There were a few versions of this transceiver (now is version 2). Just received the kit which contains the pcb and all the necessary parts. The coils look like regular resistors. The whole transceiver contains two transistors and one amplifier. I can imagine to build a transmitter on one transistor (quartz plus transistor and we have CW transmitter) but how to build a receiver?
O ordered kit on eBay. Cost: a few dollars. It is not only the smalles but also the cheapest transceiver ever :)
The schema of the Pixie:
Ready to start
And the result:
It really works !!! Great fun :)