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[Remork]

that thing is Huge! does it sound Huge as well?
(i like the word Huge.)

in this case i would need to build a separate power supply which i could plug the various modules into.
could i just build a PSU with various outputs and a lot of amps and build the voltage converters into the modules?

sure, i'm just not entirely sure what you mean by voltage convertors?
the PSU is a voltage convertor (mains to needed voltages), so you just plug your modules into what the PSU supplies..

[Circuitbenders]

I think converters means regulators in this context.

In theory you could have one big power supply in a box with loads of outputs for different modules in other boxes, but bear in mind the voltages you would need. As i say, some modules might need +12v, -12v, +5v and ground, so you'd need a 4 core power lead.

At a push you could get +12v and -12v in the PSU itself, and then use a 7805 regulator wired up to the +12v rail in the modules themselves if you needed +5v for something. That would mean you only needed 3 core power leads.

[parricide]

thanks guys. no doubt i will be starting a new thread for some details on this when it actually comes to it i have a better understanding of how i would do it now though.
thanks for the help, and sorry op for hijacking the thread