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