Capacitor replacement question

Wurlitzer_1800 · by **Wurlitzer_1800** » Wed Jan 02, 2013 11:44 pm

Hi guys, I'm restoring a couple of old radios and I have to replace the multi section cardbord electrolytic capacitors. I couldnt find the same value caps. Can I replace a 50uf, 50uf 150V with a 47uf, 47uf 160v? And also can I replace a 80uf, 40uf, 150v with a 80uf, 47uf 160v? I know you can go higher on the voltage but I'm not sure if I can change the capacitance this much? Thanks

by **Ron Rich** » Thu Jan 03, 2013 3:14 am

As far as I have been "learned"--You NEVER want to use a lower voltage cap--higher is OK--
As for uf---47 uf is the same as 50 uf--for some reason, makers have changed the way ratings are written. Old rule was never go lower then 10 % on uf rating--if not a "timing circuit", 100% larger value is of no problem--HTH Ron Rich

Wurlitzer_1800 · by **Wurlitzer_1800** » Thu Jan 03, 2013 7:24 pm

Thanks Rich, I'll use them both.

zohaa3492 · by **zohaa3492** » Mon Jan 12, 2015 8:59 am

Good luck