OK, I'll try to get the $ to you as soon as I can.
BTW, do you know if these tubes run fine on a 2.50kV-3.1kV @ 6.5 mA Power supply or do I need it to be 7mA like the seller said?
I'm not sure yet. the old spec sheets I had from the 80s used to say 2460 @ 5.5mA for the older tubes, but now most of them say 6mA usually, and around the 20" tubes say 6.5mA.
I'll be finding out their operating specs when I get them and find a relative optimal. usually the yellows and such are at lower pressure, and thus lower current. some have a peak where if you go over it then the power declines, so i'll look for that curve, if its incremental, then I'd say 6mA is a safe bet. I don't think i'd go above 6.5mA. 7mA+ might be a bit much, and is usually reserved for the 21mW+ 26" tube set, such as a uniphase 1145, or a LHR-845/921. as you're just needlessly burning up the cathode, and thus -possibly- shortening its lifespan. not that there's any shortage of hours they can run, and REO and spectra physics lasers typically have a big cathode, so they have long lives. A 1.8-2.45kV @ 6mA is what my old REO came with, but a 2.5-3.2kV supply runs most all large lasers pretty easily too. I honestly use my Voltex lab S-28-00 more than any other supply, since that 2500-3200V range is where most larger tubes fall, or very close. and as the tube ages, that'll give it room to grow. but i'll let you know what I come up with when they arrive.
If I dont have the money by tonight, the seller is leaving for dallas tomorrow, so i'll end up paying out of pocket for them, both for speed of shipping (hopefully) and to keep ebay from yelling at me. So your preferred deadline is tonight,
at which time the tubes become mine if not paid for. (though that doesnt mean I still won't give them out)
Depending on what the tube outputs are and where they test at, i'll post the results and we can all decide what we feel each one is worth (so they all total up to $1025) then send payments/refunds accordingly-be it one tube is +/-$30-50 or whatever, etc.
