Helium-Neon Laser Tube: Uniphase 098-1, 1.3 mW
This is a Uniphase model 098-1 helium-neon laser tube removed from a
supermarket barcode scanner. It is in excellent condition and has been
tested, producing 1.3 mW after a 10 minute warmup. The tube requires a ballast
resistance of 75K ohms, and power supply capable of 1,300 V at 3.7 to 4 mA with
an 8 kV start (not included). It is 243 mm (9.6 inches) long by 26 mm
(1.05 inches) in diameter. Beam diameter: .75 mm, divergence: 2.6 mR (can be
improved with a positive lens), random polarization. I'll also toss in a set
of four (4) 27.4K resistors to use for the ballast resistance (3 should be
sufficient but some power supplies may be happier with 4, not shown) and
plastic HeNe tube mounting brackets.
Winning bidder pays fixed shipping cost of $5.00 in the U.S.A., $6.00 to
Canada. Sorry, no sales overseas. Money orders or cashier's checks
preferred. I will accept personal checks from people I've dealt with before.
Please do not bid unless you are serious about following through on your
committment and are aware of the dangers associated with the
high voltage power supply required to operate this device and the laser
beam it produces. This is not a toy.