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Frequency Modulation (FM) Circuits, Page 3
Last Updated on: Sunday, July 27, 2008 07:39 PM

FM Circuits:  #'s - G     F     I - M     O - Z
Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Gadgets for Radio Control Page:  Electronic circuit (added 9/04)

High Performance FM Receiver for Audio and Digital #2:  (circuit / schematic design added 6/06)

High Power FM Microphone (FM Bug):  (electronic Circuit / Schematic added 10/04)

Improved FM Stereo Modulator:  (electronic circuit added 7/03)

Long Range FM Transmitter:  (electronic Circuit / Schematic added 10/04)

Low Power FM Transmitter:  (schematic / circuit design added 9/02)

Micro Spy with FETs:  (schematic / circuit added 10/02)

Micro Spy with TTL:  (schematic / circuit added 10/02)

Micro Spy with Usw:  (schematic / circuit added 10/02)

Micropower FM Broadcasting Circuits:  (schematic / circuit design added 9/02)

Miniature FM Radio Receiver using TDA7088:  The electronic diagram of the monophonic FM receiver made with TDA7088T is shown on Pic.4.12. If built with SMD components it can be placed in a matchbox, altogether with two button-type batteries. The operating principle of this device is given in the previous chapter. The only thing new is a very simple audio amplifier made with BC547 transistor, which is loaded by cheap 16-Ohm headphones. The telescopic antenna is used, as on Pic.4.8.   Small mishap of this receiver is that it has....   (added 11/05)

Miniature FM Spy Mic:  This spy mic works from single 1.5 volts AA type battery cell. It is highly sensitive and has a range of 300 meters. You can use any HF transistor with cut-off freq. >300 MHz for Q. Use electret mic.   (added 11/05)

Miniature FM Transmitter #1:  (circuit / schematic design added 6/06)

Miniature FM Transmitter #2:  (circuit / schematic design added 6/06)

Miniature FM Transmitter #3:  (circuit / schematic design added 6/06)

Miniature FM Transmitter #4:  Electronic circuit (added 9/04)

Miniature FM Transmitter:  (electronic circuit added 4/05)

Miniature FM Transmitters #4:  (circuit / schematic added 5/03)

Monaural FM Transmitter:  AN-543-MonauralFMTransmitter-Analog Device Application Notes  (app note added 6/06) 

 

Mpf102 FM Receiver:  (schematic / circuit design added 9/02)

FM Circuits:  #'s - G     F     I - M     O - Z

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