Tube Screamer Circuit + SHO how to ?

[HOTTUBES]

Does anyone have any good tips on how to make this happen ....

I want to build a Tube Screamer and a SHO boost type circuit in one box , and still be able to
use only the boost seperate from the TS. ( Like this has never been done before !!   ) I'm hoping
to get it all to fit into a 1590BB , or if i must a 1590DD .

This should be childs play for some of you guys on this forum  !  ha ...
I'm sure this has been covered before , but i'm still learning how to
do this stuff ...


Thanks for any help !!

[mremic01]

There's a PDF from General Guitar Gadgets that shows how to do this, but I can't seem to find it on their site.

Basically, you put two footswitches in one enclosure. The signal comes in from the input jack and goes to the first switch. That switch either sends it to the first circuit and then on to the second switch, or bypasses the circuit and sends it to the second switch. The second switch either sends the signal through the second circuit and then to the output jack, or bypasses it and sends it along to the output jack. Both circuits get hooked up to the same power supply and each switch can have an LED. This will let you have either circuit on, both on, or both off. You need to decide which circuit you want in front of the other though. Although I'm sure you could rig something up for switching which is first in the signal chain too.

It's very easy to figure out once you understand how a 3PDT switch works. Just wire the first switch to the second switch as if the second switch's input were the output jack of a regular one-circuit pedal.

Edit: Here it is: http://www.generalguitargadgets.com/pdf/two_in_one_wiring.pdf

[HOTTUBES]

Awesome link , this just what i was looking for .......

The idea of this project i'm sure is not new , but i have never done this before , so this wll
help me out alot ........

Thanks again   !!!!     

[HOTTUBES]

Does anyone have previous experience with putting these two types of circuits into one box ?

I'm looking for a lower Gain O/D , then a Boost circuit like the SHO or LPB to push it a little bit more etc ?

[mremic01]

I like to run Tube Screamers in front of other pedals. The Crunch Box has plenty of gain, but a TS in front of it can boost it and tighten it up just kind of like running one in front of a tube amp distortion channel. I've tried putting one in front of my BSIABII, and didn't seem to do too much. The BSIABII already gets more than enough gain. I think a TS in front of a Rat sounded pretty good too. And a TS running into another TS will get you more distortion, but it will be very thick with mids. I don't like putting the TS after other pedals. I've seen it done, but I don't think it sounds good.

I don't know what a TS in front of a SHO would sound like, but it's worth experimenting with. Do you want to get more boost out of the TS, or get more distortion from the SHO?

[HOTTUBES]

No , i'm looking for more of a Volume boost after the TS Circuit ....
I will be getting some additional gain / drive from my Marshall head as well ...



What are some good O/D circuits to build ?  , So far i have only put together the " Tube Reamer " O/D from
Renegadrian , I started to build it and got half way into it a realized that it was not really what i was wanting
to build , I was told the " Son of Screamer " was a killer O/D , but i built the : tube reamer by mistake    !!!!


Does anyone know the difference beween the two ?? , they look pretty close ...

[mremic01]

In a normal TS circuit, there is an input and output buffer that your signal goes through even when the pedal is switched off (unless you have true bypass). The signal goes through those buffers when it's on too, but the reason those buffers are there is to buffer your signal when it isn't getting sent through the clipping and tone sections of the circuit. The Son of Screamer and Tube Reamer both strip off those sections of the circuit, since you don't really need them to have a functioning Tube Screamer. The buffers do influence the sound, but it's subtle. I built a Son of Screamer and it sounded about halfway between my Maxon OD808 and my Bad Monkey. If the SoS and TR aren't what you're looking for, a regular TS808 or TS9 circuit won't be either.

You could try looking for Tube Screamer mods that get you more output to push your amp harder. I don't know anything about the SHO, but you could also try a clean boost. I'm not a fan of the EHX LPB, it breaks up too early. MXR's Micro Amp might be worth a try. Jack Orman's clean boost is supposed to be very good.

[HOTTUBES]

Thanks for the good info .....


I like a Modified Boss SD1 , and that is close to the TS9 , so i should be ok   !

[HOTTUBES]

Where can i find a Jack Orman Clean Boost Layout ?

[mremic01]

http://www.muzique.com/schem/mosfet.htm
http://www.aronnelson.com/gallery/main.php/v/NaBos-Layouts/amz_mosfet_boost_001.gif.html
http://www.aronnelson.com/gallery/main.php/v/diyuser/Sundgist/AMZ+Mosfet+Boost+Stripboard.gif.html
http://www.aronnelson.com/gallery/main.php/v/French+connection/Vero+Layout/AMZMosfetBoost.jpg.html

[petemoore]

  Say what I played with:
   Found out that if I want 'this' booster for that, say boosting the amp a little, and for this..boosting up a post distortion or predistortion position...
    The knobs gotta change and maybe there's something to do upgrade version of one or the other duties.
  Sho is real bright/high impedance input. If that sounds good good.
   Sometimes a little too much extra something gets 'grown' when dual-grow stages follow one another...for me that's usually loss of bass definition [once lost as flab of amp or whatever, doesn't come back] or excess highs [which is generally easier to amp which = fizz which can be quelched later].
  Voicing is a complex amalgum of voicing options, early, late...where to put adjustable tone or treble control..which one ?
   Suggest: Tube Reamer which is ~TS, -buffers, built solid and loose enough that the mod-points can be accessed or easily modded [how I did mine here, medium sized board to start with...why not make use I sezz.
  Not sayin' I even tried a Sho [high impedance mosfet booster though], sometimes...just depends on what you want, I guess expect hard/bright output w/input of buffered TS.

[HOTTUBES]

So , in short are you saying it may not sound good if run together this pair ? TS + SHO ....

[petemoore]

So , in short are you saying it may not sound good if run together this pair ? TS + SHO ....

"It" is vague, Good could be bad, effects circuits don't 'sound'.
  'It'' will involve the transferring electronic analogs of sounds.
   Audio circuits state their input and output impedances in various forms [on back of box, in manual, or as shown in circuit schematic].
  Some of the reasons why:
   So some idea of what the impedance/voicing relationship will encompass.
  So one can more confidently run long runs of cable, or have input loading do a trick of some kind.
   The TS output buffer boasts ability to run long cable, retains output brightness.
  The SHO boasts high input impedance, so as not to load the source.
   It's worth the testout with and without buffer to see if in the case of impedance relationships of 'distortion engine inside TS' [ie the Tube Reamer or SOS or...] and SHO are a 'good' match, if having never done a similar experiment.
  Buffer out = low impedance...lots current, HF's'll remain intact with 'some loading', SHO = VHImpedance input...should be a very good experiment for testing out impedance mismatch/match/overkill as related to voicing.
     
 
 

[HOTTUBES]

I still think i will go ahead with it , i sure like what i heard out of the SHO imo ....

So my thought is that if you get the Gain boost from the TS circuit , you could keep the
SHO on the Cleaner side ( Less than half on the dial ) for a pure volume Kick with no
extra amount of gain from the SHO .

It seems i really like the mix of 1N34a + 1N4001 as clipping pair in the TS , just enough
gain , but yet warm sounding as well , and i think the SHO would enhance that as well
if keep on the lower side , cause i found that the SHO will begin to clip and color the tone
past half etc .( or add Gain etc )

If i'm careful i should be able to get this all into a 1590BB     

[HOTTUBES]

Sorry .....I forgot to say Thank you for the links & info !!!