I installed R68 when I assembled the MOTM-410 and I've had no problem using the -410 with either of my polysynths (Prophet 600, CZ-101), which I doubt are anywhere near 10V outputs, even with the volume cranked. So for a third opinion, I'd recommend installing the resistor when you build the kit and not worry about it. I haven't tried running a low-level (guitar, microphone, transducer pickup) signal through the -410 yet (so if you're planning on *that*, you might want to ignore what I just said), but my Morley wah (old chrome "Power Wah Boost") has a built-in preamp (the "Boost") that ought to do the trick when the time comes. I'd recommend picking up the MOTM oscillator soon anyway, as the 300->120->410 combination sounds *huge*. Also, potential 300/320 builders should know that the latest Radio Shack circular lists their heat sink grease as on sale for $1.99 a tube (and after having already built two, it looks like I'd have to build a wall of oscillators to use up a single tube of the stuff). -Doug ceres@... At 05:49 PM 01/05/2000 -0800, "Brousseau, Paul E (Paul)" <PaulBr@...> wrote: >Is the resistor simply to be used on 10V peak-to-peak signals? And if so, >will the planned pre-amp module bring signals up to that strength, requiring >the resistor at all times? Or is there something else about the MOTM >oscillator (I can't imagine what exactly, amperage?) that makes it >necessary?
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Re: MOTM-410 question...
2000-01-06 by Doug Pearson
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