TSP #223 – Teardown, Repair & Analysis of a Tektronix THDP0100 ±6kV High Voltage Differential Probe

In this episode Shahriar repairs another high-voltage Tektronix probe, this time a THDP0100 which is capable of measuring 6kV signals up to 100MHz. The probe does not get detected by the scope. However, it soon becomes clear that the problem with this probe is much more involved than the previous repair.
The probe has a short-circuit inside the probe body as well as several damaged components. Each is replaced one step at a time until a final fault is also detected in the probe head. After the repair, the probe is zeroed, calibrated and used to measure a signal at 6kVpp using an Associated Research HYPOT tester.


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