There is one thing about Moog Modular oscillators that you should weigh before building some and that is that they are only a superior device when used in a full bandwidth system like modules that spec out like 900 series modules you can of course use them with other things with the inherent risks and occasional benefits. There are other oscillators with lower output, lower fidelity, more features, higher stability, and easier tuning and service. Now that I have a choice, I don't use mine as much anymore. You should know I started building to expand my system 15 and 55 at a reasonable price.
This expands on our personal post Dan, I know you are cloning the whole system so it doesn't apply to you in the strictest sense. I would suggest you do a sync mod to you 901s.
best
gino
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> --- In ModularSynthPanels@yahoogroups.com, "dan" <danlind7109@> wrote:
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> > Hello !
> > Have been building clones of the moog 901a and b modules.
> > 0,5W carbon resistors, 2N4058 and 2N 3392 transistors
> > and CA3019 and big pcb´s like the original
> > I can´t compare the sound to the original, but i think its warm and fat.
> > But there is one small issue
> > in higer pitch there is some modulation in the wave, like realy fast vibrato,
> > How do the original moog 901 sound in the higer pitch regions?
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> > You can find a sound example in the files menu
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> > /Dan Lind, Sweden
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> Haha...found the issue.... my NordLead 1 is creating the modulation...it is 10 inches from the osc controller card...it gives 50Hz interference from its powersupply
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> /Dan
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