[sdiy] +/- 5V voltage source schematic?

[Daryl Groetsch]

wonderfully simple, i thought it'd be something like that. thanks so
much guys, going to build a couple tonight!!

best,
Daryl



On Fri, Sep 12, 2008 at 2:25 PM, Stewart Pye <stewpye at optusnet.com.au> wrote:
> Hi Daryl,
>
> It's pretty simple. Assuming you have a +/-15V supply, you could use a 10k
> linear pot. The wiper is your output. A 10k resistor goes to each end of the
> pot. The other end of the resistor attached to the clockwise lug goes to +15
> V, and the resistor attached the the counter clockwise lug goes to -15V.
> This will give a -5 to +5V swing.
>
> If you want to you could buffer the output with an op amp buffer. Then you
> could use a 100k pot and 100k resistors.
>
> Cheers,
> Stew.
>
>
> Daryl Groetsch wrote:
>>
>> greetings,
>>
>> i have been wanting to build a +/- 5V voltage source module that can
>> be used to offset a VCA, overdrive an input on a filter, that sort of
>> thing. the closest thing i've found is the Oakley Control PCB seen
>> here http://www.oakleysound.com/control.htm but it seems like i should
>> be able to build one from scratch, should be a pretty simple
>> circuit..? i'm a very confident builder but not so great with design.
>> don't know why this type of module isn't more common (or maybe it is)
>> because i'm always wanting it!
>>
>> i don't care about having a clean, stable voltage because i like a
>> little drift or distortion. if anyone has a link to a schematic or can
>> describe a simple circuit, it'd be awesome. don't want to blow
>> anything up by tinkering myself too much.
>>
>> thanks in advance!
>> daryl
>>
>>
>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>



-- 
Pulse Emitter
http://synthnoise.com