I just bought this 612nm ORANGE NOS tube from Lightparts in Austin Texas. It was the last one they had!
I have decided to sell it to buy some other Halloween related electronics I need. I have listed it on Ebay http://www.ebay.com/itm/191341204721...84.m1555.l2649
This laser is unused except for the 20 minutes I ran it to test the power output. I used a Coherent Lasercheck Power meter (NOT INCLUDED IN THE AUCTION)set for 612nm wavelength.
To test the laser tube, I used a brand new Laser Drive HeNe 2400vdc 5.25ma power supply (NOT INCLUDED IN THE AUCTION), let the tube warm up and then took several measurements over 15 minutes. I threw out the highest and lowest power measurements and then took an average.
The average power was 4.79mW, AND IT IS ORANGE!
I then put a diffraction grating (NOT INCLUDED IN THE AUCTION) in the beam...and big bonus, it is MULTILINE. It is lasing at 3 or 4 wavelengths generating different shades of Orange, yellowish orange.
I bought this from Lightparts in Austin Texas and it is definitely an NOS tube - 612nm Orange. I was lucky to get it when I did because this was the last Orange tube they had.