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Transmitter Circuits, Page 3
Transmitters:  #'s - B       C - F       G - M      N - S      T - Z
Last Updated on: Friday, March 12, 2010 12:07 PM

 

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Guitar FM transmitter - (electronic circuit added 05/07)
HAM Radio BFO - circuit diagram of beat frequency oscillator using BF494 and how to listen amateur radio communication on ordinary BC receiver. . (added 01/05)
HeNe Laser Transmitter/Receiver (Aaron Cake) - (circuit / schematic design added 7/02)
High Power FM Microphone FM Bug - My FM Wireless Microphone has been a very popular project with beginners and experienced constructors alike. It has been used inside guitars and as the basis of a remote control system. ….(electronic Circuit / Schematic added 10/04)
Infrared Transmitter / Detector - (electronic design added 6/07)
Infrared Transmitter and Receiver Schematic Diagrams - (electronic circuit added 7/03)
Infrared Transmitter Circuit - (electronic schematic / circuit added 4/02)
Infrared Transmitter for Locomotives - (circuit / schematic added 6/05)
IR Transmitter Circuit - (electronic circuit added 4/05)
ISM Transmitter with TDA5100 / TDA5200 - (electronic circuit added 6/07)
Laser Link Communicator - audio transmission up to few hundred meters (circuit add 04/03/02)
Laser Torch-Based Voice Transmitter and Receiver - (circuit / schematic design added 6/06)
Laser transmitter/receiver (Aaron Cake) - This set of two circuits from the basis for a very simple light wave transmitter. A LASER beam is modulated and then aimed at a receiver that demodulates the signal and then presents the information (voice, data, etc..). The whole thing is very easy to build and requires no specialized parts execpt for the LASER itself..... (circuit / schematic design added 8/03)
Long Range FM Transmitters - (electronic circuit added 10/05) 
Loop powers Current transmitter - 10/28/99 EDN-Design Ideas:.....(design idea added 2/06)
Low cost relative humidity Transmitter uses single logic IC - 11/08/01 EDN-Design Ideas:  The low-cost percentage-relative-humidity radio transmitter in Figure 1 operates in a cold-storage warehouse for vegetable storage at temperatures of 1 to 5 C. It is generally difficult to collect such data from a low-temperature area with high humidity and low illumination.....(design idea added 10/03)
Low Power FM Transmitter - Useful to retransmit the hi-fi to another FM receiver nearby, or as a wireless mic  (electronic diagram added 6/03)
MC145151 PLL FM Transmitter - This PLL has been designed with an old Motorola circuit :the MC145151. The VCO is based on a "Colpitz" oscillator equiped with a Fet Transistor.(J310) Two varicap Diodes are used in order to reduce the global noise of the VCO. In addition,these two diodes allow the PLL to keep the lock status through a large range of climatic conditions. An another J310 is used in order to match the impedance between the oscillator and the fist amplifier stage. A MSA1105 from Minicircuits increases the RF power level coming from the VCO to +14dBm. A simple low pass filter rejects the second harmonic to -20 dB.(Worst case) Finally, a 7 dB attenuator and a second amplifier stage (BFR96S) achieve this radio design. ….(circuit design added 11/08)
MC145170 PLL FM Transmitter - In order to simplify the transmitter design, we've used the new pll circuit from Motorola :the MC145170. This PLL includes the prescaler and a serial standard bus called SPI. (circuit added 04/05/06)
Medium range transmitter - ….(electronic schematic added 08/08)
Micro Power AM BroADCast Transmitters - In this circuit, a 74HC14 hex Schmitt trigger inverter is used as a square wave oscillator to drive a small signal transistor in a Class C amplifier configuration. The oscillator frequency can be either fixed by a crystal or made adjustable VFO with a capacitor/resistor combination. (added 4/02)
Micro Spy with FETs - (Tony van Roon's electronic diagram added 6/03)
Micro Spy with TTL - (Tony van Roon's electronic diagram added 6/03)
Micro Spy with USW - (Tony van Roon's electronic schematic / circuit added 4/02)
MicroPower FM BroADCasting Circuits - (electronic diagram added 6/03)
Minature FM Transmitter - This miniature transmitter is easy to construct and it's transmissions can be picked up on any standard FM radio.  It has a range of up to 1/4-mile (Tony van Roon's 400 meters) or more, depending on the line-of-sight, obstructions by large buildings,etc.  It is great for room monitoring, baby listening, nature research,....(Tony van Roon's electronic design added 02/03/04)
Miniature beeper bumper transmitter for vehicle and asset tracking - (schematic / circuit added 05/07)
Miniature FM Transmitter - (circuit / schematic design added 6/06)
Miniature FM Transmitter #1 - This miniature transmitter is easy to construct and it's transmissions can be picked up on any standard FM radio.  It has a range of up to 1/4-mile (400 meters) or more, depending on the line-of-sight, obstructions by large buildings, etc.  It is great for room monitoring, baby listening, nature research, etc.....(Tony van Roon's circuits added 08/09)
Miniature FM Transmitter #2 - (Tony van Roon's electronic schematic / circuit added 4/02)
Miniature FM Transmitter #3 - (Tony van Roon's electronic schematic / circuit added 4/02)
Miniature FM Transmitter #4 - (Tony van Roon's electronic Circuit added 03/06)
Miniature FM Transmitter #5 - (Tony van Roon's electronic schematic / circuit added 08/09)
Miniature FM Transmitter #6 - (Tony van Roon's electronic schematic / circuit added 08/09)
Miniature FM Transmitter #7 - (Tony van Roon's circuit / schematic design added 08/09)
Miniature MW Transmitter - circuit diagram of simple medium wave transmitter using BF494B. This simple transmitter have a range of 200 meters. . (added 9/04)
Miniature tracking transmitter - (Tony van Roon's diagram added 05/07)
Monaural FM Transmitter - AN-543-MonauralFMTransmitter-Analog Device Application Notes  (app note added 6/06) 
Multi Channel RC using CMOS  - This transmitter has no separate on/off switch because the joysticks switch the battery terminal. The receiver has a bigger motor to drive the wheels and a smaller motor to drive the steering which is not proportional. There are two speeds in forward and one in reverse. You could add an extra channel to the receiver by using the spare latch. (added 2/05)
Multiband CW Transmitter - Circuit / schematic (added 02/05)

 
Transmitters:  #'s - B       C - F       G - M      N - S      T - Z
 
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