lpdjb@brahms.amd.com (Jerry Bemis) (03/12/91)
I would like to find a single chip AM or FM transmitter. I want to operate on a small 3V battery. A 10mW output will be enough. What have you used? I intend to put this in the handle of a screwdriver. I want to be able to find my tools where ever they might be. The AM band will be best so I can use a ADF to find my tools around the hanger or jet. LPDJB@brahms.and.com
klingler@triton.unm.edu (David Klingler) (03/14/91)
Sounds like all you may need is a simple 1 transistor oscillator transistor set to about 1 megahertz (for AM), and have it drive a pi network tank curcuit. You can probably find circuits for these and more in any old Radio Amateurs Handbook in a public library. Keep it down in the power level you specified to keep your neighbors/FCC/FAA off your back though.