Archive for date: December 5, 2008

Zinc Negative Resistance 80 Meter CW Transmitter.

December 5, 2008 | Amateur Radio | By: Mark VandeWettering

The Spark, Bang, Buzz website has a lot of really interesting low cost electronics experiments involving homebrewing electronics components. Like making your own vacuum tubes, cathode ray tubes, and negative resistance devices. The last is very cool: using a heat treated piece of zinc, you can make a simple oscillator which was documented in the […]