Hardware Podcasts

Calibration & Repair with Ian Johnston

The Amp Hour · 22 Aug 2023 · 1h 09m · Episode 643

What this episode covers

Ian Johnston, a Scottish YouTuber and manufacturer, discusses his PDVS2mini DC Voltage Calibrator, explaining how he transitioned from the oil industry to full-time content creation and small-batch hardware production. He details the design evolution of the PDVS2mini, including component choices like the LM399 voltage reference and 20-bit DAC, and his manual assembly process for batches of ~50 units. Johnston also shares insights into his automated calibration workflow using a Keysight 3458A multimeter and his experiences sourcing and repairing test gear from eBay, including sales to high-profile clients like CERN.

Most relevant to

early-stage companies

Topics

Mentioned

Companies
Keysight, CERN
Products
PDVS2mini, U1272A, Keysight 3458A
Chips
LM399, ATmega328
Also
eBay

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