[sdiy] RE: What is Ref?

[Needham, Alan]

Dan,
As I read this schematic, the Ref. voltage is supplied by a little zener
diode regulator, D1, R17 and C3 (half way down diagram, on right hand
side), providing a 6.2v reference voltage.
The "Ref" label is used simply to avoid having a wire crossing
everything else, just join the "Ref" points to each other, as you would
with "+15v" or ground points.

-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Dan Snazelle
Sent: 06 June 2008 17:20
To: takeda at aleph.co.jp; synth-diy at dropmix.xs4all.nl
Subject: [sdiy] RE: What is Ref?



on the toy synth vco, what voltage should go into REF??? 3volts? 1.5
volts? 

looks cool!! i want to build these but have always been afraid of the
REF. 

if you can just tell me what amount of voltage to put in there, i can
buy a voltage reference right/

thanks
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