CIGAR BOX RADIO
A nostalgic presentation for a simple radio.
Uses disgarded cigar box as containment for radio workings.
Very popular for post-war handbuilt construction.
However ; I had to "deepen" by 3 cm the box by adding some suitably crafted wall extensions, in order to fit the componentry inside.
Construction is on a clear piece of polycarbonate, which sits on pillars.
This allows easy removal of "workings" from box.
Circuit uses the well known MK484 - successor to ZN414 and others (TO92 package): radio on a chip,
followed by a complementary-symmentry audio output stage, using discrete components.
The likes of an LM 386 could well be utilized here.
Tunes medium wave broadcast band; 500 ~ 1500 KHz
pictures : scroll down and across.



Circuit: