Hilberling RF Power Amplifiers

Hilberling RF Power Amplifiers Type Freq (MHz) Power Gain HJA – 2000 H  1,5 … 30  2000  63 dB HJA – 500 V  20 … 100  500  57 dB HJA – 2000 V  20 … 100  2000  63 dB HJA – 1000 U  100 … 500  1000  60 dB HJA – 500 U  500 ……

KG4JJH’s FT-817 Vocal Master Kit

I had a lot of fun operating low power with my Yaesu FT-817 portable HF transceiver, but have often wished that it had some audio or RF processing to add a little SSB punch. There are some excellent audio processing access – sories available commercially, but I thought this would make a great home-brew project…

Reuter DR50B HF QRP Transceiver

The German “RDR50B” is a radio receiver with transceiver option and based on DSP (two 16-bit ADC). He has a 18 cm (7 “) wide screen with touch panel. The entire unit is operated via this touch panel and the control knob. The desired settings can be tapped directly on the display and then changed…

Tokyo Hy-Power 400 Watts Linear Amplifier HL-450B

The HL-450B has a built-in auto band-select function. It uses a newly developed micro processor based technology, and works a smooth automatic operation when driven by the radio in either SSB or CW mode. In addition, manual band setting is possible as well. It is designed to be “user friendly”. Since the HL-450B is compatible…

Amplifier Research : Model 10,000A250A, M1, M2 10,000 Watts CW 100kHz–250MHz

The Model 10,000A250A is a self-contained, air-cooled, broadband, completely solid state amplifier designed for applications where instantaneous bandwidth and high gain are required. Push-pull MOSFET circuitry is utilized in all high power stages in the interest of lowering distortion and improving stability. The Model 10,000A250A is equipped with a Digital Control Panel (DCP) which provides…