Temperature protection, overcurrent protection, input and output detection, high and low level, transistor, PA and ATU-through can be switched, only you need to enter 5W, 30MHz or less 120W, 50MHz 100W.
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Chinese HF power amplifier SSB CW 1000W MOSFET VRF2933 copper and heat sink no LDMOS
HF power amplifier 1000W with modern MOSFET transistors VRF2933.
See Youtube video about this MOSFET VSWR ruggedness https://www.youtube.com/watch?v=bMEsEATudgM
Assembled and tested PCB with matched quad of transistors VRF2933 - 1000W output.
Transmission line output transformer on 43 material cores.
The Sunair T-10000A is the hallmark solution for mission-critical communications applications requiring hemispheric coverage. The transmitter system combines solid-state RF power amplification and control technology to produce a failsafe high power solution, and operates in a frequency range of 1.5 MHz to 30 MHz.
Maximum power output is 10 kW to facilitate long-range hemispheric communications when...
2000W tube linear amplifier "HF2015DX" Amplifier. Price $2280 USD.
Available also Automatic version of PA - "HF2015DX-A" (Price is unknown).
RF Linear amplifier covered 1.8-30MHz amateur band , using Chinese FU728F ceramic tetrodes working at Class AB1
Input:30-40W output: 2000W ;
Input:60-70W output: 2600W( no recommend) .
3rd Order: -34dbc
Protection:exceed anode temperature;...
Multiple antenna outputs
Touch screen full colour display
Linearisation feedback output
Full protection for overdrive/
Aluminium main chassis
90-260V 50-60Hz power input
Dimensions 370w x 360d x 180h mm
460KHz to 50MHz all bands 1kW output
High spectral purity
Fully automatic band selection
Gemini HF-1K is a solid-state...