Robert Morein <morepub@...>
With apologies for my query, because this is related to a Lecroy scope, I think I've found a replacement HV multiplier: an ECG-501B.
Unfortunately, this part does not appear on vendor webpages, either as an ECG or an NTE (who bought ECG last year.)
This is an ordinary five diode multiplier, with a simple tap off the first stage for focus.
The form factor makes it feasible to fit under the HV shield in the Lecroy.
Where could I get this thing?