INSTALLATION of Genuine New/NOS Keysight 5519 Tube in your 5519A/B Laser 375+ uW

Description

This listing is for the
REPAIR
of YOUR HP / Agilent / Keysight 5519A/B laser with a
NEW
/NOS genuine Keysight 5519B laser tube
.
The output is at least 375 µW and has been tested in a monitored interferometer by Laser Sam of Sam's Laser FAQ for a minimum of 8 hours.
The result will have the performance of a 5519B laser even if your laser was originally a 5519A.  However, if you can only use a 5519A, it should be possible to modify it accordingly.  The difference is in the REF frequency spec - 3.4-4MHz for the 5519B, 2.4-3 MHz for the 5519A.
This tube can also be installed in a 5518A or 5517A and will function correctly if your measurement system supports the higher REF frequency of the 5519 tube.I will do the swap for the same price, or provide a 5517A laser body with this 5519B tube for 0 additional.
This tube comes with a
60 day warranty
(see terms below).  An extended warranty may be available.  Inquire for details.
The buyer is responsible for shipping the laser to me.
The listing is only for the tube replacement, NOT a complete laser except as noted above.
If it turns out that the fault with your laser is NOT the tube and it still has acceptable performance and life, the cost will be much lower based on time and parts.
For overseas buyers, using your FedEx account is an alternative to the eBay Global Shipping Program for the return shipping.  If interested, please contact me before buying or making an offer.
Thanks for looking! :-)