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.
← HP3455A teardown – part 1 – calibration module and the backside
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.