This Japanese transistor radio was manufactured in the 1960s in Japan. The circuit of 6 transistors is for the medium wave range and is powered by a 9 V battery.
Frequency in this oscillator is given by C1 and C2. The circuit produces square pulses that can...
Settings like this can be found in this section and on this website, but from different sources of...
This circuit combines field effect and bipolar transistors to obtain a 20 gain with a pass band...