6 Dec
2007
6 Dec
'07
4:35 p.m.
I have an FAA control room keyboard that I picked up off ebay. Each
key has a little bulb underneath it that lights up the keys for use in
the dark. I need to get some replacement bulbs since some of them
have burned out. I haven't disassembled this thing enough to know if
they have parts numbers on them or not.
Does any of this sound familiar to anyone? I'm thinking that the
bulbs burning out has got to be a regular occurrence and that the
bulbs are therefore probably socketed and not soldered, but again I
didn't disassemble it that far to know. The keyboard assembly inside
is labelled MicroSwitch IIRC.
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Legalize Adulthood! <http://blogs.xmission.com/legalize/>
6 Dec
6 Dec
4:57 p.m.
On Dec 6, 2007 4:35 PM, Richard <legalize at xmission.com> wrote:
I have an FAA control room keyboard that I picked up
off ebay. Each
key has a little bulb underneath it that lights up the keys for use in
the dark. I need to get some replacement bulbs since some of them
have burned out. I haven't disassembled this thing enough to know if
they have parts numbers on them or not.
Does any of this sound familiar to anyone? I'm thinking that the
bulbs burning out has got to be a regular occurrence and that the
bulbs are therefore probably socketed and not soldered, but again I
didn't disassemble it that far to know. The keyboard assembly inside
is labelled MicroSwitch IIRC.
Not knowning anything about this device I would toss out a guess that
the bulbs might be similar to some of these Chicago Miniature bi-pin
lamps.
http://www.mouser.com/catalog/632/94.pdf
I bought some of these as replacements for the HP-2100A front panel
buttons. I'm pretty sure there was a part number screened onto the
lamp that could be looked up in an x-ref somewhere to find the
appropriate replacement.
Pop a keycap off your keyboard and see if you can pull a lamp straight
out and see what you find.
6:49 p.m.
In article <1e1fc3e90712061657v64cf1e51g39a17b0beeb19f93 at mail.gmail.com>,
"Glen Slick" <glen.slick at gmail.com> writes:
Thanks! That looks like just the place for me to start!
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://www.xmission.com/~legalize/book/download/index.html>
Legalize Adulthood! <http://blogs.xmission.com/legalize/>
7 Dec
7 Dec
1:09 a.m.
On Friday 07 December 2007 00:35:13 Richard wrote:
I have an FAA control room keyboard that I picked up
off ebay. Each
key has a little bulb underneath it that lights up the keys for use in
the dark. I need to get some replacement bulbs since some of them
have burned out. I haven't disassembled this thing enough to know if
they have parts numbers on them or not.
I'm going to take a random guess and suggest that they might not be a million
miles away from the little wedge-base bulbs in car dashboards. For obvious
reasons, 12V and 24V versions are incredibly easy to get.
Gordon
8 Dec
8 Dec
8:38 p.m.
On Friday 07 December 2007 04:09, Gordon JC Pearce wrote:
On Friday 07 December 2007 00:35:13 Richard wrote:
Sounds like the #194, I think it was, that some of my vehicles use all over
the dash and for markers too.
But that's a relatively short and squat bulb. There was another "wedge
base"
that I ran into, in some switches I have here. I remember seeing bunches of
these on some equipment or other, with different legends on them, and in
all sorts of different colors. The ones I have are mostly green or orange
caps, salvaged out of some bit of telco test gear that also had a whole mess
of 24V and 48V relays in it. I vaguely recall looking up a bulb like that
one time and finding that it was only available in two ratings -- a 5V type,
and a 24V or 48V type, and they weren't cheap.
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, ?a critter that can
be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
I have an FAA control room keyboard that I picked
up off ebay. Each
key has a little bulb underneath it that lights up the keys for use in
the dark. I need to get some replacement bulbs since some of them
have burned out. I haven't disassembled this thing enough to know if
they have parts numbers on them or not.
I'm going to take a random guess and suggest that they might not be a
million miles away from the little wedge-base bulbs in car dashboards. For
obvious reasons, 12V and 24V versions are incredibly easy to get. 
9:41 p.m.
I was thinking of perhaps T 1 3/4 flange base. They're found in a
lot of indicators, though the T 2 "slide base" lamp is another
possibility.
The T 1 bi-pin lamp is another option, I suppose.
CML is the usual source of these. I note that they now offer LED
replacements for some of the miniature panel lamps. At any rate,
here's a catalog:
http://www.cml-it.com/pdf/psg_200607.pdf
Most of the big distributors (Newark, Mouser, etc.) carry these.
Cheers,
Chuck
9 Dec
9 Dec
1:32 a.m.
On Sat, 2007-12-08 at 23:38 -0500, Roy J. Tellason wrote:
On Friday 07 December 2007 04:09, Gordon JC Pearce
wrote:
The difficulty is that in other countries they're called different
things. The ones used in the side lights and indicator side repeaters,
as well as the instrument backlights is a fairly big fat bulb about the
size of the top joint of my pinky.
The ones I meant are about 4mm x 13mm and are the same as the ones used
in the panel lamps on an RL02. Guess where I got the spare bulbs for my
RL02 from?
Gordon
On Friday 07 December 2007 00:35:13 Richard
wrote:
Sounds like the #194, I think it was, that some of my vehicles use all over
the dash and for markers too. I have an FAA control room keyboard that I picked
up off ebay. Each
key has a little bulb underneath it that lights up the keys for use in
the dark. I need to get some replacement bulbs since some of them
have burned out. I haven't disassembled this thing enough to know if
they have parts numbers on them or not.
I'm going to take a random guess and suggest that they might not be a
million miles away from the little wedge-base bulbs in car dashboards. For
obvious reasons, 12V and 24V versions are incredibly easy to get.
6224
days inactive
6226
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6 comments
6 participants
participants (6)
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cclist＠sydex.com -
glen.slick＠gmail.com -
gordonjcp＠gjcp.net -
gpearce＠curiousgroup.co.uk -
legalize＠xmission.com -
rtellason＠verizon.net