← HP3455A teardown - part 1 - calibration module and the backside

Calibration module PCB

By | Published 2013/11/03 | Full size is 800 × 594 pixels

The calibration module PCB - bottom

The calibration module PCB - bottom side - note the high impedance traces and posts and connector in the middle. To avoid leakage they used special standoffs to maximize resistance.

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