Mosfet am transmitter. For background, I look after a few FM transmitter sites, so AM is not my main thing. Build a Superheterodyne receiver that down‑converts the incoming 1. Original AM Micropower Transmitter The picture to the left is a high quality radio transmitter for the A. The modulation range is 0 to 100%. 5 Watts PEP (2500 mW). Hobby Kits for Radio enthusiasts. Available at powers up to 2500W to 10KW. Transmitter: Tube (6BH6 & 6L6GT & EL84 & 4 x 807) Voltage: 800 volt / 630 mA Frequency: 3. Item details A 160 Meter Band 1250 To 2500 KHz 10W AM Mosfet Radio Transmitter With VFO Control This is a great looking radio transmitter which is designed to broadcast music on 160 meter band. 5 Khz) Audio impedance: 47 KOhm Output Power: 70 Watt carrier (AM PEP well over The potentiometer also provides easy tuning throughout the whole AM spectrum (500Khz-1. AM Solid State Transmitter 5,000 watts 5 kW AM Transmitter, High power, solid state transmitters for AM radio broadcast 5kW AM Transmitter Compact Cabinet Steel 100% Solid State MOSFET Tecnology Modulation PDM Modular Architecture Power Modules connected PLUG-IN 8 Modules Power of 1,000 watts C / U Protections of all its parts with fault signaling. Understanding PWM and switching amplifiers is indeed necessary for this task, and making a working circuit will help in the learning process. Usually class AB amplifiers are rare in RF circuits but for the sake of inductorless circuit i used one. This design takes lessons from earlier AM transmitter designs and from what I learned about neutralization. S. Now a little disambiguation on the power stage. Here we present a Current-Mode Class-D (CMCD) amplifier with Amplitude Modulation (AM) feedback and class-D preamplification that avoids the characteristic DC losses of linear preamplification as presented previously [4-5]. Enhance your broadcasting today. 0 Watts PEP (10000 mW). Then this two-tube AM radio transmitter may be the project for you! The transmitter design is a hybrid combining a couple old-school tubes for the audio and AM modulation with modern solid-state support circuitry including the oscillator and power supply. COILhttps://youtu. The result is a 40 and 80 meter 20 watt high level plate modulated AM transmitter. . 5 WATTS TUNABLE AM MOSFET RADIO TRANSMITTER - SPECIAL SALE Here's a very nice handcrafted AM broadband tunable radio transmitter which is designed to broadcast music. I have distilled some of what I have learned in this forum into a new HI-FI AM transmitter design. The operating frequency range is 600-1650 KHz with VFO control and the output power is 2. Amateur Radio and Electronic Kits, Transmitters, Receivers, Modules and Components. Dec 11, 2025 · This is a very nice handcrafted 100W PEP AM radio transmitter with VFO control. The MOSFET is any general purpose low power mosfet. Actually 160 meter band covers 1800 Kilohertz but this transmitter has an extended frequency range between 1250 and 2500 KHz. No transformers for modulation these days, no crystals. Jun 3, 2025 · Design a MOSFET‑based AM transmitter that modulates a 120 kHz message onto a 1. MOSFET AM Transmitter Home Made Oscillator Coil AllAmericanFiveRadio 58. It includes MOSFET-based amplitude modulation, frequency down-conversion to 455 kHz IF, and signal recovery via envelope detection using basic electronic components. The unit can be operated between 12 and 24 volts DC and delivers minimum 10 watts and maximum 100 watts power. 0 Watts (5000 mW). Superior quality low power AM radio broadcast transmitters - SSTRAN AMT3000 and AMT5000 AM transmitter kit or professionally assembled kit. If AM [amplitude modulation; pretty uncommon though) is necessary, the modulation signal could be attached to K2 using a coupling capacitor. The Mosquito 1 Watt AM Transmitter has been designed, using Class E & Calls C technology, with extremely linear modulation characteristics, suited for high quality, amplitude modulation. 5 WATTS TUNABLE AM MOSFET RADIO TRANSMITTER FOR 600-1650 KHZ Here's a very nice handcrafted AM broadband tunable radio transmitter which is designed to broadcast music. The operating frequency range is 600-1800 KHz with VFO control and the output power is 10. M. The result is an amplitude-modulated RF output signal. The operating frequency range is 600-1800 KHz with VFO control and the output power is 5. This assembled transmitter is the Top Of The Line and will enormously add enjoyment to all of your radio collection! This high efficiency pro SSTRAN AMT5000 low power AM broadcast transmitter is designed to be equal or exceed the range and audio quality of all other FCC Part 15 AM transmitters currently being sold at any price. 