Agilent 81634A Repair and Calibration
The HP 81634A is an InGaAs based power sensor module that was created to be used in the 8163 and 8164 mainframes. It operates in the 800 to 1700nm and is considered a high speed sensor. That model is the most difficult one to find on the used market so it is worth considering repairing. We have good success repairing that particular series of module. Send us an email with a problem description and we'll let you know our feeling. If you want to replace it, you can check 81634A for sale.