How much power have you run through that circuit? I'm trying to imagine 1000uf electrolytic carrying several amps without eventually putting on a spectacular show in itself.
It's the volts between the plates that matter. You can get bi-polar caps to 100V. For me, now that I looked, I used 17 470uF/50V bi-polar caps. Mouser p/n 647-UVP1H471MHD
F = 1/(2pi(R*C))
F = 1/(6.28 * 4ohms * 17*470uF)
F = 4.98 Hz
F = 1/(2pi(R*C))
F = 1/(6.28 * 4ohms * 17*470uF)
F = 4.98 Hz
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I used those values for testing tweeters. Absolutely don't use 1000uF for a sub. How many times have i repeated that in this thread so far? The medium of text in a forum just stinks
Sure, that's one way. Even simpler if say you are using an analog meter is to amplify it while removing extraneous DC and place paper over the back face and mark lines with a pen. done!
Do use the PC to align it
There are also volt meter chips that drive displays. You still have to condition the input to set things in the proper scale. The "removing DC" part is as simple as using an opamp with the non-inverting input offset from zero.
You can do a lot with a linear expression in the analog domain. And even non-linear expressions, too, but that's a whole different topic.
Do use the PC to align it
There are also volt meter chips that drive displays. You still have to condition the input to set things in the proper scale. The "removing DC" part is as simple as using an opamp with the non-inverting input offset from zero.
You can do a lot with a linear expression in the analog domain. And even non-linear expressions, too, but that's a whole different topic.
davygrvy
I may need to build this right into my ppp KT88 sub amp when I get around to building it. I have been working on a digital VU gauge, that and a coil temp on the front would look amazing. Should have no DC off set using an opt but how will this change the sound/output of the amp? Running a DC bias on the out of a OPT just sounds like a bad idea
and off topic but when you end a sentence with a smiley where do you put the punctuation mark?
I may need to build this right into my ppp KT88 sub amp when I get around to building it. I have been working on a digital VU gauge, that and a coil temp on the front would look amazing. Should have no DC off set using an opt but how will this change the sound/output of the amp? Running a DC bias on the out of a OPT just sounds like a bad idea
and off topic but when you end a sentence with a smiley where do you put the punctuation mark?
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