DIY pedal similar to S*per D*per

[DWBH]

Does it exist?

[The Tone God]

I have never heard of a Seper Doper.

Andrew

[DWBH]

Can I say Super Duper?

[slacker]

Can I say Super Duper?

looks like you just did 

The Super Duper is "just" 2 boosters in series. Try something like 2 AMZ mosfet boosters.

[markm]

Can I say Super Duper?

looks like you just did 

The Super Duper is "just" 2 boosters in series. Try something like 2 AMZ mosfet boosters.

Try this.....it'll get ya closer!
http://aronnelson.com/gallery/album76/Modified_MosFET_Booster_LAYOUT

[spudulike]

Build two SHO's.
Replace the first 100k output resistor with a 50k pot.
Run it into the second via a 3PdT.
Viola mon legume.

[blanik]

Build two SHO's.
Replace the first 100k output resistor with a 50k pot.
Run it into the second via a 3PdT.
Viola mon legume.

actually it's the output resistor of the second SHO that's supposed to be replaced with a 100k pot
i guess two AMZ mosfet boosters cranking into each other would do a very similar job... the added pot at the end is to protect your amp from blowing tubes...

...and calling someone a vegetable is a bit rude... 

[spudulike]

Firstly I stated how I wired mine up, because thats how it sounded best out of the various ways I tried.
Seceondly thats british humour and is from a british sitcom called "only fools and horses" - lighten up 

[Mark Hammer]

Cross-cultural word-play doesn't work terribly well, does it?  Blanik is in Québec where expressions from British sitcoms have about as much familiarity and resonance as expressions from Têtes-a-claques (http://www.tetesaclaques.tv/  -  A Québecois sensation) have in Great Britain.  A bit like doing a Basil Fawlty or Dwight Schrute impression in Nepal and expecting guffaws from the locals.  "Voila mon legume" could mean "Here IS my vegetable" (as in bringing in a radish for Show and Tell in Grade 4 French class), or "Here, my vegetable" as in giving someone a condescending pat on the head.  In either case, Québecois would not refer to someone as a vegetable in that manner, so I figure Blanik just left the wink out by accident.

I'm not going to minimize the sonic quality of the Super-Duper, but essentially we are looking at the properties of two cascaded MosFET gain stages.  Much like any double clipper circuit, like the Big Muff, or Double Muff, what you get from the second stage depends on what you feed it from the first stage.  I'm not suggesting that you would "nail" an SD by simply throwing together any double-booster made of two single transistor gain stages, but you will likely get something interesting that will take you LOTS of playing around with until you run out of sonic changes.  naturally, one of the properties of the SD is that it has the very high input impedance of the SHO.  So, whatever you choose to use for second variable gain stage, you probably want to make the first one, a FET or MosFET stage, such as the AMZ MosFET Booster, or any of the single-FET stages described in a variety of documents on both AMZ and GEOFEX.

[blanik]

Firstly I stated how I wired mine up, because thats how it sounded best out of the various ways I tried.
Seceondly thats british humour and is from a british sitcom called "only fools and horses" - lighten up 

nah, i wasn't being uptight...lol
Voila mon légume litterally means "here you go, moron" sounds really rude in french...
i actually thought you were french and had an attitude (wich sometimes goes together...lol) 

and the wiring of the SD is explained on z-vex's website:

"This channel is a conventional Super Hard-On (TM), which I will henceforth refer to as the SHO, in order to reduce potential offense to young ears and sensitive persons. Its gain control is on the far right, and it's LED is yellow. If you are familiar with the SHO, you'll know that it's a very sparkly sounding high input-impedance preamp with incredible headroom, wide-ranging gain (unity to 60 X), and a maximum volume that will knock out your fillings. Channel one has no Master Volume control, but it's cascaded into Channel 2, which does...

This channel has the very same circuit as Channel 1, but the bleeder resistor on the output has been replaced with a Master Volume control, which allows the user to turn down the output volume even if the gain is set quite high..."

but i guess experimenting with volume placement can turn out something that work better for you...

R.