[Amps] New NXP BLF578XR 1200W LDMOS FET is "indestructible"

[MIKE DURKIN]

So how much already ??
 
... i just found a power supply that delivers 50V @ 60A .....
 
Mike KC7NOA
 
> Date: Sat, 23 Jul 2011 16:04:49 -0400
> From: jeff at wa1hco.net
> To: garyk9gs at wi.rr.com; Amps at contesting.com
> Subject: Re: [Amps] New NXP BLF578XR 1200W LDMOS FET is "indestructible"
> 
> Gary...
> 
> Some YouTube videos...
> 	http://www.youtube.com/watch?v=02v58cnb41o&feature=relmfu
> 	http://www.youtube.com/watch?v=-EACUpIhpac
> 
> F1JRD also has an article in Dubus
> 	http://www.qsl.net/f1jrd/MRFE6VP61K25H.html	
> 	http://www.w6pql.com/1_kw_2m_ldmos_amplifier.htm
> 
> jeff, wa1hco
> 
> 
> 
> On 07/23/2011 12:24 PM, Gary K9GS wrote:
> > Hello Jeff,
> >
> > Any pictures available of the copper heat spreader, aluminum plate, etc??
> >
> > On 7/23/2011 10:34 AM, jeff millar wrote:
> >> This email describes what I've learned from looking at these modern transistors
> >> for the last few months.  It seems to me like a fundamental crossover point has
> >> been reached.  Silicon processing technology has produced rugged VHF/UHF
> >> transistors, with reasonable impedance matching for a reasonable cost,
> >> especially considering all the other costs associated with an amplifier.  These
> >> parts will only get better and cheaper as time goes on.
> >>
> >> Brian, WA1ZMS, brought a dual MRFE6VP61 on 2 meters (2 x 1250W) to the last VHF
> >> contest.  The parts are $271 each at Digikey...
> 
> 
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