Amplifier has -4 dB attenuator on input for better impedance matching and increasing the driving power for about 2W at 1000W output. A temperature regulated bias circuit and a high power low loss wide band transmission line type transformer are used in amplifier.PCB Size: 37 x 100 mm input and 67 x 100 mm output. Drain voltage: 50 - 60V Drain current : 35A max Idq: depends of LDMOS used according to datasheet, 1A suggested for BLF188XR.
Copper spreader plate does not need to be milled for transistor installation. The item "1.2 KW LDMOS power amplifier boards 1.8-54MHz HF BLF188XR BLF578 MRF1K50 MRF1K8" is in sale since Tuesday, December 24, 2019. This item is in the category "Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Amplifiers".The seller is "r3kbo4" and is located in Voronezh. This item can be shipped worldwide.