Common supply

[Fraser, Colin J]

> -----Original Message-----
> From: Irish [mailto:irish at eskimo.com]
> Sent: 18 January 1999 01:40
> To: DIY
> Subject: Common supply
> 
> 
> Like everyone else I'm sure, I am amassing this collection of 
> warts on my
> wall/floor/etc. Any reason I can't get/make a 9V 3A supply 
> and just wire
> everything to it? (9V because almost everything I have is 9V)
> Is this a Bad Idea? 

I tried building a 9v supply to power both my 303 and 606, and ran into
problems.
For some reason, I couldn't connect both units shield connections on their
audio outputs together or I got a loud pumping noise from both units - they
were OK if either their outputs or power supplies were isolated.
In the end, I built a PSU with one transformer, but separate recitifers,
regultators and power outputs for each unit.


Colin f