The PHILCO Phorum

I was recapping the Tube tester and was having some difficulty finding a 5uf 250v electrolytic capacitor. I have a 8uf 450 volt electrolytic.Is this an acceptable substitute?
Thanks in advance!

It depends where it is in the circuit.

http://www.mouser.com/ProductDetail/Corn...X1Hdo6Q%3d

http://www.mouser.com/ProductDetail/Corn...BvZ%2fE%3d
(might be OK, depends where in circuit)

http://www.mouser.com/ProductDetail/Pana...rFOO8a4%3d

etc.

HOW about ,,JUSTRADIO,,,,,CANADA

If it really is 8uf (test it) then it will probably be fine. The tolerance on the old electrolytics was something like -30% to +80%.
Most of the high-compliance parts in old testers are marked. If it is one of these marked parts find a close match.