[TinCanAlley]

Originally Posted by Electronic M

You could probably go higher in voltage rating if the component package isn't excessively large for where it needs to live.
Voltage rating on a capacitor is basically the highest voltage you can apply across it and expect it to live. Higher voltage rating than stock usually means less failure prone than stock, though with electrolytics more than doubling the voltage can lead to the cap dielectric not staying formed up.

The next highest voltage is 14kV and the sucker is huge and screw in.

I think this is a Zenith "special" as the SM doesn't have the usual part numbers for other suppliers like it does for just about all other capacitors. It has their part number and I've found a few OEM and will get them.

I'm also having issues finding the diodes I need on Mouser. When I put in the part and values, it shows me exactly what I need, but mouser only sells them in quantities of 5000, so that's out. I did find on ebay a seller with 10 ECG506 for 16.95 delivered. I really only want to do this once, so I'm looking for quality components.