[sdiy] basic CV source question

[Thom Ash]

i've used a 9v battery and a switch (based on a broken kick drum pedal)
as a gate trig source, which worked fine until it fell to pieces.

thom

-----Original Message-----
From: owner-synth-diy at dropmix.xs4all.nl
[mailto:owner-synth-diy at dropmix.xs4all.nl] On Behalf Of Paul Perry
Sent: 29 November 2004 23:03
To: synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] basic CV source question



----- Original Message -----
From: "john mahoney" > Someone asked about a CV pedal, like a volume
pedal that sends a variable
> control voltage. I basically suggested that a DC wall wart and a pot 
> could be used as a CV source. Was I correct to say that?
>
Yes, but the supply needs to be well regulated, or you get (very
obvious) hum on the control voltage (whihc CAN be a very nice effect,
but not always). I recommend a 9v battery.

Don't worry about a current limiting resistor.

paul perry
(Frostwave analog fx manufacturer) Melbourne Australia