Building your first radio receiver is a great experience for all those starting to explore electronics. It tunes to the standard medium wave band AM broadcast frequencies (540-1600).
The circuit uses a Tuned Radio Frequency (TRF) front-end and a TA7642/MK484 multi-function AM radio IC that contains RF Amplifier, Active Detection and Automatic Gain Control (AGC) for improved sensitivity. The output of the IC is fed into two stages of audio amplification to drive the speaker supplied. Volume control is also provided for.
All components supplied including a pre-wound coil and ferrite bar antenna, tuning capacitor, TA7642 radio IC, volume control potentiometer with knob, speaker, tuning thumb wheel and high quality printed circuit board.
Excellent project for beginners and schools. Introduces a good selection of components.Specifications
|Supply||9Vdc e.g. 9V PP3 battery (Order Code 656.020) or |
Mains adapter (Order Code 660.444UK with connector 778.106 or 777.001 is suitable)
|Board Dimensions||102 x 33mm|
|Board Connections||Screw terminal blocks (speaker and power)|
|Product Format||SELF-ASSEMBLY Electronic Kit (KT) Product Formats Info|
GP Ultra Alkaline batteries are specially formulated to meet the increasing demands of today's new generation of power hungry devices such as Toys, Torches, Portable Radios, Smoke Alarms and Games Console Controllers...
MK194 Digitally Controlled FM Radio Mini Kit is a modern high quality FM receiver project with excellent sensitivity powered by a simple 9V PP3 battery. Excellent project for schools and colleges...
This kit is a great way to explore the wonders of modern FM radio. The circuit provides surprising good sensitivity and sound quality...