There are 93 circuit schematics available. Last circuit added on Tuesday, 19 May 2015.

CircuitCategoryDate AddedOK?
One transistor FM transmitter / FM bugging deviceTransmitters 
Two transistor FM transmitter / FM bugTransmitters 
Two transistor FM transmitter circuit diagram and PCB layoutTransmittersSep 23, 2009
Simple AM transmitter using a BFW10 FETTransmittersDec 07, 2014
Simple FM transmitter using a single transistorTransmittersMar 23, 2015
4 Transistor Tracking TransmitterTransmitters 
AM TransmitterTransmitters 
FM Transmitter using two transistorsTransmitters 
AM/FM Simultaneous Transmitter Using Digital ICTransmitters 
Medium range transmitter using pair of 2N3904 transistorsTransmitters 
15 watt FM transmitter circuit diagramTransmitters 
AM TransmitterTransmitters 
Single transistor FM transmitterTransmitters 
Small FM transmitter using SMD componentsTransmitters 
Miniature FM TransmitterTransmitters 
Low Power FM TransmitterTransmitters 
FM Voice TransmitterTransmitters 
Sensitive FM TransmitterTransmitters 
Small FM TransmitterTransmitters 
5W Chinese PLL FM Transmitter With LCD Printed Circuit Board (PCB)Transmitters 
Two Valve 40m CW TransmitterTransmitters 
80m ceramic resonator VXO CW transmitterTransmitters 
80 Metre DSB TransmitterTransmitters 
One Valve CW transmitterTransmitters 
10W 2M CW transmitter circuit diagramTransmittersJun 19, 2011
Simple CW transmitter for 80MTransmittersJun 13, 2011
Europa30, a 10MHz QRP TXTransmitters 
EPCOS Principles of SAWR-stabilized oscillators and transmitters application notes (PDF)TransmittersApr 12, 2014
88 - 108MHz FM audio transmitter / bug circuit diagramTransmittersApr 12, 2014
Automicro TM02 high power data transmitter module circuit diagramTransmittersApr 12, 2014
SAW-based 434MHz transmitter schematic with RO2101 1-port SAW resonatorTransmittersApr 12, 2014
RF Audio transmitter circuit diagram that operates in the AM broadcast bandTransmittersApr 12, 2014
FM Microphone micro-transmitter that is small and sensitiveTransmitters 
A 3m (100 MHz) small bug (ZIP file)TransmittersJan 26, 2001
BC547 80M SSB QRP TransceiverTransmitters 
FM Microphone transmitter / FM buf circuit diagramTransmittersJan 31, 2010
433MHz super remote control using a PIC12F683 to boost rangeTransmittersMay 24, 2010
Remote RF transmitter based on PIC12F675 or PIC12F629TransmittersMay 24, 2010
1.5 volt FM transmitter circuit diagramTransmittersJul 03, 2011
1300MHz - 1500MHz transmitter with 20 - 50mW output powerTransmittersJul 03, 2011
Wireless microphone using 741 opamp and 2N3904TransmittersMay 25, 2012
THE FOX - 40 milliwatt transmitterTransmittersApr 14, 2011
THE FOX 750 - 750 milliwatt transmitterTransmittersApr 14, 2011
FOX BOX - Transmitter controllerTransmittersApr 14, 2011
THE FOX - 250mw transmitter with timerTransmittersApr 14, 2011
1 Watt AM transmitter for the 10 meter band (28MHz)Transmitters 
12-meterband QRP AM oscillator transmitter using a 2N2219 transistorTransmitters 
500mW AM transmitter for the 20 meter band (14MHz)Transmitters 
3 Watt FM Transmitter circuit diagramTransmittersSep 01, 2009
FM Transmitter with range of about 300 feetTransmittersSep 01, 2009
Low Power PLL FM Transmitter based on LMX1601 and Atmel ATtiny2313 or AT90S2313 microcontrollerTransmitters 
175KHz inductive pulse transmitter (PDF)TransmittersJan 26, 2001
7MHz QRP transmitterTransmittersJul 09, 2002
Small Radio TransmitterTransmittersJan 26, 2001
MW Transmitter can be used as an inter-room radio telephoneTransmitters 
Pocket Transmitter that can cover 20 to 25 meters with a telescopic antennaTransmitters 
4 watt FM transmitter circuit diagramTransmittersFeb 21, 2005
FM transmitter bugTransmittersFeb 21, 2005
Small radio transmitterTransmittersFeb 21, 2005
AM transmitterTransmittersFeb 21, 2005
2 Transistor FM Voice TransmitterTransmittersFeb 21, 2005
15 watt FM transmitter circuit schematicTransmittersFeb 21, 2005
Wireless transmitter for PIR using Holtek HT12ETransmitters 
88-108Mhz FM Radio Transmitter with 3 transistor stagesTransmitters 
Simple 430MHz band FM transmitter uses only 2 FETtransistorsTransmitters 
AM transmitter using no power supplyTransmitters 
QRP transmitter circuit diagramsTransmitters 
40 Meter, 5 Watt QRP Transmitter circuit diagramTransmitters 
Miniature FM transmitter circuit diagramTransmittersJan 26, 2001
Sensitive FM transmitter circuit diagramTransmittersJan 26, 2001
Simple RF transmitter circuit diagramTransmittersJan 26, 2001
1.5 volt tracking transmitter circuit diagramTransmittersJan 26, 2001
Tracking transmitter circuit diagramTransmittersJan 26, 2001
30-Meter QRP Transmitter for Morse CodeTransmittersJan 26, 2001
Miniature FM Transmitter #1TransmittersJan 26, 2001
Miniature FM Transmitter #2TransmittersJan 26, 2001
Miniature FM Transmitter #3TransmittersJan 26, 2001
4-transistor transmitter circuit diagramTransmittersOct 06, 2006
FM telephone transmitterTransmittersOct 06, 2006
Miniature tracking transmitterTransmittersOct 06, 2006
Light sensing RF transmitterTransmittersJan 26, 2001
1.5V tracking transmitter circuit diagramTransmittersOct 06, 2006
Micro-Spy with FETsTransmittersJan 26, 2001
Micro-Spy with USWTransmittersJan 26, 2001
Micro-Spy with TTLTransmittersJan 26, 2001
Wireless microphoneTransmittersOct 06, 2006
40-30 CW Transmitter (Tube based)TransmittersMay 19, 2015
The Little Chickadee 6U8A QRP TransmitterTransmittersMay 19, 2015
VXO FM BugTransmittersMay 19, 2015
Micro Power FM Broadcasting CircuitsTransmittersJan 26, 2001
RF/SS Handie Hopper Transmitter SchematicTransmittersOct 23, 2002
80 Metre CW beacon / transmitter circuit diagramTransmittersSep 01, 2009
144.000 Mhz CW TransmitterTransmitters