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QRO - The MOSFET Power Amplifier 2 x 300 Watts

Prototype of QRO, experiments with cooling

The picture here shows my experiment with extra thick mounting plate for the MOSFET's. 20 mm thickness increases quite noticeable the ability to transport heat. The disadvantage is that the screws have to be isolated and the G and D pins of the MOSFET's have to prolonged.

The heatsink I attached to the mounting plate was a really big mama, 5 kg!

The picture here is a detail of the mounting plate for the output transistors.
The picture here shows the top view of the handmade prototype.
people have viewed this page since 2002-12-20.