[sdiy] need PCB layout for a +/-9V DC supply

[Seb Francis]

Hi Danjel,

For something as simply as a 78xx/79xx power supply I would use 
stripboard rather than make a PCB.  There's a stripboard layout for a 
similar PSU on my website.  (I'll email you the link offlist because my 
website is not quite finished enough to be public yet ..)

Seb


Danjel van Tijn wrote:

> Hi there,
>  
>  
> I am just getting into synth design. I have completed a few small 
> projects (latetst was a 303 called the x0xb0x) and now I am making my 
> own version of the Sound Lab Mini-Synth.
>  
> For this project I need a +/- 9V DC supply. I have no experience 
> making PCBs (but I have just bought the chemicals and equipment to do 
> so) and would prefer to use a PCB layout that has been tried and tested.
>  
> One option is to use http://www.cgs.synth.net/modules/cgs14_psu.html  
> PCB for a +/-15 VDC supply and replace the regulators with 7809 and 
> 7909s. I could then hook up a 24V CT transformer to it.
>  
> I assume it is a good idea to build an external power supply... should 
> the transformer and the power supply circuit all be in one small 
> box? Is there a wallwart style transformer I could get that has a 
> center tap? (instead of mounting the transformer in the power supply 
> box). Is an XLR cable a good way to connect +9, 0 and -9 to the synth?
>  
>  
> any help is greatly appreciated! I am just a beginner but I plan to 
> learn as much as I can and increase the complexitiy of my designs.
>  
> cheers,
>     Danjel  [VANCOUVER}
>  
>  
> www.intellijel.com <http://www.intellijel.com>