1200w HF Linear Amplifier board MOSFET 4x VRF2933 HI Power board copper
1200W MOSFET LINEAR HF RF POWER AMPLIFIER module. Lot looks like the one you see in the photo above - Board PA Unit.
Protection scheme is with the "sticky" status, i. Transistor key state is holding until you will connect ESC contact with the ground or OFF/ON the main +13,8V voltage for the protection board. The temperature control is separated for BIAS and for FANs from two thermistors. BIAS voltage are adjusted for each MOSFET separately and stabilized by, in this case, can by in range +12-15V. LED-IN, LED-FAN, indicators are on PA front panel.
The power measurement was measured with following set the set video is located above. Heat sink + Copper plate + PA Unit + LPF600. Power unit + 50V RSP-1500-48. Updated version for Solid State PA Unit DN-600 ver 2016 year.In PA Unit can be used MOSFETs: SD2933 , SD2943 , SD4933, VRF2933, VRF2944. With using MRF150 or BLF177: up to 600-700W output power. Unlike previous versions PA Unit for DN-600 , this version have additional stabilizing BIAS integrated, increased transformers size. Changed diagram and PCB topology. With those changes, possible to obtain up to 1400W on all bands 1,5-35MHz.
- Brand: Danuby
- MPN: Does Not Apply
- Frequency Band(s): HF
- Supported Modes: AM