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

Sound Effects Generator
Linear temperature-to-frequency
Yongnuo YN-460 Flash Remote Power Control
Scientific Society
DTMF Transeivers
Commodore 64 Keyboard Joystick & Paddle Interfaces
mk120 light barrier 12v dc power supply
divide 1 333 multiply circuit
3-Band Active Audio Tone Control Circuit
Sound Card Interfacing for RTTY PSK31 and SSTV
PLL pulse generator(74HC4060 TC9122P)



Top