[Amps] 2 kW amp project

Bill Turner dezrat1242 at ispwest.com
Sun Nov 20 10:58:21 EST 2005


At 03:35 AM 11/20/2005, Peter Chadwick wrote:

>There's an interesting article on a 1500 watt Class E amp in the 
>latest QEX. Looking at it, the thing is that by the time you've got 
>the mechanics done (including a fearsome output transformer with 
>silver (hard) soldered bits and pieces) and the vacuum variables for 
>tuning, it's about as big as a tube amplifier covering all the HF bands.......
>73
>Peter G3RZP

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Not being a QEX subscriber (maybe I should be) I'd like to hear more 
about it. I considered a SS amp before beginning my current 8877 
project but was stopped by two things:

1. A suitable power transformer for 50 VDC 50 A output.
2. The output filtering and matching network for all HF band operation.

Both of those are doable of course, just a bit easier with a tube amp.

I'd be most interested to hear how folks solved those issues.

73, Bill W6WRT




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