This sensitive Japanese mid-wave receiver from the 1960s has an output power of 45 mW and is powered by 3 batteries (4.5 V). The circuit is superheterodyne with an IF of 455 kHz.
This simple 60's receiver is powered by solar cells of the time. The transistor is made of...
VR can be from 50 to 220k it is recommended to connect a 100-ohm resistor in series. The lamp may...
This circuit provides precise signals of three frequencies, using CMOS technology. The integrated...