[Milsurplus] Re: [ARC5] Hot meters.. more

[Todd, KA1KAQ]

Thanks, Scott.

Must be the blue stuff is tritium? 

I do have one old R-390 with original meters that are hot,
yellowish/brown and all but dead as far as glowing in the dark, but
still give the counter a twitch fit.It would appear that the later
R-390A meters are the 'Green(ish) phosphorescent' types except for the
odd blue/violet one.

Never checked the antenna relay meters for the ARC-5 or SCR-274N
stuff, but I do recall seeing one with the same yellow-brown
appearance. Wonder if anyone has a list online of older gear to be
careful of with respect to knobs?

On 5/4/05, Scott Johnson <scottjohnson1 at cox.net> wrote:
> Here's what I know (in general) about dial face paint:
> 
> 1.  White- non-phosphorescent,designed for flood lighting in vehicles or
> aircraft
> 
> 2. Green(ish) phosphorescent, needs UV stimulation to glow NOT Radioactive.
> This was used in earlier WWII aircraft and Link trainers with flourescent
> black lights.