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In Reply to: RE: Rectifier posted by AbeCollins on January 29, 2023 at 20:03:05
Yeah, but it wasn't a rectifier he described.
People not reading. People not understanding. Or both.
But, it was most likely just a troll anyways.
Dave.
Follow Ups:
Yes, two silicon diodes back to back are essentially a piece of wire with a 0.7 volt drop. Large AC solid state relays are made with two SCR's back to back as Triacs aren't made much over 10 amps.
But this is getting ridiculous. We are all worried about how pure a fuse wire is yet we propose to put a known and measurable voltage drop in the path?
Also keep in mind a diode has a current limit. Putting a 1N4007 in series with say a 5 amp fuse is going to be a problem!
Yes, current limit IS a real and big issue. Maybe first test on a low-current device. DAC? Phono preamp?
But won't this conduct thru only one leg at a time....and if a fuse is in series with that leg, make the directional nature of the fuse more apparent?
And yes, the voltage drop IS a problem and may be visible if you look at the output on a scope by some 'notching'?
Too much is never enough
The result would be something similar to crossover distortion in a Class B amplifier.
One diode turning on and the other turning off is not something that happens without a finite delay.
Since your premise is incorrect, there's no need to fabricate a highly flawed test to 'prove' it. Fuses do not have a "directional nature." Period.
Dave.
I don't believe in fuse direction being a big deal....or any deal....either.
But if testible by those who believe? they should do so if possible in as blind a fashion as possible so audible differences will be the indication....
And yes......I see what you mean about crossover distortion / 'finite' delay.......
In my panels? If I was concerned, I could eliminate half a dozen connections and the fuse in the CROSSOVER....on each panel. I've heard some persons use those ceramic, filled fuses instead of glass.....
Too much is never enough
I actually use 25amp SSRs on my power amp sequencer. Can't have 6 large power transformers coming on at once. Yes there's a voltage drop and the SSRs do need some minimal heat sinking.But I am hardly worried about a 0.7 volt drop at a nominal 115 volts. And these amps run about +/-55 volts on the DC rails so it's a 0.7v drop on the DC rails as well.
Edits: 02/03/23
You are being 'suckered' by placebo effect.
I am, am I?
Good to know.
Thank you.
Dave.
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