[sdiy] TB-303 servicing questions

[Nathan Trites]

I can't grab a link at the moment, but Hammond has a chassis available in steel or aluminum that's slightly bigger than a 303 or 606 (practically identical foot print to elektron gear).. Enough room that you could mount the switch board against a panel and then mount new pots and switches on there as well, with the main board against the bottom. This was the route I was going to take for a 606 I got without a case until I found a shell by dumb luck. 

Im actually waiting on parts right now to build a MBHP mb808 seq into one. 

Nathan

Sent from my Buzzbox 4g

On Dec 4, 2013, at 4:10 AM, "cheater00 ." <cheater00 at gmail.com> wrote:

> Returning to our regular programming schedule:
> 
> Robin, I assume you've had an open TT-303 in your hands. Have you any
> insights on whether making a clone TB-303 button plate and making a
> hoe in the TT-303 case could work well?
> 
> On a side note:
> 
> I'm surprised no one has bothered to make a nicer, purpose-buit case
> for those TB-303s with lots of mods, like your Devi Fish, but also the
> b0rg, etc. I for one thing find the front panels of many modded
> synths, with switches and knobs scattered here and there, really
> confusing and pretty much impossible to use.
> 
> The most intuitive place to put extra knobs would be *above* the ones
> already there. However, that's also where the back panel of the 303
> is. So you would have to construct a case where the extra control
> panel hangs over the back panel.
> 
> Judging by the PCBs, one could make a case where the base isn't as
> deep as the top. So the top has more space for the knobs, while the
> base still has the right dimensions so that you can have more knobs
> above the usual TB-303 ones.
> 
> Another option, of course, is to keep things square and use pin
> headers to move the existing connectors to the very back. That brings
> its own set of issues. However, it could also mean you get to have a
> nicer, more organized patch panel, with more modular options. One of
> my favourites would be to have the final voltages for VCA, VCO FM, and
> VCF FM present. I've tried using the normal outputs on my 303 to drive
> the reissued Moog Taurus and it was just unsatisfying - the CV magic
> happening inside the 303 is really a huge part of the sound. Robin has
> told me some time ago the VCO FM could be difficult, but I'm hoping
> measuring current through a small resistor might be good enough. If
> you've ever seen a mod like this, let me know.
> 
> Cheers,
> Damian
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