Radio schematics

Build a powerful FM transmitter with a range of up to 100 meters using a three-stage circuit, powered by a 9V battery. Maximize your signal’s potential with this innovative design and achieve exceptional performance.... [read more]

Build stunning RC oscillators using the ultra-fast AD8099 opamp! This project delivers a stable 108 MHz VHF FM signal with adjustable frequency and impressive output power, perfect for experimenting with radio design.... [read more]

Build a simple AM transmitter with a single winding inductor and readily available components like the Jaycar LF-1536 choke. Easily tune frequencies using fixed 220pF capacitors and create a low-cost microphone for this inspiring electronics project.... [read more]

Unleash your audio potential with this remarkable FM wireless microphone kit – delivering exceptional stereo sound and a range exceeding 50 meters! Build a robust, noise-free system perfect for your projects, featuring a crystal-locked transmitter and adjustable sensitivity controls. Discover unparalleled audio quality and a surprising level of performance, ideal for hobbyists and makers seeking a powerful, adaptable solution.... [read more]

Build a powerful shortwave transmitter and achieve exceptional signal strength up to 75 meters with this affordable design. Tune from 10 to 15 MHz using VC1 and VC2, amplifying your signals through components like BD677 and BD139.... [read more]

Build a powerful AM radio receiver utilizing the ZN414 IC, covering 550 to 1600 KHz with a variable DC operating voltage from 0 to 1.8 volts. Optimize performance and unlock exceptional audio clarity in your custom circuit design.... [read more]

Build a powerful FM transmitter with this detailed schematic, utilizing components readily available from vintage electronics. Achieve up to 45W output power and fine-tune your broadcast between 88-108MHz with precise control using adjustable capacitors. Unlock the potential of this design for robust audio transmission and experiment with a simple dipole antenna for optimal performance.... [read more]

Build a powerful AM transmitter with this schematic, achieving voice modulation on the medium wave band. This 1600KHz tunable circuit, utilizing a regenerative oscillator and common emitter amplifier, offers a captivating path to explore radio frequency design.... [read more]

Build your own short-range FM transmitter with this simple 9-14V circuit, achieving a range of up to 30 yards and utilizing components like a BF244A FET.... [read more]

Unleash the power of radio with this meticulously designed FM transmitter, capable of delivering 3 to 3.5 watts of impressive output between 90 and 110 MHz. Build your own high-performance transmitter and explore the world of RF engineering – a perfect foundation for advanced projects.... [read more]

Control a Hallogene Lamp with this innovative 73 MHz radio-controlled circuit. Build a responsive system to switch your lamp on and off remotely, utilizing a 74LS14 Schmitt trigger and 74LS76 JK Flip-Flop for precise control.... [read more]

Build your own short-range remote control! This innovative 35kHz design offers simple circuitry, no external antennas needed, and reliable operation through walls. Create a powerful, interference-free remote with this easy-to-assemble schematic.... [read more]

Build a powerful 2-transistor FM voice transmitter with a range of 20-30 meters, utilizing a Maplin ECM mic and a custom-tuned coil for inspiring long-range communication.... [read more]

Unlock the potential of your radio projects with this innovative circuit, operating on 88-108MHz and featuring a stable 12-16V power supply. Consume just 100-400mA while expertly controlling frequency and adapting your antenna for crystal-clear reception. Build your future today!... [read more]

Build a powerful VHF transmitter with a Hartley oscillator featuring four turns of 18swg wire for optimal performance and exceptional audio sensitivity.... [read more]

Build a powerful field-strength meter with this simple circuit and unlock the secrets of your transmitter’s performance. This 2N3819 JFET circuit, utilizing a germanium detector diode, provides a crucial tool for aligning stages and experimenting with antennas, revealing optimal transmitter power levels.... [read more]

Build your own crystal radio amplifier and unlock the secrets of Los Angeles broadcasting with this detailed schematic. Achieve strong station reception, up to 15 feet with minimal antenna, and fine-tune your signal for optimal clarity.... [read more]

Build a powerful FM transmitter capable of transmitting a 600 Hz audio tone across 88-108 MHz, reaching up to 100 yards. This innovative circuit, utilizing a 555 timer and JFET transistors, allows you to create custom remote controls or security systems. Achieve precise frequency tuning with an 8 X 32 bolt inductor and fine-tune performance for optimal range and signal strength.... [read more]

Build your own sensitive AM radio receiver with this detailed schematic, achieving crystal-clear reception of Los Angeles stations using just 9 volts! This project utilizes a 200-turn inductor and germanium diode for optimal performance, boosting your signal and unlocking the power of radio.... [read more]

Build a powerful long loopstick antenna for enhanced AM radio reception. This 3-foot PVC pipe design, utilizing 500 turns of #24 copper wire, achieves approximately 213 uH inductance – perfect for tuning between 33-330 pF. Optimize your signal with precise winding techniques and placement for exceptional results.... [read more]