We found this circuit in American documentation from the 1980s. Transistors can be of general use. The frequency range of the generated signals ranges from 500 kHz to 10 MHz.
This two-tone alarm siren was found in the January 1975 issue of Radio Electronics magazine. The...
We found this peak audio indicator in a 1980 publication. The M1 indicator can be 200 uA with the...
This is a traditional complementary-output transistor amplifier sourcing 2 to 4 watts to a 4 ohm...