Rectifier Section Component Question

[vmazz]

I have a Kustom 72 Coupe that had a short across the .01 1kv capacitor across the leads before the rectifier. My question is , how is the value of this cap considered in the circuit? Could a .1 uf or 500pf 1kv cap be substituted? Does it seem odd that the fuse prior to the cap did not blow? The mains fuse did however blow. I have isolated the short to that cap for sure.
Thanks.

[Jon Snell]

Assuming you did a continuity test with the capacitor off the board, Fit a 10nF 1kv disk ceramic. That is what is there at present and if it is not, that is why it failed.

[Mick Bailey]

F1 is a time delay fuse. The mains fuse is likely to be fast blow, which will open at a lower current than the peak current of F2 (even factoring the transformer ratio). C71 is a snubber cap and I would stick to the original value as the manufacturer should have arrived at this calculated from circuit parameters. There is a fair margin of tolerance, though. What's the reason for wanting to substitute a different value?

[The Dude]

Assuming you did a continuity test with the capacitor off the board, ......

^^^^^^^ That. Did you measure the cap out of circuit? If not, you'd be measuring the parallel transformer winding, which would be very low resistance. Temporarily remove the fuse to check the cap.