Wiardgroup

My six module system is nearly the same configuration as yours, with the
exception that I have a Waveform City instead of a Classic VCO. As I
mentioned in my earlier post to Tommy, Grant measured the draw on my
system to be 475 mA with all LED's illuminated. I would imagine that
your system will be in that general vicinity, which would mean that one
PS500 will be pretty close to capacity, with perhaps a bit of headroom.
Grant also measured the draw on my New Controller to be 125 mA, which
is why he recommended a second power supply for maximum stability.

muffwiggler wrote:
> Speaking of current draw, a couple of questions...
>
> I've got a 6 module system on order with Grant which I'm expecting in
> a few months. I have some unused Blacet PS500's that I'm planning to
> use, but I'm wondering if anyone has measured or knows the current
> draw of the various 300 series modules. I have never come across
> this information anywhere, and I'd like to know if I can power my 6
> module rack (VCO, Wogglebug, Sequantizer, Borg I, Envelator,
> Mixolator) from one PS500.
>
> I believe that Grant once said the 1200 Series JAGs pulled about
> 100ma each, and the joystick no more than 20. So that would mean the
> New Controller would be pulling something like 240ma - almost half
> what a PS500 can manage. I assume that's a lot more than any single
> 300 Series module.
>
> John Blacet told me the PS500 is very conservatively rated and one
> can safely draw up to 550ma from it.
>
> A second question - it seems the PS500 doesn't have the ground prong
> of its power inlet wired up. I have quite a few of these supplies
> and they are all configured this way by Blacet. I know the 300
> series has been designed to automatically provide star grounding, but
> does it not compromise this when the path to ground through the power
> inlet is not available?
>
> thanks everyone