If you'll give me the dia & length of that "switchboard bulb" I can look for a match in my "stash of bulbs that I'll never use". I know there's a few of the switchboard types in there. They may all be of one standard size, actually. But let me know & I'll send you a few to tinker with.

Wayne
WB4OGM

-----Original Message-----
From: Joe Duszyński <joeduszynski1@gmail.com>
To: Jones, Douglas W <douglas-w-jones@uiowa.edu>
Cc: GREENKEYS@mailman.qth.net <GREENKEYS@mailman.qth.net>
Sent: Fri, Sep 17, 2021 8:46 am
Subject: Re: [GreenKeys] [External] Neon Bulb

Unfortunately, I'm missing the bulb.
If I even had a switch board bulb I could make one
just strip out the incandescent and replace it with a neon.
But alas I don't have any switchboard bulbs either.
At the moment I have a NE-2 just shoved in there with the leads wadded up on each side to make contact but if you move the thing it makes intermittent contact and I'd like to correct that!

On Fri, Sep 17, 2021 at 11:22 AM Jones, Douglas W <douglas-w-jones@uiowa.edu> wrote:
From: Joe Duszyński [joeduszynski1@gmail.com] -- Friday, September 17, 2021 2:15 AM

> Looking for a Neon Bulb.
> US Army Signal Corp PN 2z5888
> Littelfuse # 5122
> NSN 6240-00-223-9107
> Its a telephone style bulb but a neon with NO RESISTOR.

If you have a bad bulb with the correct base, it's just an NE2 bulb soldered in, so it should be possible to extract the bad bulb from the base and swap in an NE2.

       Doug Jones
       jones@cs.uiowa.edu
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