#16
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Well I looked and I didn't see any capacitors that were in the 30-32 MFD 50v Range I'll just use the 10 MFD 50 Volt Non-polar crossover caps that they have at radio shack, as they are still within the original specs and the voltage is higher than the original which will make it operate a lot better than the original. Last edited by Captainclock; 08-10-2015 at 11:02 PM. |
#17
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Well I replaced the final coupling cap in the amplifier and sure enough the noises went away completely on the Magnavox and it plays perfectly now.
I was playing an old Harvest album on the record player and the electric bass notes were going extremely low on one of the songs on the album and the audio this stereo was producing was so good that it was quite literally making my walls and ceiling in my basement rattle to the beat of the song and the stereo wasn't even touching the wall or anything. Anyways I had picked up the 10 MFD crossover caps at Radio Shack (or what I thought were the 10 MFD crossover caps) but when I got them home and went to install them I got a look at them and they turned out to be regular polarized electrolytic capacitors but when I installed them I didn't realize it until it was too late but what's weird is that the capacitors didn't explode or anything and they actually seem to be working at filtering the high and low frequencies like a regular crossover cap would, so would it do any harm to run this stereo with polarized caps in the crossover or should I actually go back to radio shack and get the actual crossover caps and put them into the speakers? |
#18
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If they are getting reverse polarity such as DC bias in the output or from half the audio waveform it may eventually detonate, short or open the cap....I'd either switch to non-polar caps or if there is DC bias there above the peak AC of the speaker system (unlikely) make sure the polarity is correct for that.
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Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4 |
#19
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#20
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Home Depot had and may still have capacitors for ceiling fans. You might be able to get enough to create the desired value, non-polarized.
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Audiokarma |
#21
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Well I know that Radio shack has some capacitors like what I need I think what I did was just grabbed the wrong ones by accident.
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#22
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I don't remember having to replace non-polarized crossover caps. Start hitting the streets on trash day for discarded ceiling fans, or maybe the thrifts. Another thought is, look for discarded speakers that have rotted surrounds. Depends on the make, some have real impressive crossover networks. |
#23
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#24
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e , designed some crossovers on their website.
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"When resistors increase in value, they're worthless" -Dave G |
#25
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Audiokarma |
#26
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Only the best is barely good enough for the Audiophile nuts
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"When resistors increase in value, they're worthless" -Dave G |
#27
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Apparently, but with my budget I have to work with, my mom would flip her top if I would try to spend $50+ on capacitors when a simple $.30 capacitor is good enough for my purposes.
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#28
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Try looking up some Teflon with silver foil caps, they can go into the hundreds of dollars for a single cap. That seems just a little over the top to me.
Gregb |
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