🚀 go-pugleaf

	I need concise schematics for small, low-power RF transmitters
(preferably FM). I have a basic knowledge of electronics and am handy
with a soldering iron, but I really need these circuits spelled out
for me. I would appreciate transmitters powered both by batteries and
by phone line current (while still allowing normal operation of the
phone).
	Recently, I also rec'd a cellular phone that I have no use for
as-is (can't afford to subscribe), but is otherwise in perfect working
order. What can I do with it (other than using the battery, etc.)? Can
I program it to listen in on active cells, switch cells to follow a
call, etc.?
	Thanks in advance--leave all replies here.