Quick update. I received the new Jantzen BP caps and they had the exact same readings as the ones I took out of the crossovers. So it looks like the original electrolytic caps are still good. I may still replace the old caps since I have new ones of the same specs just to help extend the life of the crossovers.
I’ll test my LCR meter with some normal caps too just to make sure it’s reading them accurately.
ten-d
New Member
Last Activity: 02-18-2024, 04:49 PM
Joined: 01-30-2024
Location: San Antonio, TX
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Thanks stj - I would love to learn this but how would you be able to determine at which frequency is the correct frequency to test the cap's ESR at without being able to look at the data sheet for this particular cap? The esr is all over the place for this cap at different frequencies so how do you know which one is the correct esr? Thank you!Leave a comment:
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Thanks for the reply redwire. I appreciate it.
Ahhh. Okay. I was wondering why it was such a high capacitance. So the 4.7 uf film caps are for the tweeters then? I was trying to find a crossover schematic but there doesn't seem to be one online for my version of the L810's and I'm so not experienced enough to figure this stuff out quite yet.
I've got a DER EE DE-5000 LCR meter. I have the tools but still am learning how to interpret what these things mean.
No L-pads on this set. The person I bought them from was the original owner and was not tech savvy...Leave a comment:
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Interesting that they are making replacements. I just went over to mouser and checked for a new equivalent but having trouble finding one. I'll keep looking for a bp cap.
Do you think that the cap I have and tested is bad?Leave a comment:
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Nippon Chemi-con 100uf 100v BP electrolytic cap
Hi all!
I just bought a pair of ADS L810 speakers, which I've heard are some of the best speakers from that time (late 70's) into the early 80's. I was super excited to test them out and hooked them up and I was very underwhelmed by the treble. The treble was awfully muffled. I've been doing some restoration work on 70's stereos and a couple of speakers here and there so I am really just a beginner. I do know that capacitors in speaker crossovers filter out the lows to allow only the highs up to the tweeters and mids. Inductors filter out the highs to allow the lower frequencies to...Last edited by ten-d; 01-30-2024, 05:21 PM. -
Hi everyone! Somewhat newbie here. I've been learning electrical repair for about a year now. All on my own. No mentor or anything. Just reading books and watching videos online. So I'm picking up info as I get it? I'm working on restoring stereo equipment from the 1970's. Receivers mostly and some speakers. Looking forward to learning more!Leave a comment:
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