There are 98 circuit schematics available in this category. Click here for all circuit diagrams. Last circuit added on Thursday, 30 July 2015.

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CircuitCategoryDate AddedOK?Votes 
One transistor FM transmitter / FM bugging deviceTransmitters 1
Two transistor FM transmitter / FM bugTransmitters 0
Two transistor FM transmitter circuit diagram and PCB layoutTransmittersSep 23, 20090
Simple AM transmitter using a BFW10 FETTransmittersDec 07, 20140
Simple FM transmitter using a single transistorTransmittersMar 23, 20150
4 Transistor Tracking TransmitterTransmitters 0
AM TransmitterTransmitters 0
FM Transmitter using two transistorsTransmitters 0
AM/FM Simultaneous Transmitter Using Digital ICTransmitters 0
Medium range transmitter using pair of 2N3904 transistorsTransmitters 0
15 watt FM transmitter circuit diagramTransmitters 0
AM TransmitterTransmitters 0
Single transistor FM transmitterTransmitters 0
Small FM transmitter using SMD componentsTransmitters 0
Miniature FM TransmitterTransmitters 0
Low Power FM TransmitterTransmitters 0
FM Voice TransmitterTransmitters -1
Sensitive FM TransmitterTransmitters 0
Small FM TransmitterTransmitters 0
5W Chinese PLL FM Transmitter With LCD Printed Circuit Board (PCB)Transmitters 0
Two Valve 40m CW TransmitterTransmitters 0
80m ceramic resonator VXO CW transmitterTransmitters 0
80 Metre DSB TransmitterTransmitters 0
One Valve CW transmitterTransmitters 0
10W 2M CW transmitter circuit diagramTransmittersJun 19, 20110
Simple CW transmitter for 80MTransmittersJun 13, 20110
Europa30, a 10MHz QRP TXTransmitters 0
EPCOS Principles of SAWR-stabilized oscillators and transmitters application notes (PDF)TransmittersApr 12, 20140
88 - 108MHz FM audio transmitter / bug circuit diagramTransmittersApr 12, 20140
Automicro TM02 high power data transmitter module circuit diagramTransmittersApr 12, 20140
SAW-based 434MHz transmitter schematic with RO2101 1-port SAW resonatorTransmittersApr 12, 20140
RF Audio transmitter circuit diagram that operates in the AM broadcast bandTransmittersApr 12, 20140
FM Microphone micro-transmitter that is small and sensitiveTransmitters 0
A 3m (100 MHz) small bug (ZIP file)TransmittersJan 26, 20010
BC547 80M SSB QRP TransceiverTransmitters 0
FM Microphone transmitter / FM buf circuit diagramTransmittersJan 31, 20100
433MHz super remote control using a PIC12F683 to boost rangeTransmittersMay 24, 20100
Remote RF transmitter based on PIC12F675 or PIC12F629TransmittersMay 24, 20100
1.5 volt FM transmitter circuit diagramTransmittersJul 03, 20110
1300MHz - 1500MHz transmitter with 20 - 50mW output powerTransmittersJul 03, 20110
Wireless microphone using 741 opamp and 2N3904TransmittersMay 25, 20120
THE FOX - 40 milliwatt transmitterTransmittersApr 14, 20110
THE FOX 750 - 750 milliwatt transmitterTransmittersApr 14, 20110
FOX BOX - Transmitter controllerTransmittersApr 14, 20110
THE FOX - 250mw transmitter with timerTransmittersApr 14, 20110
1 Watt AM transmitter for the 10 meter band (28MHz)Transmitters 0
12-meterband QRP AM oscillator transmitter using a 2N2219 transistorTransmitters 0
500mW AM transmitter for the 20 meter band (14MHz)Transmitters 0
3 Watt FM Transmitter circuit diagramTransmittersSep 01, 20090
FM Transmitter with range of about 300 feetTransmittersSep 01, 20090
Low Power PLL FM Transmitter based on LMX1601 and Atmel ATtiny2313 or AT90S2313 microcontrollerTransmitters 1
175KHz inductive pulse transmitter (PDF)TransmittersJan 26, 20010
7MHz QRP transmitterTransmittersJul 09, 20020
Small Radio TransmitterTransmittersJan 26, 20010
MW Transmitter can be used as an inter-room radio telephoneTransmitters 0
Pocket Transmitter that can cover 20 to 25 meters with a telescopic antennaTransmitters 0
4 watt FM transmitter circuit diagramTransmittersFeb 21, 20050
FM transmitter bugTransmittersFeb 21, 20050
Small radio transmitterTransmittersFeb 21, 20050
AM transmitterTransmittersFeb 21, 20050
2 Transistor FM Voice TransmitterTransmittersFeb 21, 20050
15 watt FM transmitter circuit schematicTransmittersFeb 21, 20050
Wireless transmitter for PIR using Holtek HT12ETransmitters 0
88-108Mhz FM Radio Transmitter with 3 transistor stagesTransmitters 0
Simple 430MHz band FM transmitter uses only 2 FETtransistorsTransmitters 0
AM transmitter using no power supplyTransmitters 0
40 Meter, 5 Watt QRP Transmitter circuit diagramTransmitters 0
Miniature FM transmitter circuit diagramTransmittersJan 26, 20010
Sensitive FM transmitter circuit diagramTransmittersJan 26, 20010
Simple RF transmitter circuit diagramTransmittersJan 26, 20010
1.5 volt tracking transmitter circuit diagramTransmittersJan 26, 20010
Tracking transmitter circuit diagramTransmittersJan 26, 20010
30-Meter QRP Transmitter for Morse CodeTransmittersJan 26, 20010
Miniature FM Transmitter #1TransmittersJan 26, 20010
Miniature FM Transmitter #2TransmittersJan 26, 20010
Miniature FM Transmitter #3TransmittersJan 26, 20010
4-transistor transmitter circuit diagramTransmittersOct 06, 20060
FM telephone transmitterTransmittersOct 06, 20060
Miniature tracking transmitterTransmittersOct 06, 20060
Light sensing RF transmitterTransmittersJan 26, 20010
1.5V tracking transmitter circuit diagramTransmittersOct 06, 20060
Micro-Spy with FETsTransmittersJan 26, 20010
Micro-Spy with USWTransmittersJan 26, 20010
Micro-Spy with TTLTransmittersJan 26, 20010
Wireless microphoneTransmittersOct 06, 20060
40-30 CW Transmitter (Tube based)TransmittersMay 19, 20150
The Little Chickadee 6U8A QRP TransmitterTransmittersMay 19, 20150
VXO FM BugTransmittersMay 19, 20150
Micro Power FM Broadcasting CircuitsTransmittersJan 26, 20010
RF/SS Handie Hopper Transmitter SchematicTransmittersOct 23, 20020
80 Metre CW beacon / transmitter circuit diagramTransmittersSep 01, 20090
144.000 Mhz CW TransmitterTransmitters 0
CW transmitter for 80 m and 40 m amateur radio bands based on AD9833 DDSTransmittersJul 13, 20150
All-Digital Stereo FM Transmitter with RDS based on AD9852 DDS (PDF)TransmittersJul 13, 20151
FM transmitter based on MC145170 PLL and Mini-circuits POS150TransmittersJul 13, 20150
5W PLL FM Transmitter with typical output power of 5 W and no-tune designTransmittersJul 13, 20150
Mini AM transmitter using LM386 and 4 MPF102 FETs for an output stageTransmittersJul 13, 20150
Standalone Multiband WSPR beacon transmitter (MEPT) - PDF fileTransmittersJul 13, 20151