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1.2 mW red (633 nm) HeNe laser head, Siemens, with custom power supply
1.2 mW red (633 nm) HeNe laser head, Siemens, with custom power supply
1.2 mW red (633 nm) HeNe laser head, Siemens, with custom power supply
1.2 mW red (633 nm) HeNe laser head, Siemens, with custom power supply
1.2 mW red (633 nm) HeNe laser head, Siemens, with custom power supply
1.2 mW red (633 nm) HeNe laser head, Siemens, with custom power supply
1.2 mW red (633 nm) HeNe laser head, Siemens, with custom power supply
1.2 mW red (633 nm) HeNe laser head, Siemens, with custom power supply
1.2 mW red (633 nm) HeNe laser head, Siemens, with custom power supply
1.2 mW red (633 nm) HeNe laser head, Siemens, with custom power supply
1.2 mW red (633 nm) HeNe laser head, Siemens, with custom power supply

1.2 mW red (633 nm) HeNe laser head, Siemens, with custom power supply

$ 85.53

Availability: 100 in stock
  • Modified Item: Yes
  • Country/Region of Manufacture: Germany
  • Intended Use/Discipline: Physical Laboratory
  • Brand: Laser-Siemens/Power Supply - custom
  • Return shipping will be paid by: Buyer
  • Condition: Used
  • All returns accepted: Returns Accepted
  • Custom Bundle: Yes
  • Restocking Fee: No
  • Item must be returned within: 14 Days
  • Model: Laser-LGR 7631A
  • Bundle Description: Laser-original/Power Supply - modified
  • Refund will be given as: Money Back

    Description

    For sale is a small single transverse mode (TEMoo), red (633 nm) HeNe laser tube in an original metallic bracket and a power supply for 115 VAC mains (picture #1). The laser tube is type LGR 7631A, made by Siemens, Germany, in March 1985 (pictures #2 - #3). Its metallic bracket has slots for aligning it on a bench. The power supply of this laser is a brick-type, model 4009439, made by Laser Drive, Inc., USA, in Nov. 1985
    (it came with the original laser tube)
    . This particular brick needs also a 5 VDC power supply. The Laser Drive brick and the 5 VDC additional power supply, from a phone charger, are mounted in a Uniphase box from which the original damaged brick was removed (pictures #4 - #7). An original replaceable 1.0 A fuse is located inside the Uniphase box. The laser and the power supply are used, but in surprisingly good condition. They were p
    rofessionally tested during long time operation.
    The output beam power is 1.2 mW,
    making it a Class 3R hazard type of laser (for visible HeNe lasers, powers between 1 mW and 5 mW; pictures #8 - #11). The beam polarization is random.
    The warm up time is cca. 20 min. Good for educational experiments in optics, alignment, holography, for hobbyists, or as a collectible item.
    Pictures' explanation: #1 - what you buy and get - the laser tube with metallic bracket and the modified power supply in a Uniphase box; #2 - #3 - the laser tube; #4 - #6 - modified power supply; ; #7 - schematic of the Laser Drive brick with colored wires and their destination;
    #8 - #11 - measuring the output power by using a professional laser powermeter (the measuring equipment is not for sale); #8 - #9- zeroing the detector; #10 - #11 - full laser power.