Today the PA got re-installed again at the 1296 moon beacon.
We got several suggestions on the mods, following modifications have been done to the W6PQL PA . The output board has been glued to the copper spreader using Silver Epoxy ( CW2400 ) Soldering the components back to a new board has been done using Pb , Sn , Ag solder ( 2% silver ) A new MRF13750H has been soldered to the heat spreader 4 output capacitors in parallel are on the output mounted vertically VDD is now at 40 VDC output power is around 400 watt. We cross our fingers and hopefully these modifications will hold.
Galerie: Diplomy ARI
Galerie: Seminář 2015 - Henryk SP6GWN
Galerie: Frenštát 2016
Galerie: Seminář 2018 - poslal Henryk SP6GWN
Galerie: Seminář 2014 - Petr OK1AXH
SP6MLK, SP6GWN, SP9MLT
Galerie: Seminář 2004
Galerie: Seminář 2015 - Milan OK2IMH