Month: September 2007

Swooftronic 2000

Sorta hacky but pretty cool – The swooftronic 2000 is the original device in the swoof series. It is a very basic digital synthesizer that allows you to vary the upper pitch, lower pitch, note length, sweep rate, rest length and sweep length. Once you have set the desired value you press the play and […]

FM Crystal radio

FM Crystal radio

Larry writes – I have heard, even from a physicist, that it is impossible to build FM crystal radios. On the other hand some experimenters claim that they have built them. This argument intrigued me to try and build an FM crystal radio, which I have done successfully. To my surprise, the result is an […]