These are new, old stock,  hard sealed laser tubes for your OEM, replacement, or experimental needs. Other types of tubes may be available. Please  email us  for more information.


Output Power: 4.5 mW minimum, 6.0 mW typical, 8.0 mW maximum.
Wavelength: 632.8 nm RED
Mode: TEMoo
Beam Diameter: 0.50 mm
Beam Divergence: 1.8 mRads.
Light Exit: Cathode end of tube.
Operating Voltage: 2490 VDC (with 75K ballast).
Start Voltage: 10KV.
Operating Current Range: 6 to 7 mA, 6.5 mA Ideal.
Recommended Ballast Resistor: 75K Ohms, 5 Watt.
(Add in series to the anode lead within 3″ of the tube.)
Recommended Power Supply: DG-22, E-21, LAB-S-22.
Dimensions: 13.8″ long x 1.42″ diameter. (350 x 36 mm)
Warranty: Limited 30 days from date of purchase.