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I got these off of e-bay today and tried to research them as much as possible, (which wasn't much) even Sam's does not list them.
Does anybody know anything about them, other then the obvious; <1-2mW, 632.8nm,etc.
I know these are ancient. (looks like 1978)
What are the odds of these working?
Do they use epoxy or frit (or other) seals?
Are these known for holding gas or are they bad about going up to air?
Does this look like the right PSU with them? (I know this is not a HV PSU)
Required HV input = ??V @ ?? mA?
Like I stated, I could not find anything on this tube number.
They sure look retro although.
Even if they don't laze, but the bore lights up, they would make nice lamps.
They listing states Model #389, but looking at the pics., it looks longer?:thanks:
Does anybody know anything about them, other then the obvious; <1-2mW, 632.8nm,etc.
I know these are ancient. (looks like 1978)
What are the odds of these working?
Do they use epoxy or frit (or other) seals?
Are these known for holding gas or are they bad about going up to air?
Does this look like the right PSU with them? (I know this is not a HV PSU)
Required HV input = ??V @ ?? mA?
Like I stated, I could not find anything on this tube number.
They sure look retro although.
Even if they don't laze, but the bore lights up, they would make nice lamps.
They listing states Model #389, but looking at the pics., it looks longer?:thanks:
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