Hello
The switch in the M121 can be rewired to
switch the filter from the M121 HP Mod and back
to original wiring, it is 2Pole 3Way so this
is possible.
Bandpass on the M121 is more tricky . . .
Separate outs on VCO is easy, but you will need
some panel sockets spare.
Also it is quite easy to add a sine wave
shaper onto the VCO
There is a M110 sync in mod also, in the photo's
section.
-ryk
--- In RolandSystem100m@yahoogroups.com, "peterdwendt"
...> wrote:
>
> Hello,
>
> I just joined the forum, and immediately found the 121 HP VCF mod.
Nice.
>
> There are two mods I would really like for my 100m:
>
> 1) switchable modes for the filters (not just LP or HP). Someone on
> Matrixsynth mentioned that this was possible, in reply to the posting
> about the SEM-filter-in-121-box mod.
>
> 2) simultaneous waveform outputs on the 112 VCOs. Having only one
> waveform at a time per VCO is annoying.
>
> Has anyone done these mods?
>
> Thanks,
>
> Peter
>
Message
Re: [RolandSystem100m] Re: filter mods; multiple outputs on VCOs
2007-10-04 by Peter Wendt
Thanks. I suspected something like that, but I want to be extremely cautious before modding vintage electronics and drilling holes in faceplates.
Your suggestion for the M121 is sufficient for me, since i would just combine LP and HP to get BP and notch.
Peter
On Oct 3, 2007, at 5:01 PM, ryktnk wrote: