Testing Capacitors Part 2

This is the correct way to test capacitors, testing them for leakage by applying the rated viltage first.
Than testing them for capacity using a capacitor bridge.

Category:

Education

Tags:

• Education
• Antique
• Electronics
• Radio
• Repair
• Capacitor-Bridge
• Testing
• Leakage
• Rated
• Voltage

[samoged]

How would the capacitor behave when volted if it was no good?

[old64goat]

@samoged, IF the capacitor was bad (leaky) you would not be able to apply the full RATED voltage on it without the capacitor drawing lots of current, even as little as 1MA is too much.

The CRA-1 cap tester I showed in this video also has a current meter and a good cap (non-electrolytic) should NOT show any current draw.

[coolbluelights]

Great video! I really need one of those capacitor analyzers but they look expensive

[old64goat]

@coolbluelights Hi Bryan, You should be able to find them on Ebay.

[chrilla1980]

This tutorial was real great.

I have a question for you tho.

I´m going to replace a bad capacitor on an Harman Kardon AVR4000 surround reciever and the capacitors values are "SM 85°Celsius and it´s at 6800micro farads and the voltage is 16Volts" The original brand was YEC but i found a replacement from another brand "Nippon-chemicon" that has the exact same values but there is still one thing that concerns me and it´s the difference between a SM cap and an RM cap.What does SM and RM stand for?

[old64goat]

@chrilla1980 I have no ideo what a RM or a SM cape is, but if the voltage of the replacement cap is higher than 18 volts, that will be okay, just don't replace it with anything lower than 18 volts.

As fo temp I do not use metric so celslus mean nothing to me, I am from the OLD school...LOL.

6,800 MFD is fine, you can go a little higher but not lower in capacity.

Hope this helps.

[madisonelectronic]

I hope you do not have macular degeneration like my late neighbor had. He was an old time TV guy who started out in ww2 and what little I know he taught me. Knew zip about IC's but could talk for hours about tubes and old radios. He gave me his sams collection which started about 1 and went to 1560. His kid who never was around until he died wanted them I told the kid to kiss my a**. I am subscribed I hope when I check you are still making videos when I talk about tubes I get strange looks.

[yoududeuser]

Love it! "I did calibrate it but that was about 10 years ago"

[blade004]

I am only 37 and my Cornea has a scar on it now from a recent bout of severe Conjunctivitis :( I am starting to realize how you feel with the eyesight thing there mate ;)

[iorixs]

men like you built this society with its comforts and conveniences. thanks and all the best

[damadusha]

Thanks.. You have got a really nice collection of old equipments there. Can't believe they are still functioning well.. :)

[survivor030406]

great video, subscribed !

[Smith8340]

I just love your electronics videos. You have a manner and a presentation style that is so easy to watch, and things are explained in a way that makes sense. I love valve equipment too, and am currently restoring a Luxman SQ65 amp. Your knowledge is giving me additional tips, and I love seeing the great test equipment you used. Keep up the great work, we all appreciate you taking the time to pass on your experience.

[coolbluelights]

@old64goat Thanks, my name is Daniel by the way ;)