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So can't I figure which lead is + in the circuit? Because the one's I picked up are polarized.
Never mind. Apparently CRT are obsolete everywhere in the World except here in South Africa. So, my time on this Forum is pointless..No point in me giving advice..or helping in any way. Unless I can help with Basics and trying to help with solid grounding...
Except that the capacitors in a speaker need to be non-polarised, not normal electrolytics.
Like the 32 inch Sony trinitron I am watching.... bought new back in 1996. Fantastic picture.Just because they are "obsolete" doesn't mean there aren't a s--t-ton hanging around (many perfectly usable, too);
Yes, to all questions. The voltage drive to speakers swings above and below ground or the virtual ground reference, so the voltage across the coupling caps is constantly reversing in polarity.how do u know? u worked on speakers before, or is there some theoretical reason that u know of that I don't?
how do u know? u worked on speakers before, or is there some theoretical reason that u know of that I don't?
True, you can get polyester or polypropolene film caps in this voltage and capacitance range. They are higher quality than electrolytics and preferred by audiophiles for caps used in the "audio path".Or get non-polarized caps made for cross-overs from any audio parts supplyer.
True, you can get polyester or polypropolene film caps in this voltage and capacitance range. They are higher quality than electrolytics and preferred by audiophiles for caps used in the "audio path".
True, you can get polyester or polypropolene film caps in this voltage and capacitance range. They are higher quality than electrolytics and preferred by audiophiles for caps used in the "audio path".
Good quality crossovers use poly caps, NP elevtrolytics are crap and have poor frequency response. Poly caps do cost more but you get what you pay for.But would be extremely large, and extremely expensive )if you could even find one) - which is why crossovers use non-polarised electrolytics.
**broken link removed**What Are the Differences in Capacitors?
There are a wide variety of capacitors available for use in crossover networks, each with their own characteristics. The 3 main types of capacitors are non-polar electrolytic, metallized polypropylene, and film and foil.
Electrolytic capacitors are the most inexpensive, and are generally used when budget is the primary concern. Electrolytic capacitors are often described as imparting a grainy or harsh sound to the input signal. If an electrolytic capacitor is to be used, usually it is best in woofer or subwoofer situations, where the large capacitor values needed make electrolytics the only economically feasible alternative. When electrolytics must be used, a second smaller capacitor of higher quality is often used in parallel to help improve overall performance. The greater the portion of the total capacitance that is made of the higher quality component, the better.
Metallized Polypropylene capacitors are the most widely used in crossovers