[Elecraft] Question about 120 volts vs. 240 volts house supply toKPA 500

dyno lab dynolab at comcast.net
Fri Sep 20 00:59:55 EDT 2024


I too put together a homebrew LDMOS broadband amplifier, It's running a pair BLF-189XR FETs and is very efficient.
However, due to the higher power output, I have to run it on 240 Vac.
It can be seen on my QRZ page.

73,
Hal
W7YNC


> On 09/19/2024 3:26 PM PDT jerry <jerry at tr2.com> wrote:
> 
>  
> Love the efficiency of solid state amps.  I have a homebrew LDMOS unit, 
> with
> a single MRF1K50.  I get 1100W output running off an ordinary 15A 125VAC 
> socket.
> Didn't get anywhere near that with my Alpha 78.
> 
>                            - Jerry, KF6VB
> 
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