Nice set of enhancements. I agree with them all. I was working on a 3U panel myself with the small potentiometer spacing but like yours better. I adapted a version of it in FrontPanelExpress at
http://modularsynthesis.com/jhaible/varislope/varislope.htmI've used this smaller control spacing on my YUSynth fixed filter bank with a switch in between. It's tight but very usable. There is a photo at the bottom of this page showing the spacing.
http://modularsynthesis.com/yusynth/ffb.htmNice work. - Dave
--- In ModularSynthPanels@yahoogroups.com, Scott Juskiw <scott@...> wrote:
>
> I plan to build the JH Varislope Filter in July and have been putting
> together a few modifications as well as trying to figure out a panel.
> 1. Add a summing amp to support 3 inputs with 100K log pots.
> 2. Add an inverter to the MOD1 input so that the FM1 pot is a
> reversing attenuator.
> 3. Skip the MOD3 input (3 external mod inputs is more than I need).
> 4. Add a driver to the LFO output that will support a bicolour LED
> (like MOTM-320).
> 5. Skip the bypass switch, I've never needed one on a filter.
> 6. Skip the output pot, I've never needed one on a filter.
> 7. Change the output driver so that the Mix/Filter switch is not
> required to completely silence the Dry signal from the output.
>
> These modifications require 4 op-amps. It'll fit nicely onto a MUUB-4
> board, spookily enough.
>