[Amps] EIMAC Confusion

[Steve Thompson]

----- Original Message -----
From: mark <mark@sandlabs.com>
To: <i4jmy@iol.it>
Cc: amps <amps@contesting.com>
Sent: 13 November 2002 12:44
Subject: Re: [Amps] EIMAC Confusion


> Thank you all for the replies :)
> I am  a Solid State kind'a guy. There, things are relatively simple. TOTAL
> DEVICE DISSIPATION (TDD) is DCV times DCI`. The ratio between TDD and
OUTPUT
> POWER  (OP) defines the
> efficency of the device. For example a 100W TDD transistor delivering 50W
OP
> is sayd to have
> a 0.5 (or 50%) efficency.
In this situation, isn't efficiency rf output divided by dc input?

Max. device dissipation is just that, a maximum limit of (dc input minus rf
output).

Where tube specs. refer to anode dissipation, I reckon they are discounting
grid and heater/filament power.

Steve