3-28MHz 30W Short Wave Power Amplifier Board CW SSB Linear High Frequency rf power amplifierName: Shortwave Power Amplifier BoardFrequency range: 3-28MHzInput power: 0.1-3WOutput power: 30W (7MHz) 13.8 volts about 15W when pushed by PIXIE 0.2W, about 30W when pushed by Frogsong Kit 2.5WOperating voltage: DC 12-13.8VWorking current: about 6A MaxSwitchover mode: Automaticpcb size: 60x100mmThe finished board and parts are equipped with a cooling plate, but the cooling fan is not included. A cooling fan is recommended for daily use.The power cord can be directly welded to the pad, which can withstand more current.Colour:As ShownMaterial:PCBPackage Contents:1 x Amplifier BoardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.