Here's an Excelitas LC501 capacitor charging power supply.  These are typically used to charge up a large bank of capacitors to a high voltage for a sudden discharge, often in xenon lamp or laser applications.

We purchased this charger directly from Excelitas 5 years ago for a project that never materialized.  It's completely unused and has just been sitting on the shelf.  Cost was $1700 originally.

No warranty, but if it arrives non-working I will certainly accept a refund at my expense.