--- In Doepfer_a100@yahoogroups.com , <hardware@...> wrote:

>
> > -----Ursprüngliche Nachricht-----
> > Von: Doepfer_a100@yahoogroups.com
> > [mailto: Doepfer_a100@yahoogroups.com ]Im Auftrag von shleedance
> > Gesendet: Donnerstag, 19. Juli 2007 03:44
> > An: Doepfer_a100@yahoogroups.com
> > Betreff: 1 Glitchy a148
> >
> >
> > When I was noodling on my system, the bottom S&H on the A148 went
> > glitchy (short spurts of noise at the start of every trigger) out of
> > the blue. Thinking it was getting modulated by some other module, I
> > disconnected everything and tried it again. Same glitch. Plugged the
> > system out, again the same thing happened. I then tried the top S&H
> > thinking it was glitchy too, but it was working perfectly.
> >
> > Even though I fixed this problem by disconnecting the module and
> > checking the jumper settings, I'm afraid the same problem will arise
> > again like the last time. I'd hate to continously connect/disconnect
> > the module to get it working because it's too much hassle.
> >
> > Has anyone else experienced something like this
>
> The new version of the S&H module A-148 has two jumpers available

that are

> used to choose between S&H (sample and hold) or T&H (track&hold) for

each

> sub-unit. For the upper sub-unit the left position of the jumper JP2

stands

> for S&H, the right for T&H. For the lower sub-unit the lower

position of the

> jumper JP3 stands for S&H, the upper for T&H.
>
> In T&H mode the output signal follows the input signal while the trigger
> input is "high". As soon as the trigger input turns to "low" the last
> voltage is stored. The factory setting is S&H for the upper device

and T&H

> for the lower device. In addition the complete A-100 voltage
> range -12...+12V can be processed by the new version of the A-148

(no longer

> limited to -8...+8V as for the previous version).
>
> Best wishes
> Dieter Doepfer
>
>
> The difference between S&H and T&H is desc+#
>

Ah I see, so the bottom S&H wasn't glitchy at all, but was doing T&H
instead Thanks for clearing that up. :)