voilà, a tone potXplorer wrote:yes, very nice tech site about pots. i'll read it.
yeah, i realise that i was wrong, as the 100k pot and the 500k pot wouldn't be synchronised when turning.
but this resistor in parrallel could perhaps be replaced by a pot instead of using a swith ? and it would be much more simple than my previous wrong idea !
Dunlop - JBF-3 Joe Bonamassa Fuzz Face [schematic]
- Seiche
- Old Solderhand
May be someone you need transistors, I am ready to help.
I live in a post sovet country and I have 1t308b in stock.
they can be 60-100 hfe
I take away the right ratio for you. $5 per couple and $5 + shipping.
email me please: in private, if you need it.
I live in a post sovet country and I have 1t308b in stock.
they can be 60-100 hfe
I take away the right ratio for you. $5 per couple and $5 + shipping.
email me please: in private, if you need it.
Yes most of the 70-80, then smaller part 90-100 that is true,Seiche wrote:I bought those. seller is a really nice and helpful contact and most of them fall in the range of 70-80, some are in the 60ies, some are in the 90-100s.piod wrote:$5 per couple and $5 + shipping.
even the ability to my package such a sample proved.
- Xplorer
- Solder Soldier
voilà, a tone pot
yes,but not like a strat tone pot with a cap. a 125k pot would transform a 500k pot into a 100k pot, if wired in serie.
years and years since i didn't do maths ! lol, thats funny.
- Xplorer
- Solder Soldier
so, a 10M pot with its lugs 1 and 2 , in parrallel, connected with the lugs 1 and 3 of the 500k pot would adjust the value of the 500k pot potential resistor between 0 and 476k. i think it's the solution. but it would be wierd, at zero, i don't know how it's supposed to work.
this site is helpful, when you're tired of writing equations ; )
it's in french, my language, but it's not difficult to understand the purpose. many many many french words are the same or almost the same, once in english, and have a mostly just a different prononciation. i think that there are just a lot more words existing/available in the french language.
http://www.volta-electricite.info/artic ... fr&pg=1890
this site is helpful, when you're tired of writing equations ; )
it's in french, my language, but it's not difficult to understand the purpose. many many many french words are the same or almost the same, once in english, and have a mostly just a different prononciation. i think that there are just a lot more words existing/available in the french language.
http://www.volta-electricite.info/artic ... fr&pg=1890
- sinner
- Old Solderhand
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I did this layout with external bipolar power supply (not sure about the wiring, but I think it should work), as I like my power bank, and hate batteries.
I hope you enjoy it.
Odd Q pinout, as I did it for funky lil russian transistors I have (no leakage, small package, right gains), I don't remember the name of them, I don't have them here with me, I think it was Culture Jam who also is using them
The rest of the text is copy and paste from JH-F1 tread
I hope you enjoy it.
Odd Q pinout, as I did it for funky lil russian transistors I have (no leakage, small package, right gains), I don't remember the name of them, I don't have them here with me, I think it was Culture Jam who also is using them
The rest of the text is copy and paste from JH-F1 tread
I was inspired by EW's perfboard fuzzface layouts he done years ago. I just simply added few components as per schematic, still a lot of vintage charm and vibe. No trimmers, it's easy to set fixed bias, we're not going into mass production, do we?
- Chris Brown
- Breadboard Brother
anyone have access to the collector voltages on a stock unit?
- sinner
- Old Solderhand
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That would be cool to have itChris Brown wrote:anyone have access to the collector voltages on a stock unit?
BTW, later on I'll post another layout with more common Q pinout
- mmolteratx
- Degoop Doctor
Should've asked a week ago. Shipped mine off last Friday.Chris Brown wrote:anyone have access to the collector voltages on a stock unit?
- Ghandi
- Solder Soldier
I just found this article where Jeorge talks about the Hendrix, Bonamassa and Johnson fuzz.
He says that the Hendrix fuzz is biased at 6V on the collector of Q2,
Bonamassa's is biased at 4,5 at C of Q2
and he Johnson is, as we know, biased even lower.
here is the link:
http://www.guitarplayer.com/article/per ... -face/5792
cheers
Ghandi
He says that the Hendrix fuzz is biased at 6V on the collector of Q2,
Bonamassa's is biased at 4,5 at C of Q2
and he Johnson is, as we know, biased even lower.
There’s only nine volts of headroom, so we set the bias on the Jimi Hendrix model at six volts so that when you hit it hard, it doesn’t get quite as buzzy. Joe Bonamassa likes a more compressed response, so his Signature Fuzz Face is biased in the middle at around 4.5 volts. Eric Johnson prefers his to be biased ever lower, but he keeps the Fuzz knob pulled back, and through a Marshall with a Strat, it all works.
here is the link:
http://www.guitarplayer.com/article/per ... -face/5792
cheers
Ghandi
- sinner
- Old Solderhand
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Ghandi wrote:I just found this article where Jeorge talks about the Hendrix, Bonamassa and Johnson fuzz.
He says that the Hendrix fuzz is biased at 6V on the collector of Q2,
Bonamassa's is biased at 4,5 at C of Q2
and he Johnson is, as we know, biased even lower.
There’s only nine volts of headroom, so we set the bias on the Jimi Hendrix model at six volts so that when you hit it hard, it doesn’t get quite as buzzy. Joe Bonamassa likes a more compressed response, so his Signature Fuzz Face is biased in the middle at around 4.5 volts. Eric Johnson prefers his to be biased ever lower, but he keeps the Fuzz knob pulled back, and through a Marshall with a Strat, it all works.
here is the link:
http://www.guitarplayer.com/article/per ... -face/5792
cheers
Ghandi
Nice. Thanks a lot. Mr.Tripps said in EJ's topic that it is biased @ 3v
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Can any 1 confirm this layout works? aswell as the bipolar powersupply ?sinner wrote:I did this layout with external bipolar power supply (not sure about the wiring, but I think it should work), as I like my power bank, and hate batteries.
I hope you enjoy it.
Odd Q pinout, as I did it for funky lil russian transistors I have (no leakage, small package, right gains), I don't remember the name of them, I don't have them here with me, I think it was Culture Jam who also is using them
The rest of the text is copy and paste from JH-F1 tread
I was inspired by EW's perfboard fuzzface layouts he done years ago. I just simply added few components as per schematic, still a lot of vintage charm and vibe. No trimmers, it's easy to set fixed bias, we're not going into mass production, do we?
- Seiche
- Old Solderhand
is this the signature and a variation thereof or just another fuzz face he uses?Ghandi wrote:a few different resistor values and some other germanium trannys!