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. SPECIFICATIONS: Manufacture / Part Number: Melles Griot, model 05-LHR-007 Output Power: 0.4 mW minimum Wavelength: 632.8 nm RED Polarization: Random Mode: TEMoo Beam Diameter: 0.34 mm Beam Divergence: 2.40 mRads Light Exit: Cathode end of tube. Operating Voltage: 1220 VDC (with 68 K ballast) Start Voltage: 8 KV Operating Current: 2.7-4.0mA, 3.2mA Ideal Recommended Ballast Resistor: 68 K Ohms, 2 Watt (Add in series to the anode lead within 3″ of the tube.) Recommended Power Supply: E-15, DG-15 Dimensions: 4.66″ (118 mm) long x 0.89″ (22.5 mm) diameter Warranty: Limited 30 days from date of purchase.
