Pixie - 3
Well, the time has come to build smallest possible working transceiver. Many of them has been built before occupying various tin boxes. One I got was "Fishermen's Friend" mini size. The question was - Could I make it? Should it be an original pixie or my pixie? Searching through internet resources I came to conclusion that my pixie must work wider than original design based on single crystal and there was a need to have TX offset capability. Prototype worked fine until I soldered RX part. TX self oscillations, a lot of BCI, poor tone. This made me angry....The reason was very simple - attempting to put everything in a smallest possible candy can required very good component placing. Also I had to make my own printed circuit, because protoboards produced a lot of stray capacitances and inductances. Finally the rig was made and then 8th of March I made 8 contacts during local contest on 80 meters. I called my pixie - "Pixie-3" and do believe that I have a right to do so remembering who was the first. Look at the small note on schematics. Every Ham should try to build this cute rig himself or from the kit. Unforgettable experience and pleasure.
Universal board caused a lot of problems
Components layout was also wrong
This can I got from my work mate and had to give him bigger one including candies ;-)))
Printed board was homebrewed but two mistakes I made ( In 1995 I made my last boards) so please copy carefuly.
Ruler below shows how small the parts are
Final assembly of Pixie-3
Pixie - 3 over a hand key
Tuning range: 3500kHz - 3579kHz
Output power: approx.250mW @ 50 ohms
Supply voltage: 13,8V
VXO stability: excellent
TX offset: approx. 700Hz ( slightly lower above 3570kHz)
Antenna: dipole recommended