Wampler - Plextortion [traced]
- call1800ksmyazz
- Breadboard Brother
Ah cool Brian. I was wondering about the Plextortion. Sounded good. Same with the other Plexi pedal you sell.
- indyguitarist
- Resistor Ronker
- call1800ksmyazz
- Breadboard Brother
Oh awesome again . Seems like you have been doing great!
- plexilover
- Breadboard Brother
hey guys,
anyone heard about? schematic?
greetings
andy
anyone heard about? schematic?
greetings
andy
- analogguru
- Old Solderhand
Information
The search function is your friend - rumours say:
analogguruplextortion: marshall guv type circuit (1st version) with treble boost circuit on the end.
There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.
- plexilover
- Breadboard Brother
thanks but i didnt find anything on search function
- PurplePeopleEater
- Resistor Ronker
The two pertinent comments I found searching for "Plextortion" were the aforementioned "Guv w/ treble boost" , and another where Brian says it's a "tweaked 1st version Guv".plexilover wrote:thanks but i didnt find anything on search function
I hope this helps, at least a little.
- indyguitarist
- Resistor Ronker
I'm flattered that my pedal was brought up.
I'll start from the beginning - I was always a huge fan of the old blues pearl 'perplexed' pedal, which is a modified guv'nor.
Let's start with this schem: http://www.freeinfosociety.com/electron ... php?id=476
The first version is a modded guv'nor, no additional parts.
c5: .22
r16: 1m, add 100pf in parallel.
remove c4
r6: 470k
c8: 100pf
c9: 1uf
r7: 10k
r1: 1k
c1: .22uf
diodes: 1n914+led, 1n914 on the other side.
IC: tl072 and 5532 on later versions.
500ka volume - iirc - I have since lost my original schem in a hard drive crash.
That didn't have enough highs, so I added a high boosting stage, similar to the tubescreamer tone control type, except it didn't tie back into the signal before the opamp (no additional low pass), this was called the 'presence'.
The next version had the same thing, except I added a basic jfet gain stage after that to boost the volume.
Next version, I dropped the presence control and added these changes:
r7: 1k
diodes: led's
c5: .1uf
c2: 47pf
ic: lm833
The last version is about the same - I *think* r8 is just a jumper IIRC.
component types: metal film
ic: 4580
der ya go! It's a good sounding little circuit, and the first and last "clonish" type of circuit I did.
bw
I'll start from the beginning - I was always a huge fan of the old blues pearl 'perplexed' pedal, which is a modified guv'nor.
Let's start with this schem: http://www.freeinfosociety.com/electron ... php?id=476
The first version is a modded guv'nor, no additional parts.
c5: .22
r16: 1m, add 100pf in parallel.
remove c4
r6: 470k
c8: 100pf
c9: 1uf
r7: 10k
r1: 1k
c1: .22uf
diodes: 1n914+led, 1n914 on the other side.
IC: tl072 and 5532 on later versions.
500ka volume - iirc - I have since lost my original schem in a hard drive crash.
That didn't have enough highs, so I added a high boosting stage, similar to the tubescreamer tone control type, except it didn't tie back into the signal before the opamp (no additional low pass), this was called the 'presence'.
The next version had the same thing, except I added a basic jfet gain stage after that to boost the volume.
Next version, I dropped the presence control and added these changes:
r7: 1k
diodes: led's
c5: .1uf
c2: 47pf
ic: lm833
The last version is about the same - I *think* r8 is just a jumper IIRC.
component types: metal film
ic: 4580
der ya go! It's a good sounding little circuit, and the first and last "clonish" type of circuit I did.
bw
- indyguitarist
- Resistor Ronker
I forgot - last two versions are 100ka volume pots, at the end of the jfet. resistors going to the jfet were 100k into it, 470k to ground IIRC - you may have to fiddle with the 470k for optimum tone though - I'm going from memory here.
bw
bw
- indyguitarist
- Resistor Ronker
I take it back - second 'cloneish' of sorts - analogecho, which is a modified delay that francisco of tonepad has on his site (i forget the name of it), but I pay francisco for it.
bw
bw
- MoreCowbell
- Transistor Tuner
Information
Just sayin' "hello" Brian ! I hope all is well....and thanks for the info !
AC
AC
- ieatyouforbreakfast
- Breadboard Brother
This is definitely why Brian is one of my favorites in the industry right now. Awesome.
- ShortScaleMike
- Resistor Ronker
Information
Thanks Brian, I'm a big fan of this pedal, I'll definitely be breadboarding the design shortly.
- plexilover
- Breadboard Brother
thanks alot
- ShortScaleMike
- Resistor Ronker
Information
I prototyped this this evening and it sounds great. Really nice tweaks on the original circuit.
- bajaman
- Old Solderhand
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Hi Brian
thanks for sharing the info - hope all is well with you.
Cheers
bajaman
thanks for sharing the info - hope all is well with you.
Cheers
bajaman
be kind to all animals - especially human beings
- indyguitarist
- Resistor Ronker
glad to help - I'm getting ready to replace the plextortion pedals with a new distortion pedal which (IMO) sounds better and is more versatile - similar gain stages but the eq is a baxandall.
Brian
Brian
- nooneknows
- Resistor Ronker
hi,
is the Plexidrive based on a similiar circuit (maybe with a simplified tone stack)?
thank you
is the Plexidrive based on a similiar circuit (maybe with a simplified tone stack)?
thank you