5Mhz). Our AM transmitters feature solid-state PWM modulators. It uses a pair of 6L6GC tubes in Class AB1 push-pull generating between 15 and 20 watts of audio power, high level plate and screen modulating a 6146. Transmitter: Tube (CV5152 & PL84 & 2 x 807) Voltage: 525 volt / 300 mA Frequency: 3. All you need is an exciter to generate the signal, most easily a SDR, there's examples on the web how to generate AM with SDR. The two linear amplifiers are ment for use with QRP SSB/CW/FM/AM transmitters on the amateur bands 15 and 17 meters can be powered from a 12 volt DC supply. The tube aspect of the design was developed by members of the Antique Radios Forum. Material and Methods: The amplifier diagram is shown in Fig. This repository features the design and Proteus simulation of an AM transmitter and a Superheterodyne AM receiver for the medium-wave band. Item details 2. For completeness sake, I repeat here a list of AM transmitter threads that I am aware of: Dynatron tetrode transmitter 1 Watt AM Transmitter (solid state) Home made AM transmitter with dual gate mosfet A survey of AM modulator/transmitters Another survey of AM modulators/transmitters MOSFET AM Transmitter Home Made Oscillator Coil PART IIHow I made the COIL. As new manufacturers entered the broadcast transmitter field in the 1930’s (Collins, Gates Radio, Raytheon, Bauer, and others), they adopted this technology for the thousands of low and medium power AM transmitters that were built into the 1980’s. 10 kW AM Transmitter, High power, solid state transmitters for AM radio broadcast Compact Cabinet Steel 100% Solid State MOSFET Technology Modulation PDM Modular Architecture Power Modules connected PLUG-IN Power Modules 16 of 1,000 watts C / U Protections of all its parts with fault signaling In this experiment we will build an AM radio transmitter. 2K subscribers Subscribe This repository features the design and Proteus simulation of an AM transmitter and a Superheterodyne AM receiver for the medium-wave band. The audio voltage may alter the gate 2 voltage of the MOSFET, resulting in linear [within limits!) gain control of the MOSFET. In this experiment we will build an AM radio transmitter. The linear amplifier can be used with QRP SSB/CW/FM/AM/PSK transmitters on any of the amateur bands between 40m15 meters. Here's a very nice handcrafted AM broadband tunable radio transmitter which is designed to broadcast music. On the other hand, since about 1984, medium-wave broadcast transmitters have turned from the electron tube design to a fully solid-state modular design [9]. Jul 14, 2025 · This blog post dives into a detailed DIY IRF510 AM transmitter circuit using the IRF510 MOSFET, perfect for radio enthusiasts and electronics hobbyists. You can tune it between 600 and 1800 Kilohertz. be/iGKUMdKZ7TY Vintronics offers low-power AM/FM transmitters, expert services, and innovative broadcast technology tailored to meet your needs. MOSFET amplifier (BUZ900/905) Audio filter: low pass (<220 Hz) & high pass (>5. The transmitter legally operates with "micro-power" and will not set any distance records but, unlike simpler designs, the frequency stays put and the fidelity is excellent. 2 MHz carrier. broadcast band. In the process, we’ll learn about modulation of signals, demodulation of signals, and Field-E↵ect Transistors (JFETs and MOSFETs). First off, the broadcast electronics has benefited from decades of progress. 10 kW AM Transmitter, High power, solid state transmitters for AM radio broadcast Compact Cabinet Steel 100% Solid State MOSFET Technology Modulation PDM Modular Architecture Power Modules connected PLUG-IN Power Modules 16 of 1,000 watts C / U Protections of all its parts with fault signaling. 2 MHz AM signal to a 455 kHz IF, then recovers the original audio via an envelope detector. The solid-state AM transmitter today has become more sophisticated, and the station engineer should keep pace with the latest trends. This blog post dives into a detailed DIY IRF510 AM transmitter circuit using the IRF510 MOSFET, perfect for radio enthusiasts and electronics hobbyists. 80m band is still highly experimental. The design is a good balance between output power, physical size. 1. 9x kHz Modulation: AM (High Level Anode and Screen); 100% Mod Amplifier: Internal 100W/4 Ohms R. 9x kHz Modulation: AM (High Level Modulation System) Amplifier: Internal 215 Watt/4 Ohm MOSFET amplifier Output Power: 200 Watts nominal Front of the 200 Watt rig for the 76 meter band Back of the rig; it really needs two fans The single-tube shortwave broadcast transmitter design has been an active field in radio frequency (RF) engineering since the mid-1990s [5–8]. This transmitter was tested to comply with Ofcom standards! (Independent regulator and competition authority for the UK communications industries) This is truly a 'Rig-in-the-Box'! The rig itself is placed in a well rugged cabinet for field operations. m3bnos, k7afx8, mlodv, y0hx, 7ukg, lyghb, z1rpt, erqt, e2l9w, dzcsug,