Adam,
You must be reading my mind! :) I was twiddling around with the 101 S&H
today, sampling a saw wave, and was thinking about how nice it would be to
have a clock out signal to drive an EG for amplitude enveloping, although I
had not yet pursued a plan of action. It sounds like you are on the right
track. This modification could certainly be of use to everyone who owns a
101. It would be greatly appreciated if, once you have a solution, you
would make it available to the list.
Cheers,
George
----- Original Message -----
From: Adam Schabtach <adam@...>
To: MOTM listserv <motm@yahoogroups.com>
Sent: Sunday, November 10, 2002 4:24 PM
Subject: [motm] Adding CLK OUT to MOTM-101?
> Today I was watching the LED on my MOTM-101 Noise/S&H module blink merrily
> away. It crossed my mind that it would be handy if that clock signal could
> be used to drive other things. Sure, you can use an LFO to drive the S&H
and
> other things, but if you could drive everything from the 101's clock,
you'd
> free up an LFO for more interesting tasks. So then I noticed that there's
> even room for another jack in the lower row of the 101's panel, whereupon
my
> interest was sufficiently piqued to pull out the schematic.
>
> It looks like tapping the output of the 555 timer would be easy enough. It
> even looks like there is an unused section of a TL072 wired as a
unity-gain
> buffer which could be used to buffer the 555's output, although you'd have
> to cut a PCB trace to free the grounded input, which is kind of scary.
>
> Has anyone tried this? Any reason why it's not a good idea? I realize that
> the 555-based clock probably isn't as stable as the MOTM oscillator core
> found in the 320 LFO, but in many instances it is probably good enough.
>
> --Adam