led hard clipping, adjusting the decay

Started by pinkjimiphoton, May 03, 2019, 11:42:13 PM

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Fancy Lime

Quotethis should be right. not related to the op, but... this should be good. thanks gents.
Agreed, this should work as intended. The idea of using one Si (D6) and one Ge (D9) diode in parallel is very interesting. Fair warning: some people might tell you that case you can just as well leave the Si out because only the diode with the lower forward drop, which is the Ge, will open. But I don't think that is true because the relatively high internal resistance of the Ge diode will act as a balancing resistor, so the Si diode will open later than the Ge and later than the anti-parralel Si, but it will still open on the highest signal peaks. Depends highly on the exact type (and individual device) of Ge diode. But that is part of the magic of germanium, isn't it. Very interesting, have never seen it done this way.

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Andy
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pinkjimiphoton

Quote from: Fancy Lime on May 06, 2019, 12:40:52 AM
Quotethis should be right. not related to the op, but... this should be good. thanks gents.
Agreed, this should work as intended. The idea of using one Si (D6) and one Ge (D9) diode in parallel is very interesting. Fair warning: some people might tell you that case you can just as well leave the Si out because only the diode with the lower forward drop, which is the Ge, will open. But I don't think that is true because the relatively high internal resistance of the Ge diode will act as a balancing resistor, so the Si diode will open later than the Ge and later than the anti-parralel Si, but it will still open on the highest signal peaks. Depends highly on the exact type (and individual device) of Ge diode. But that is part of the magic of germanium, isn't it. Very interesting, have never seen it done this way.

Cheers,
Andy

it works too. ;)

its a mod i discovered about 10 years ago for big muffs, nukes most of the hiss n noise at the expense of a tiny bit of gain.
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dschwartz

IME, very asymmetrical clipping produces fizzier decay, caused by intermodulation distortion and having only one clipped side at some point of decay, which produces an irregular harsh fizz. The good part is at high gains you get more expressive pinch harmonics.
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pinkjimiphoton

try the ge diode trick some time, you might like it.  very liquid and most of the background noise get reduced noticeably.
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pinkjimiphoton

dudes
hold off on building this a few if possible, i just got the schematics back from my guy and i @#$%ed up some of the values somehow. my apologies, will update asap

stiffler's mom i'm talking about. schem is right, but some of the values i got way off somehow.

sleep deprivation ;)
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pinkjimiphoton

output cap of stiffy should be 330n not 3.3n sorry for any inconvenience. shit, up to 330n would work. ;)
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"When the power of love overcomes the love of power the world will know peace."
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"try whacking the bejesus outta it and see if it works again"....
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