BJ's 4046, PM, additive waves!

[Magnus Danielson]

From: "Bjorn Julin" <bnillson at hotmail.com>
Subject: BJ's 4046, PM, additive waves!
Date: Sat, 23 Sep 2000 21:52:25 GMT

> Hi.

Hi there Björn,

> Over a couple of months i have been trying to design a
> discrete PM oscillator and still do so until it gets ready
> for publication (if, it works well that will say) you
> can go to:
> 
> http://home.swipnet.se/~w-133242/4046.htm

Ah, that looks interesting.

> This 4046 design is used as a scratch pad for the
> discrete PM oscillator, it was also a try out
> to se what one actually could do with the 4046 PLL.
> 
> Some one on the list once said:
> "One wishes that more could be done with the 4046".
> 
> Well, i think that the 4046 is a wery nice device if
> one takes care of what it delivers.If it was not for
> the linearity error it would have been a damn good
> VCO!

Certainly, it has a nice twist to the reset problem, it just skips the whole
reset thing ;)

> The design delivers so many different wave shapes
> that i got fedup by trying to draw them of the
> scope screen (have no digital camera)but many
> of the more interesting ones is in the graph.

Well, having 43 listed I can understand

> A note to the sound of shape no 12, it does not look
> much to the eye but the sound is really interesting.
> Imagine this, a piece of styrofoam rooling down a plastic tube!!
> A sort of flanging sound!

hum... and I whole allways drop a piece of styrofoam through a plastic tube ;)

> There is a wave that i have missed to draw,but sound
> wise it sounds like synced oscillators.
> 
> The shape no 3 and 2 is WERY fat, fat as in 30 kilo "GREASE",
> not phat, "FAT". Use those wave shapes and you have the
> bassiest bass sound on the planet!Mini Moog go home!

Hehehe ;)

> There might be faults in the text and or design and
> im listening to anyone who reports such issues.

I'll be checking it out more carefull.

You seem to have some nice thing happening there dude!

Cheers,
Magnus