Hi All,
Do these capacitors look ok for use as the primary (post rectifier) cap in a tube power supply? They look suspiciously like motor run caps but aren't marketed that way. Current ratings look to be quite high.
Appreciate any thoughts!
Greg
Do these capacitors look ok for use as the primary (post rectifier) cap in a tube power supply? They look suspiciously like motor run caps but aren't marketed that way. Current ratings look to be quite high.
Appreciate any thoughts!
Greg
They would work just fine, although they could be quite a bit better than you need. They are not cheap, either.
I used a pair of similar 47 uf 500 vac film caps from genelec for B+ supply in my H182 organ. Were rated for motor use. I'm tired of replacing electrolytic caps every 8 years. Were so big I had to mount them in a separate chassis. No problem. Ran a 600 v rated twinax cable to them, + versus return. Its been 11 years since I installed them.
Check out Apex Jr on the auction site. He has 75uf 600v polypropylene film caps for &5 each! I use them on my B+ Supplies.
They could certainly be used for motor runs, but are rated higher current for general purpose filtering. Would be a nice find if you found some surplus, cost a pretty penny at regular price. They’d never need replacement, even in highly stressful use.
