500 watts RMS amplifier for 1.8 to 30 MHz HF linear 50v LDMOS MRF300 Ham
Contact info at the bottom. Proudly made in the USA with local, imported parts and original Ampleon transistor. I'm building quad, single and dual LDMOS transistor amplifiers, I can build any of them per your requirements. I can sell you a power supply ready for the amplifier for an extra cost. 500 watts RMS (or Average or Bird watts), 800 watts PEP, 2x MRF300, front gain control and SSB switch, internal relay to turn off bias when stand by to reduce heating. 10 watts RMS max input (default is 10 watts but I can adjust this to any requirement, example 100, 50, 25 watts, etc) RF sensing for TX.
Other measurements are done with a Fluke scopemeter/oscilloscope. All wattage measurements are off the air using a CDI 50 ohms 10kw terminating load (dummy load). Good ventilation, cool room temperature, 50 volts power supply with 20 amperes, ammeter and 12 volts power supply are required to operate this amplifier. You fail to do this, the amplifier dies, you decide.
MRF300 transistor is RUGGED, but that doesn't mean it will not fail, you can literally cut the antenna cable and it will not die, but you go more than 16 amperes (this amplifier with 2 MRF300), you will have shooting stars, please don't try cutting the antenna cable..... DO NOT OVERDRIVE THE AMPLIFIER.As a reminder, please don't overdrive the amplifier. Don't forget to use a Low Pass Filter on Ham radio bands, don't forget to NOT OVERDRIVE THE AMPLIFIER and the good ventilation with cool room temperature is very important, if you left your amplifier to melt itself like a Chernobyl reactor it's your fault, you been warned. Please make sure you follow all FCC rules, this amplifier is not intended to be used on Citizen Band (CB), to be used without a low pass filter in the Ham bands(160-6 meters), to use it with more than 1500 watts in the HAM bands or to use it in digital mode. The power output of this amplifier will vary depending your radio, antenna, frequency, coax, SWR and any other circumstances. I will continue to improve the amplifier so maybe the pictures are outdated. The item "500 watts RMS amplifier for 1.8 to 30 MHz HF linear 50v LDMOS MRF300 Ham" is in sale since Thursday, August 13, 2020. This item is in the category "Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Amplifiers".
- Year Manufactured: 2020
- Brand: vijovame
- Custom Bundle: No
- Supported Modes: AM
- Model: 2 Aspirin
- Type: Linear Amplifier
- Power: 500 watts RMS
- Country/Region of Manufacture: United States
- Manufacturer Warranty: None
- Band: HF