Capacitor rules

Mar 01, 2023 Last reply: 2 years ago 2 Replies
D

Hi folks I'm really new with electronics. Doing a massive project for a retro computer system and, as a prong of this project I'm attempting to locate a modern equivalent of the board components. Enter the tantalum capacitor. Having gone to digikey, mouser, and newark none of them seem to have the item I'm looking for in stock.



What are the rules about alternate values? The tantalum cap I'm looking for, according to the service manual, has the following rating:


1uf,10v, +-20%.

The DIP style cap that the board uses isn't in stock anywhere so would I be able to substitute this cap for 1uf, 20v, +-20%?



Thanks,



Daniel


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J

I tap electronic tubes to see if they are good, but you say he tapped capacitors? Electrolytics I guess, might show issues when tapped, like poor internal connections.

Interesting hadn't really thought of that as a test for caps...

John :-#)#

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W

John Robertson wrote on Sun, 7 Jul 2024 23:44:49 -0700:

I used to press the tops of old electrolytic capacitors. When they were bad they would pop up like the safety lid on food jars after you open them. Maybe they get soft on the sides on too.

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