6 Dec
2007
6 Dec
'07
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.