MOTM

Is it possible to mod the LFO to have a controllable start point as on the
Polyfusion LFO (2003)???

thanks!
Shemp

Not easily. You need a front-end comparator. But it's less than $1 of parts.
The problem is left
as an excercise for the reader.

Paul S.


----- Original Message -----

From: "Tentochi" <tentochi@...>
To: "MOTM Mailing List" <motm@yahoogroups.com>
Sent: Saturday, February 17, 2001 6:30 PM
Subject: [motm] LFO mod?


> Is it possible to mod the LFO to have a controllable start point as on the
> Polyfusion LFO (2003)???
>
> thanks!
> Shemp
>
>
>
>
>

Some readers (such as myself) never get any excercise.  And we are so weak
that it would take years to learn how to even begin excercising.

Can you point to the head of the trail?

Will reviewing the Polyfusion LFO schematics be useful?

<BABBLE ON>

Phase comparator?  Simple XOR gate?

Clock synchronization comparator?

Magnitude comparator?

Op-amp without frequency comparison?

Voltage comparator?

Inverting or non-inverting?

LM324 (or 393), pull up resistor, timer cap?

Actually, I found a ton of them...

<BABBLE OFF>

Help!
Shemp

> Not easily. You need a front-end comparator. But it's less than
> $1 of parts.
> The problem is left as an excercise for the reader.
> Paul S.

> > Is it possible to mod the LFO to have a controllable start
> > point as on the Polyfusion LFO (2003)???
> > thanks!
> > Shemp

use a LM311. Study the MOTM-120 and MOTM-700 schematics.

The answer is out there.....

Paul S.
not very helpful today