This is one of the more impressive electronics hacks I’ve seen in a while: it uses an Atmel microcontroller as a replacement for an RFID chip in a very novel way (energy transmitted from the RFID reader powers the chip directly, no power on the microcontroller, so it is passive just like the RFID devices are). Some neat ideas:
Monthly Archives: July 2009
JBOT – An Easy QRP linear amplifier
During a morning chat, N2MCS mentioned that he was looking at a simple QRP linear amplifier design and gave me the following url:
JBOT – An Easy QRP linear amplifier
It was designed by Ashar Farhan, VU2ESE, who is perhaps better known as the designer of the rather popular BitX20 rig. The amplifier takes a single milliwatt up to a QRP gallon, and uses only bipolar transistors. Definitely interesting.