[TowerTalk] [Amps] Bill Orr comment

Peter Voelpel df3kv at t-online.de
Wed Jul 23 15:15:17 EDT 2008

1500 output at 70% efficiency requires 1500/0.7! 2143W input, 
The difference is the dissipation of 643W.


-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of chasm at texas.net
Sent: Mittwoch, 23. Juli 2008 19:59
To: towertalk at contesting.com
Subject: Re: [TowerTalk] [Amps] Bill Orr comment

Peter Voelpel wrote:
> 2-2.5 times the dissipation is normal. 
> Assume 1500 out, at 70% efficiency that is 643W dissipation,
> Eimac claims 75% efficiency on their 3CX3000A7 datasheet in AB2.
> 73
> Peter

I am sorry but I do not understand your numbers using my Construction Master

I multiply 1500 by 70% = 1050

after all, 50% would be 750.

please explain to this old phart what I am missing here.

73 de chas/k5dam

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