SW Receiver Using MK414


Posted on Apr 1, 2012

The tuned circuit consists of a variable capacitor and fixed air spaced coil. For the coil, I wound between 10 and 20 turns of wire on an empty tube of around 1.5 inches diameter. The turns were spaced so that the overall length was around 3 inches. The variable capacitor tuned 0 - 300 pF but there is plenty of scope for experiment here. One final point, you will need an external antenna to receive broadcasts. I have an outside wire that is about 7 meters long and this was quite effective.


SW Receiver Using MK414
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Digital Thermometer
Advanced Telephone Intercom
Picture-fixer-inverter
Serial communication between AVR-006 & computer
2 X 20 W car amplifier circuit with TDA2009 Schematic Diagram
LEDs and Switches
Operational Amplifier Video Tutorial and super microphone circuit with LM324



Top