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27 MHz FM Receiver - The FMR-201 is a crystal controlled single
channel receiver, comprising of receiving, decoding and open collector
output sections….(circuit added 08/07/06)
27MHz/ 49 MHz Walkie Talkie - Lots of people are requesting
walkie-talkie and RF remote control schematics, so here is some. Building
these circuits needs special equipment and expertise in RF circuits. If
you are going to experiment with these circuits, please..... [Peter Jakab,
Electrical Engineer, Engineer of Informatics]
70-120MHz FM Receiver - This simple one chip FM receiver / TV
tuner will allow you to receive frequencies from 70 up to 120MHz. With
this small receiver it is possible to pickup TV stations, entire 88,
108MHz FM band, aircraft conversation and many other private
transmissions.....(added 05/06/07)
FM Microphone - A micro-transmitter is so small and sensitive, it have only
8 easy-to-get parts and can be assembled in one hour….
FM Microphone - Here is the super NEW miracle improved "Frequency Modulation
Wireless Microphone" (BUG) with added easablilty, readability and copyability.
This was necessitated after the number of E-Mail questions posed by people who were
confused by the layout of the project(s). Before proceeding with the interesting bits,
please note..... [from Harry Lythall's website]
FM Oscillator - ASCII format (Circuit design added 10/06)
