Circuit Project Electronic

An AM portable radio receiver made from the ZN414 IC. The ZN414 ic has now been replaced by the MK484 which is identical in performance and pinout.
Designed around the popular ZN414 IC this receiver covers the medium wave band band from approximately 550 to 1600 KHz with the values shown. The coil and tuning capacitor [...]

Description:
Crystal radio requires no power supply to operate because it uses energy from the signals it receives. Performance is - like one should expect - poor. Nevertheless, with a good antenna and proper ground, it shouldn’t be too difficult to tune to a strong AM station.
While this circuit is very simple, many points should be [...]

Circuit : Andy Collinson
Email: anc@mitedu.freeserve.co.uk
Description:
An AM portable radio receiver made from the ZN414 IC. The ZN414 ic has now been replaced by the MK484 which is identical in performance and pinout.
Notes:
Designed around the popular ZN414 IC this receiver covers the medium wave band band from approximately 550 to 1600 KHz with the values shown. The [...]