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Re: [Amps] "Conventional" current flow

To: amps@contesting.com
Subject: Re: [Amps] "Conventional" current flow
From: K9FFK <k9ffk@comcast.net>
Date: Fri, 2 Dec 2016 17:03:18 -0600
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Electrons travel from a heated cathode or filament to the anode. Charge is a characteristic associated with the electron (much like the color blue being associated with sky).

Electron speed in a vacuum tube is approximately equal to the speed of light. This speed defines the transit time and thus upper useable frequency of the tube.

Nothing travels from anode to cathode. (No protons, no positrons.) Residual gas molecules may be ionized and end up at the cathode or the anode.

"Holes" are a convenience tool to explain certain characteristics and operation of solid state devices. Allowing "holes" to be equal a negative thing does not change tube theory. Results are same, same.

OK...flame suit on...

Dick K9FFK


On 12/2/2016 10:52 AM, Mike Waters wrote:
Thank you for your comments, Al. But in an amplifier's vacuum tubes (as
Jim, myself, and others discussed earlier in this thread), are charges
moving from anode to cathode opposite the flow of electrons?

73, Mike
www.w0btu.com

On Dec 2, 2016 10:19 AM, "Al Kozakiewicz" <akozak@hourglass.com> wrote:
Current is the flow of charges, not particles.  Charges are carried by
particles such as electrons (negative) or ions (positive), but the particle
itself is not the charge.  Charges aren't a physical object that has mass
or occupies space. Just like gravity - it can be measured and its effects
observed and felt, but you can't point to a gravity object.
In the case of electrons it is most definitely NOT like a river. ...
Actual electrons drift about the conducting medium at rate of something
like 1 meter per hour. On the other hand the charge is propagated at near
the speed of light. Negative charges flow one way; positive the other.
It adds nothing to the understanding and application of electric circuits
to change the convention for current flow.
Al
AB2ZY
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