150W_23cm_PA Under construction..... 2 x 2C39B Cavity topview... 2 x 2C39B Cavity bottom view 2 x 2C39B Cavity input tuning... Air flow through chimney... 150W on the Daimond SX1000 Power meter... 350mA current, Ua=1100V DC Coolant air from bottom into cabinet... (needs a cutout in radio-table, but gives good air flow and small appearance once installed) Cabinet interior, Powersupply, timers, Bias...