VK4KDD's channel

23cm PA using W6PQL PCB.

50 to 2500W AMPLIFIER CONTROLLER,

CAN BE USED AS SEQUENCER, PROTECTION, GLCD,SWR METER

ALL IN ONE VK4DD DESIGN

CAN ALSO BE USED FOR TRANSVERTER.

TH...

Antenna beam finder and Grid locator display

can be used from 2m to 10Ghz to setup your antenna / Dish.

Very portable unit.

The NEW Graphic LCD display by VK4DD.

144Mhz solid state projects

Testing the limits of the BLF248.

The BLF248 is rated 300W on VHF max VSWR 50:1.

So there must be a big fet inside ....

Can I get 500W out of 300W ...

ES on 144 MHZ 24 Jan 2009, in the shack of VK4DD, QTH Brisbane

We just made it a bit easier to build an amplifier. Now we have combined several circuits board into one. Have a look at the PA controller in my fo...