Help me Mod my DS-1 to a Ts808 tube screamer type

[rosssurf]

I know these are very different circuits, but I was wondering if there are any mods or info around that might help me mod my ds-1 to a tubscreamer. I know some of the general things that need to be switched are: symetrical clipping, roll the lows off below about 720 and reverse the big mid scoop that is inherent to the DS-1. I did quite a few searches, any help is appreciated.
Do any of the "Big guys" do a DS_1 to TS type mod?

[mth5044]

I doubt anyone would do mods like that, as an SD-1 can be made into a TS808 much more easily and practically. You could even change the symmetric of the clipping and you are more then halfway there.

[T1bbles]

I've heard of a countless number of TS808 mods, and the DS-1 is probably the most modded effect in history. But I've never heard of them being modded into one-another.

Just glancing at the two effect PCBs they don't look even remotely related; the TS808 looks entirely IC based for boosting the signal for diode clipping, whereas the DS-1 has an IC as well as a monumental EIGHT transistors! Along with twice the number of diodes as the TS808. I would think that modding a DS-1 to a TS808 would mean replacing so many parts you might as well build your own!

Doesn't look too big a job: http://fuzzcentral.ssguitar.com/pcbs/TS808layout.gif

[Ibanezfoo]

I've converted a SD-1 into a TS808 but never a DS-1.  Wampler's book tells how to do this.  Otherwise, as was already mentioned, the TS808 is a fairly easy build from scratch.

[Mark Hammer]

It's a bit like asking for help modding a Volkswagon Jetta into a Dodge minivan.  Yes, they both have engines, 4 wheels, and use an internal combustion engine, but.....

[rosssurf]

Thanks everyone for the help!  Good point mark!

[oldrocker]

Yes the SD-1 to TS808 has been done.  I have built the TS, SD and the DS separately.   I like all three for different reasons and uses.  I actually use the DS-1 the most.  They're not modded much at all.  It always amazed me how no one cares for their DS-1's.  I like its raunchy distortion.  It's good for many music styles.  The TS sounds great going in to my Prof Tweed but by itself I don't use it much.  In the SD-1 I used a TLO72 instead of a 4558 which made it less fuzzy.  The DS-1 I used the tonepad schem using a TLO72 also.  So maybe that has something to do with why I like them.  Anyways I'm rambling but I say build them all.  They all have their place.

[anchovie]

the DS-1 has an IC as well as a monumental EIGHT transistors!

I think you might be including the transistors that make up the flip-flop for the switching and the switching FETs themselves! A stock Tubescreamer also has these.

That aside, the topology of the two effect circuits is very different.

[wampcat1]

it CAN be done, but honestly you are going to do so much work to get it there that you might as well just build a tubescreamer. the circuits are very different all around - gain stages, tone control, clipping, etc. You'd have a MUCH easier time using a sd-1 to get it to tubescreamer specs.
bw

[Paul Marossy]

Why not just buy a TS808 PCB from GGG and build your own? That would be a heck of a lot easier.