New KPA1500 solid-state amplifier won’t take over your entire desktop: it’s just 4.5 x 13.5 x 11.5” (HWD; 11.5 x 34 x 29 cm). The lightweight companion power supply can be placed on the floor or in any other convenient location.
The KPA1500 was designed with the serious operator in mind. Its no-nonsense front panel shows all important parameters at a glance, with a high-contrast 32-character LCD and fast, bright LED bar graphs. Band switching is instantaneous, via control inputs or RF sensing. Protection and monitoring circuitry is extensive and foolproof, letting you focus on the job at hand — breaking pileups and overcoming the most difficult operating conditions. And it wouldn’t be an Elecraft amp without robust PIN-diode T/R switching. Like our KPA500, the KPA1500 offers fast QSK without a noisy relay.
The amplifier’s rugged internal ATU can handle full power with load SWR up to 3:1, while a wider matching range is allowed at lower power, including up to 10:1 in standby mode.
When it’s time to make waves, you can rely on the compact, quiet, highly integrated Elecraft KPA1500.
The Automatic HF/50 MHz Linear Amplifier OM2000A
The automatic linear amplifier OM2000A+ is designed for all short wave amateur bands from 1.8 to 29 MHz (including WARC bands) + 50 MHz and all modes. It is equipped with an FU-728F ceramic tetrode....
Chinese AMPTEC LA4000 HF Linear Amplifier 2016 Latest product - HF 4KW Linear Amplifier 1.8-30MHz + WARC amateur radio bands.
Using Chinese pair "FU728F" ceramic tetrodes at Class AB1
Driving power: 5-80W.
Output power: 4000Watts. (3000 Watts...