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Transmitter Circuits: Transmitter Circuit Diagrams and DIY Kits

This is a list of transmitter circuit designs AND transmitters that come in "kit form" (with all components so that you can build them yourself).

Photo: FM Transmitter and FM Radio Transmitters, 3 Volt FM Transmitter FM Transmitter and FM Radio Transmitters, 3 Volt FM Transmitter
The most powerful circuit we've seen that operates on such low voltage (just two AA cells). A range of 100 meters can be expected and, given a good antenna and FM receiver, 500 meters can be expected. An external power supply can be used up to 9 volts. Tr
The Veronica 1 Watt PLL FM Transmitter is a pretty decent broadcast PLL exciter or transmitter that can be used alone or with an RF power amplifier for high power radio broadcast.
Photo: PCI FM Transmitter - PCI Max 2004 - FM Transmitter via. PCI Slot PCI FM Transmitter - PCI Max 2004 - FM Transmitter via. PCI Slot
Our PCI-Max 2004 is a Stereo PCI FM Transmitter that broadcasts MP3's and steams on FM from your PC (PCI slot). It is controlled via software and will broadcast anywhere on the FM band.
Photo: PCI Max 2004 - FM Transmitter (PCI Slot FM Transmitter) PCI Max 2004 - FM Transmitter (PCI Slot FM Transmitter)
This PCI-Slot Stereo FM Transmitter broadcasts MP3's and steams on the FM band from your PC. It is controlled via software and will broadcast anywhere on the FM band. Plugs into PCI - FM Transmitter
Photo: * USB PLL FM  Stereo Transmitter (FCC Approved) * USB PLL FM Stereo Transmitter (FCC Approved)
An excellent Stereo FM Transmitter which operates through the USB port of essentially any computer. FCC Compliant!
Harry Lythall shares his v7b FM transmitter circuit design. The transmitter outputs 150-300 milliWatts of RF power in the 88-108 MHz band.
Photo: High Quality 9 Volt FM Transmitter Kit High Quality 9 Volt FM Transmitter Kit
The most powerful circuit we've seen that operates on such low voltage (just two AA cells). A range of 100 meters can be expected and, given a good antenna and FM receiver, 500 meters can be expected. An external power supply can be used up to 9 volts. Tr
Photo: BW-TX25 - 25 Watt Stereo FM Transmitter BW-TX25 - 25 Watt Stereo FM Transmitter
The TX25 from Broadcast Warehouse is an extremely high quality stereo FM transmitter that complies with FCC Standards, meaning that it can be used for commerical broadcasting. Output power is 25 Watts.
Photo: BW-TX300 - 300 Watt Stereo FM Transmitter BW-TX300 - 300 Watt Stereo FM Transmitter
The TX300 from Broadcast Warehouse is an extremely high quality stereo FM transmitter that complies with FCC Standards, meaning that it can be used for commerical broadcasting. Output power is 300 Watts.
Photo: BW-TX50 - 50 Watt Stereo FM Transmitter BW-TX50 - 50 Watt Stereo FM Transmitter
The TX50 from Broadcast Warehouse is an extremely high quality stereo FM transmitter that complies with FCC Standards, meaning that it can be used for commerical broadcasting. Output power is 50 Watts.
Photo: BW-TX150 - 150 Watt Stereo FM Transmitter BW-TX150 - 150 Watt Stereo FM Transmitter
The TX150 from Broadcast Warehouse is an extremely high quality stereo FM transmitter that complies with FCC Standards, meaning that it can be used for commerical broadcasting. Output power is 150 Watts.
Schematics / circuit diagrams for a PLL 1 Watt FM radio transmitter that is enclosed in a casing. Oscillator, PLL circuits.
Photo: CTE TX500 Plus - Professional 500 Watt FM Transmitter CTE TX500 Plus - Professional 500 Watt FM Transmitter
This professional FM Transmitter offers a whopping 500 Watts output power in the 88 - 108 MHz band. The transmitter itself is digitally controlled and is extremely user friendly.
Photo: CTE TX1000 Plus - Professional 1000 Watt (1 kiloWatt) FM Transmitter CTE TX1000 Plus - Professional 1000 Watt (1 kiloWatt) FM Transmitter
This professional FM Transmitter offers an amazing 1000 watts RF output power in the 88 - 108 MHz band. The transmitter itself is digitally controlled and is extremely user friendly.
Photo: BW-TX5 - 5 Watt Stereo FM Transmitter BW-TX5 - 5 Watt Stereo FM Transmitter
The TX5 from Broadcast Warehouse is an extremely high quality stereo FM transmitter that complies with FCC Standards, meaning that it can be used for commerical broadcasting. Output power is 5 Watts.
Dick Cappel's page illustrates an extremely basic small FM transmitter that rebroadcasts sounds using a 1.5 Volt battery. very simple circuit.
Photo: Sound Activated FM Transmitter Sound Activated FM Transmitter
Sound turns on the transmitter, which operates in the FM radio band. A neat way to catch a thief in another room or garage. The volume of sound needed to trigger the circuit is adjustable. The two stage transmitter has good range and the circuit powers do
Photo: High Power FM Transmitter High Power FM Transmitter
A powerful little circuit with surprisingly good audio quality. Can transmit up to 1/2 mile in open spaces. This is one of the most powerful FM transmitters that you can legally purchase. An electret microphone is used to add sensitivity. The circuit come
Interesting, hand-drawn schematic for a PLL FM Stereo Transmitter, with approximately 5 Watts RF output power.
Photo: CTE TX25 Plus - Professional 25 Watt FM Exciter / Transmitter CTE TX25 Plus - Professional 25 Watt FM Exciter / Transmitter
This professional FM Transmitter offers 25 Watts output power in the 88 - 108 MHz band. The transmitter itself is digitally controlled and is extremely user friendly.
Photo: CTE TX250 Plus - Professional 250 Watt FM Transmitter CTE TX250 Plus - Professional 250 Watt FM Transmitter
This professional FM Transmitter offers 250 Watts output power in the 88 - 108 MHz band. The transmitter itself is digitally controlled and is extremely user friendly.