Switchable Hi-Z input impedance, how ? - Page 43 - diyAudio
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Old 18th December 2012, 07:45 PM   #421
tinitus is offline tinitus  Europe
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finally someone noticed it
I didn't know when I found it, and thougt it was just a weird worthless component
until I searched, and found its very rare, and 'wanted' for classic distortion sound

could be fun to try it, but would be a shame to destroy it
and I don't know much about it at all

why would you want it ?
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Old 18th December 2012, 08:48 PM   #422
shanx is offline shanx  Canada
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Default Well

No Reason really ..just looked interesting..if you were throwing it away
Yes can make a nice fuzzy sound.
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Old 18th December 2012, 10:00 PM   #423
tinitus is offline tinitus  Europe
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I searched again where i found it, but ofcourse only this one

there is also a SFT 320
also old transistor
do you anything about that one ?
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Old 19th December 2012, 01:33 PM   #424
shanx is offline shanx  Canada
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Another Ge, PNP transistor..have not seen much on it. Pretty rare I imagine.
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Old 19th December 2012, 01:35 PM   #425
shanx is offline shanx  Canada
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For OC44 you can build up a nice little vintage fuzz
http://fuzzcentral.ssguitar.com/rang...rschematic.gif
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Old 19th December 2012, 01:44 PM   #426
tinitus is offline tinitus  Europe
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looks similar to what I have seen mentioned as Rangemaster ?

noticed the lowish input impedance....if you can call 68K lowish ?
I suppose it will need a high-z buffer ?
any idea about output impedance ?
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Old 19th December 2012, 01:45 PM   #427
shanx is offline shanx  Canada
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or Fuzzface, sorry previous link is more of boost circuit.
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Old 19th December 2012, 01:51 PM   #428
tinitus is offline tinitus  Europe
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Fuzzface .... that was a great keyword, thanks

btw, I have noticed that the jfet 2sk170 gives a nice soft gnarly sound too, when overdriven or 'starved'(not sure what)
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Old 19th December 2012, 08:08 PM   #429
shanx is offline shanx  Canada
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I have a bunch of J201 and 2N5457 , trying out on my guitar preamp. 2SK170 look good for that too. Biased a bit hot or cold will give slight differences pushing into saturation or cutoff.
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Old 28th December 2012, 08:47 PM   #430
tinitus is offline tinitus  Europe
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hey, I found a few older Motorola 2N2369
supposedly also a good one for making fuzz pedal
I will give them a try
is there a way to make it 'less fuzzy' ?
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