Yes RF, there are half a dozen or more of perfectly good boards stacked on the bench now, but this one looks like I may stick with it.
I used the whole kinsten board 114 x 165mm as it covers the entire PJ fet board.
The effect of this makes the slow revving fan do an even better job, as it only turns slowly, but at 2.4kw for the last hour or so, the ambient temp of the incoming air is is 24.1c, and the heat sink temp is barely 2 -3C above that... must be very efficient.
Still pinch myself to believe this is all real... works way too well for such a simple thing... better than commercial stuff in the start up stakes, and every bit as good for everything else.... better than the selectronic on some loads.
Todays pics of the new board in operation running the house.
Incoming air is 24.1c... heat sink is only 26-27
Been running between 2-3.5kw all morning... washing machine , hot water etc.
The kinsten 114165 fits nicely, helps air flow of the fins and the tip35's
I have more inverters now than I can poke a stick at.... and I can't even blow them up.
............oztules
ps for RF... this is not exactly the same, but the differences are not dicernable really for practical puproses using it for guidance. The pdf is the real screenfor the board shown.. basically identical.