HP3455A teardown - part 1 - calibration module and the backside

Calibration module PCB

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.

Bookmark the permalink.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.