be used such as TIP31 for Q1 and BD135 for Q2.
This circuit allows the use of a common cassette to pass the tape recordings to other media with...
This small transmitter appeared in the March 1989 issue of Radio Electronics magazine. The...
This interesting sound effect circuit that produces the sound of bulls or Bull Horn was found in...