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Old December 28th 07, 05:52 AM posted to rec.radio.amateur.homebrew
[email protected] WA4SZE@gmail.com is offline
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First recorded activity by RadioBanter: Jul 2007
Posts: 20
Default Selecting power Fets for 500 KC transmitter

Greetings!!!


I plan on building a 500 KC transmitter, 200 watts output. I have
never worked with power FETS before.

What is the selection method used in determining which FET to use??
I see some great FETS
cheap.

Example: IRFP254

250 volt Vdss

RDS on .14

Amps 32 amps

Rise time : 51 NS

Cost; 2.50 each

The data sheet does not spec any freq's ( Ft) like bipolar
transistors?? How do I select the right FET??? freq range

Thanks!!!

The 500 KC transmitter will run at 28 VDC