Date: Thu, 10 Oct 2002 07:22:27 -0600

Author: "Zigmund J. Peacock"

Subject: Re: Cathode ray tubes for demos

Post:

Tony, I believe what Paul is looking for is the Davidson-Germer tube.
The one that shoots a beam of electrons at four targets.
If anyone finds one of these it will be a miracle, my unit has a burned
target
in at least one of the four possible. Zig


"Paul D. Price" wrote:

> Friends,
>
> I have a set of very old cathode ray tubes with a ZnS screen to
> "recreate" various experiments regarding Thompson and the discovery of the
> electron. I am looking for a possible supplier in the event one breaks.
> Does anyone have an idea for a supplier? I have not found one in my
> standard catalogs...

Zigmund J. Peacock WWW.physics.utah.edu/people/staff/peacock.html
University of Utah/Physics
peacock@physics.utah.edu
115 SOUTH 1400 EAST #201 Tel 801 581 6602
SALT LAKE CITY UT 84112-0830 Fax 801 581 4801

"We sleep safely in our beds because rough men stand ready in
the night to do violence to those who would do us harm"
-- George Orwell

"All that is necessary for the triumph of evil is that good
men do nothing!"
-- Edmund Burke

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