HeNe Laser Power Supplies – HP/Agilent/Keysight 5517/5501B Lasers – Fixed/Adjust

HeNe Laser Power Supplies - HP/Agilent/Keysight 5517/5501B Lasers - Fixed/Adjust

$25.0 Buy It Now or Best Offer
free,30-Day Returns

Seller Store siliconsam
(2852) 100.0%,

Location: Bala Cynwyd, Pennsylvania
Ships to: US,
Item: 303521961061

All returns accepted:ReturnsNotAccepted
Non-Domestic Product:No
Modified Item:Yes
Country/Region of Manufacture:United States
Custom Bundle:No
MPN:Agilent VMI PS253 PS503
Modification Description:Added access to current adjust pot (adjustable version ONLY)
VMI for Agilent/Keysight:VMI for Agilent/Keysight

These are guaranteed working HeNe laser power supply bricks for HP/Agilent/Keysight 5517, 5518A, 5519A/B, 5501B, and N1211A lasers.Adjustable current VMI PS 253 XOR VMI PS 503 Power Supply with DPM and Sense Resistor:VMI PS-253 and VMI PS-503 are HeNe laser power supplies intended for HP/Agilent/Keysight lasers that have been modified to provide access to the current adjustment. This allows for the current to be changed, which is useful for HeNe laser tubes that will not stay lit at the default current of 3.5 mA. Most such tubes will behave at around 4 mA enabling a laser that is otherwise useless to run for a few more months 24/7. Going much above 4.0 mA is not recommended, though the power supply is capable of at least 5.0 mA. These are complete with HP-5517/5501B connectors and mounting screws. Note: Mounting in 5517A, 5518A, and 5519A/B lasers may require hot-melt glue or duct tape as the mounting holes do not go all the way through the power supply case. Or holes can be drilled in the *laser* baseplate to match up with the power supply. These power supplies can also be used for other HeNe laser tubes with a current of 3-5 mA at 1.5 to 1.7 kV. The spec for the 253 is 0.1% ripple while for the 503 it is 0.01% ripple. For repairing most HP/Agilent/Keysight lasers this is probably irrelevant, but a lower ripple could be beneficial for a super low noise stabilized HeNe laser or similar application. The current will be set to your choice between 3.0 and 4.1 mA upon request. Otherwise, it will be set at the default 3.5 mA so it can be used as a drop-in replacement in most 5517 lasers. To change the current requires removing the metal lid and using a small flat blade screwdriver to turn the trim-pot screw while monitoring the current. However, with no spec’d current, some means of monitoring the tube current during initial setup (at least) will be desirable. So a Digital Panel Meter (DPM) is also included along with a 1K ohm current sense resistor. Putting the DPM across the resistor in series with the cathode return (via the 2 pin connector) from the tube will provide a readout in mA. Mounting screws will be included so it can replace those that are secured from the top. The metal case is connected to the negative input of the power supply internally. For 5501Bs, the case must be insulated from the chassis using an insulating sheet and plastic screws (included ONLY upon request).Adjustable current VMI PS 253 with LEADS ONLY: Similar to above but >3 inch wires ONLY, no connectors. For your DIY projects. See above for specs. Fixed current VMI PS 253 XOR VMI PS-503.These are unmodified and should work in all HP/Agilent/Keysight lasers where the tube stays lit at the default current. The nominal current is 3.5 mA ±0.1 mA. The metal case is connected to the negative input of the power supply internally. For 5501Bs, the case must be insulated from the chassis using an insulating sheet and plastic screws (included ONLY upon request).Fixed current VMI PS 148 XOR EMCO LP1600A: These were used in HP lasers prior to around the year 2000, but are fully compatible, tested and guaranteed. The nominal current is 3.5 mA ±0.1 mA.100K ohm Ballast with Male HV connector: These are for/from HP/Agilent 5517 lasers.Female HV connector with leads: These are for/from HP/Agilent 5517 lasers. THE LASER TUBE OR HEAD IS NOT INCLUDED! CAUTION: If the symptoms for your HP/Agilent/Keysight laser is that the laser beam sputters or flickers and won’t stay on solid at power up or during warmup, the cause is likely due to a laser tube that is high mileage and won’t stay lit at the default current. Replacing the power supply with a fixed current 3.5 mA supply will not fix it and the power supply may be destroyed by the bad tube. An adjustable power supply must be used. Note that buying a fixed current supply to save money with the intention of modifying it for variable current is not guaranteed to be possible (or at least easy). The VMI PS-148 and EMCO LP1600A are hard-potted. And higher SN VMI PS-253s and -503s are potted in a tough material that is not easy to cut into. Thanks for looking, — sam

Frequently Asked Questions About HeNe Laser Power Supplies – HP/Agilent/Keysight 5517/5501B Lasers – Fixed/Adjust in My Website

www.deafgirlsrescue.org is the best online shopping platform where you can buy HeNe Laser Power Supplies – HP/Agilent/Keysight 5517/5501B Lasers – Fixed/Adjust from renowned brand(s). www.deafgirlsrescue.org delivers the most unique and largest selection of products from across the world especially from the US, UK and India at best prices and the fastest delivery time.

What are the best-selling HeNe Laser Power Supplies – HP/Agilent/Keysight 5517/5501B Lasers – Fixed/Adjust on www.deafgirlsrescue.org?

HeNe Laser Power Supplies – HP/Agilent/Keysight 5517/5501B Lasers – Fixed/Adjust

Frequently Asked Questions About HeNe Laser Power Supplies – HP/Agilent/Keysight 5517/5501B Lasers – Fixed/Adjust in My Website

What are the best-selling HeNe Laser Power Supplies – HP/Agilent/Keysight 5517/5501B Lasers – Fixed/Adjust on www.deafgirlsrescue.org?

Leave a Reply Cancel reply