[Amps] Class-E Amplifiers

[jeremy-ca]

Arent Class E monoband amps and pretty much with a 7 MHz upper limit?

At least that was what I was told by an active E builder who had a 400W 75M 
AM amp inside about a 17 x 12 x 3 chassis minus the PS. I was impressed but 
I still like the glow of my 250TH's and 304TL's ! Even tho it takes up a lot 
of space and weighs a ton.

Carl
KM1H

----- Original Message ----- 
From: "Bill Fuqua" <wlfuqu00 at uky.edu>
To: "AMPS" <amps at contesting.com>
Sent: Friday, February 29, 2008 10:12 AM
Subject: [Amps] Class-E Amplifiers


>     Class E amplifiers have high efficiency but what about gain and drive
> power. Some that I have see have about 10db gain but  unlike tube type
> Grounded Grid amplifiers
> I don't think any of the input power goes to the output. If so this would
> reduce the overall  efficiency of a single stage amplifier  and driver if
> the driver is not  Class-E.
>
> 73
> Bill wa4lav
>
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