DIY LM399 LT1001ACH Precision 10V DC Reference PCB Mini Metrology Lab Trimmable

DIY LT1027 10V DC Reference PCB Mini Metrology Lab Trimmable

Dust-free Paper Optical Fiber Cleaning Wipes Clean Time Over 600+ for Bare Fiber

Davidson D-622 Reference / Spindle mirror, good condition, no original case.

Precision Matched Pair Reference Standard Capacitors 2.2000uF 0.02% Tolerance

Davidson Optronics - model D-616 - Reference Mirror

AD584 High Precision Voltage Reference Module 4-Channel 2.5V/7.5V/5V/10V

Fluke Instrument Meter with +/- 1-Volt Scale 100-0-100 uA Full Scale