[sdiy] ASM-1 VCO section update

[Magnus Danielson]

From: "Tony Allgood" <oakley at techrepairs.freeserve.co.uk>
Subject: Re: [sdiy] ASM-1 VCO section update
Date: Mon, 21 May 2001 14:07:11 +0100

> Magnus>Hoy! Tony! Do you recall the discussion we had on sync over at
> Paul's?
> 
> Yes, I remember it. I use a similar method to the ASM VCO in my own VCO
> design. Although I use a diode to clamp the negative going spikes to
> prevent any change in threshold in the comparator.

Ah... now that I look (lazy me) I see the clamp sitting right there...

> But I still find that triggering from another VCO's Sawtooth output
> gives a much better sound at lower frequencies. Using a square does
> sometimes result in 'slipped' sync, a bit 'soft' if you like. At higher
> frequencies the two are similar.

Hmm... intersting.

Now, you where discussing the use of diffrent transistors, but using
sawtooth does all the trick?

Cheers,
Magnus