I have a part that I need to replace but unsure of what it is. I think it is a cap but hard to find this style.
Pic attached
Its 5.6uF 100V
Pic attached
Its 5.6uF 100V
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It is part of a crossover for an Alpine F1 series car audio speaker system for the mids and highs. Just wondering if it is a cap because it is so large. Might be a couple of years old.Well, 5.6 uF is an odd value. The 100 volt part is easy enough, though. What does it do?
The electrolytics in my catalogs mostly jump in value from 4.7 to 6.8 uF.
I am planning to build these crossovers myself. The speakers are Alpine SPX-137R Manual hereThe coils have inductance that attenuates high frequencies when they are in series with a woofer or a midrange speaker. The inductance can be calculated if you know the frequency and the impedance of the woofer at that frequency.
I think the woofer has the left inductor in series and the 22uF capacitor in parallel.
And the tweeter has the 12uf capacitor in series then the coil to ground then the 5.6uF capacitor in series.
I like the light bulb current-limiter on the right side for the tweeter.
You want the resistance to be as low as is possible so the woofer gets full power.
Are you building another circuit like the one shown in your attachment, using the Alpine crossover for a reference?I am trying to figure out what type and size of air coil to use.
I did not think of that I have a few laying around. ThanksFrom Alpine.
If those are 1 1/4" X 1/4" clips, we used to have a collection of sawed-off potentiometer shafts for blow-proof fuses. All it's gotta do is conduct.
Yes I am trying to duplicate that circuit. How do I find the Q of the coil? I could then put that info on the forum to help with the diagnosis of the circuit.Are you building another circuit like the one shown in your attachment, using the Alpine crossover for a reference?
I'm confused by "size and type of air coil to use", when the circuit looks complete.
--ETA: Thread was in cache and didn't refresh. The value needs to be calculated for the coils, in uH/mH. The DC resistance (0.5 Ohm/0.4 Ohm) is only relative to the Q of the inductor, and not the actual value.