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The Capacitor Replacement And Substitution Guide.
🕑 Added 2024-01-16 18:13:00 +0000 UTCUse this information to help guide you in your next repair or restoration. Lot's of additional capacitor knowledge passed on as well! Forum news at the end of this video.
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Comments
Rick Harrington The old Space Cadet.
Had a silver mica capacitor go bad. it went from 52 pf 1000 v to 30 pf and the transmitter was not sending the proper out put. when i replace it, it worked right now.
Stan Harwell
I have a Teac A-4010sl Reel to Reel that has Suzuki Oil JCP-A caps. I have ordered new electrolytic caps of the same value. They are known in the reel to reel communities as Suzuki bombs. Have you ever run across those?
Willliam Ackerman
I would suggest a 47 or 50 is in most cases are interchangeable. As a side note, it is probably most important to buy good quality electrolytic caps. Beware that replacements are high enough in voltage over what is called for with a safety factor.
Michael Carter
It depends on the application. If it’s for filtering (like a power supply filtering), go larger. In general, go larger. Some exceptions I suppose, like if it’s an audio response filter, will depend, so either may be ok. If it’s a critical RC time constant, anti-aliasing, etc., depending on the application, you should try to stick with the original design value, within the specified tolerances (e.g. +/- 10%, 20%, etc.). Hope that helps.
Jim Boyce
Newbie question: if I have to replace a known bad 47mfd electrolytic. Which would be better to use, a 44mfd or a 50mfd.? …if those are my only choices. They sent 47’s but they all read differently. Schematic calls for a 47. It’s rare I ever get exact caps from the manufacturer.
