[sdiy] DIY digital VCOs?

[Magnus Danielson]

From: "Paul Maddox" <P.Maddox at signal.qinetiq.com>
Subject: Re: [sdiy] DIY digital VCOs?
Date: Mon, 19 Jan 2004 09:54:09 -0000
Message-ID: <02bf01c3de72$2f4e6250$a45e23c0 at dra.hmg.gb>

> Magnus,
> 
> > Anyway, as you see this is really trivial in both implementation (CPU, DSP,
> > FPGA, whatever) and in theory (above two formulas). Now, with this little
> > thinge you can do alot and PIC, AVR or BasicStamp will do just fine as long
> > as you can ensure that the "samples" is times with equally distance.
> 
> yeah, or if you're 'hardcore' you can do it with some adders and Latchs :-)
> just like the PPG.

EXACTLY! ;O)

If you are into seriously retro-computing you can do it with transistors,
tubes or even relays. The relay-version will however not come up to audio-
frequency in the waveform, but certainly as a consequence of the operation.

Cheers,
Magnus