HF power amplifier 300 400W 1.8-30 MHz without transistors SD2933 VRF2933
PA10-300W power amplifier 10W in, 300W out 1.8-54 MHz without transistors. This device is made for use with low power SDR radios , like ANAN-10, FLEX-1500 or QRP HF transceivers. With 3 to 4 W input power from SDR it runs solid 300W to your antenna.Max power 450W is limited by output transmission lines type transformer ratio. The amplifier's output is not filtered by LPF , so do not forget to add it. This amplifier may be used with any QRP HF transceivers like FT-817 or IC-703. This amplifier may be used with variety of transistors: SD2933, VRF2933, SD2943. Use matched pair for best perfomance. Measured by KC901H network analyser suppression of second and third harmonics (amplifier with diplexer) is: 10 meters 2nd -52 dB 3rd -55 dB 20 meters 2nd -54 dB 3rd -47 dB 80 meters 2nd -53 dB 3rd -51 dB. Power supply required is 48V 12A. Size 165 x 60 x 30(h) mm.
Drain voltage +48...53 VDC. Drain current (at 300W) 12A. The item "HF power amplifier 300 400W 1.8-30 MHz without transistors SD2933 VRF2933" is in sale since Thursday, December 28, 2017. This item is in the category "Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Amplifiers". The seller is "y_r3kbo" and is located in Voronezh.
This item can be shipped worldwide.Output Power: 450W
- Frequency Band(s): HF
- Amplifier Class: AB1
- MPN: Does Not Apply
- Country/Region of Manufacture: Russian Federation