FW: [Collins] Peculiar Request - 872A

AI2Q [email protected]
Fri, 31 Jan 2003 18:44:45 -0500


-----Original Message-----
From: AI2Q [mailto:[email protected]]
Sent: Friday, January 31, 2003 4:48 PM
To: 'Zap (Chris)'
Cc: Collins (E-mail)
Subject: RE: [Collins] Peculiar Request - 872A


Hi Chris:

Your idea is terrific. I used to have a homebrew PP 813 rig years ago that
used two 872A tubes. I still have one here, so I would be interested in
knowing how you make yours ionize (what voltage is needed to strike the
gas).

BTW, I used to let the tubes vaporize the mercury initially for one hour.
Thereafter, a 2-minute warm-up was all that was needed.

I have some large glass jeweled lamp holders here in green and red. They
include bulbs. Might you be interested in these? I can take a JPEG or two
along with a scale if you'd like to see them.

Watsa?

== Vy 73, AI2Q, Alex in Maine  .-.-.



-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Zap (Chris)
Sent: Friday, January 31, 2003 3:41 PM
To: [email protected]
Subject: [Collins] Peculiar Request - 872A


Greetings to the list,

(My apologies if this hits twice, I sent to the old list address by
accident!)

I had a few questions concerning where I might be able to find some Collins
or look-alike parts for a small project I am working on.  For a while now I
have had the desire to create a unique lamp for the shack, and I finally
found the right part - a 872A mercury rectifier tube, which will emit a
purpleish-blue color when the mercury is vaporiz.........................