Greetings all! I'm doing a recap on a Paco C-20 and C9 calls for a .02 uf, 400V, tubular, precision. Can I use one of these three, or do I need to get the exact capacitor? Thanks in advance!
None of those units is "precision", apparently 10% or 20% tolerance.
What is the purpose of C9 in that unit?
Normally, to replace a 400 V tubular capacitor, I would use an axial-lead polypropylene unit, with voltage rating 400 V or more (600 and 630 V are common).
If you have an LCR meter, you could sort a few to get the best result, or buy 0.01 uF units and sort to get a good pair.