Solartron 7081 - Mods & More for 8.5 Digit Voltmeter

The first 500 people to use this link will get a 2 month free trial of Skillshare Premium Membership: https://skl.sh/marcoreps14
Alarm Clock & Bench DMM 🙄 http://bit.ly/2vGPV4y
DMMCheck Plus Reference https://www.welectron.com/DMMCheck-Pl...
TS100 with USB-PD aka Otter Iron: https://github.com/Jan--Henrik/Otter-...
Behind the scenes stuff sometimes:   / marcoreps  
Datron Milling Bits https://datronshop.de/
(used in this vid: 6mm 4in1 0068806A 20k RPM 700mm/min feed)
Resistor Encyclopedia by zlymex https://www.eevblog.com/forum/metrolo...
'KX' LTZ1000 Reference https://xdevs.com/article/kx-ref/
My LTZ1000 video    • Ultra Precision Voltage Reference and...  
Solartron 7081 Modding https://doc.xdevs.com/docs/SOLARTRON/...

In this video we are taking a closer look at a special precision voltmeter that was so far ahead of its time that it is still a powerful tool today. I am taking a few measurements of an LTZ1000A voltage reference to turn them into statistics. Then I am taking apart the Solartron Schlumberger 7081 bench top voltmeter to find opportunities for improvement. I am CNC machining a new front panel segment to fit Pomona 3770 low thermal EMF binding posts. Finally I am installing an ultra-precision LTZ1000A voltage reference, but the new components have to settle down before we can see any results.