Well I must be stupid then !

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Sold a quasi complimentary output 300 watt mosfet amplifier on ebay.

The buyer emailed me tonight saying that it didnt work and I was stupid because when I built it I put in two irfp240's instead of a irfp240 and an irfp9240 !

He tells me he is an expert on amplifiers because he builds them all the time.

How do I break it to him gently that he isnt as smart as he thinks he is and it is possible to have two N channel MOSFETs on an output ?

I guess I could ask him to look up quasi complimentary?

I guess my 30 years of experience in design counts for nothing lol
 
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