TR-4

[Todd Orme]

I work in the Electronic sign industry, and we use what we refer to as
"wedgebase" lamps all the time (similar to automotive panel lamps). At any
rate, we use silicone lamp boots or covers to change the color of the lamps.
They are quite common in this industry. The lamp size that I have access to
is a T3 1/4 type (approx. .385" - .400" diameter). I have an HW100 at home,
and have not measured the lamps in it, but that seems about right. If so,
let me know, and I could probably round up a couple of samples for you.
Since they are made out of silicone, they hold up to the heat very well. Let
me know.

73's,
Todd Orme,  NV(T
Electronics Q/A Manager
Young Electric Sign Co.
Phone: (702) 944-4568
Fax: (702) 944-4501
Email: torme at yesco.com

-----Original Message-----
From: Heathkit Owners and Collectors List
[mailto:HEATH at LISTSERV.TEMPE.GOV]On Behalf Of Kenneth Laine Ketner
Sent: Tuesday, June 24, 2003 8:51 AM
To: HEATH at LISTSERV.TEMPE.GOV
Subject: Re: TR-4

While on the topic of filters in front of dial lamps, I saw something
interesting on a Heathkit dial lamp once. It was covered in some kind of
green thin plastic stuff, not pain, but something like a layer of
continuous shrink-wrappy stuff. It din't react to the heat, stayed its
color, and gave off the nicest green light, perfect for Heathkits.
Unfortunately the filament eventually went south.

Does anyone know if this sort of thing was manufactured in various
colors (I am aware the military had red dial lamps.

The real question would be availibility for purchase nowadays of ones
favorite color.

Would this have been a manufactured item or was my green lamp likely a
home-made deal?

If anyone knows how to home brew this working colored lamp, please let
us in on the secret.

--

Ken Ketner
ARS KA5ELD (Extra Class)
  Personal Webpage: http://www.wyttynys.net
  Office Webpage: http://www.pragmaticism.net
Email:
 home: ketner at arisbeassociates.com
 office: kenneth.ketner at ttu.edu

US MAIL
PO Box 65135
Lubbock, TX 79464

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