so my early model moog prodigy had no cv/gate/filter inputs, so i got the kenton kit...installed it myself last night! Wasn't too hard! I think the hardest part was soldering the one CV wire to a trace and then cutting the trace...soldering to a trace is tricky but I tinned up the wire real well and the solder held! Kenton's instructions were pretty easy to follow. Learned that early moogs (mainly minimoogs/prodigys) have F at 0 volts on cv/gate so you need to transpose -5 notes, but my pro-2000 has no problem with that...the kenton kit otherwise lets you do standard CV/Gate (instead of s-trig) which is nice...

anyway the first thing i thought to do was sync my 808/303 to my sequencer and sequence the moog, here's a quick makeshift jam i made if anyone wants to hear it in all it's rawness!! I'm controlling the filter in my sequencer too for the full experience!

www.xero.cc/303808prodigy.mp3

it gets kind of repetitive, but i was just having too much fun! Listen to that raw mooginess!!

oh man, i'm still waiting for my jp8, tracking says next thursday! Still debating whether I'll try to install encore myself, but confidence is up now that i pulled off this cv/gate/filter install!

Cool so see someone who did the CV/Gate mod to the Prodigy recently. I also got an early model and I am thinking about doing this mod.

I considered to get the Kenton kit, but on the other hand there are free instructions to perform the mod like here:

http://machines.hyperreal.org/manufa...igy.cv.mod.txt

Additionally I'd prefer to install standard sized jacks insetad of the mini-jacks delivered in the Kenton kit.

Could you tell if the mod in the above mentioned link is identical to the Kenton mod?

the kenton kit is a little bit different, attached to the wires there's like an inline-circuit so that you can use a regular Gate signal, rather than S-Trig. So it's not exactly the same as the mod in the text file...Also it's note-worthy that 0volts CV is an F on early moogs, rather than a C like on most synths, so you need a CV/Gate controller that supports transposing notes +/- 5 or it will get confusing.

I'm sure you could unsolder the 1/8 jacks and solder on 1/4 jacks, you just need to make sure they're the kind of jacks that are switching (like when you insert a jack, it disconnects the existing CV circuit for example..)

I didn't find it too big of a deal to just use the 1/8" jacks, i have a ton of 1/4 to 1/8 cables laying around though...

the hardest part of the whole mod is that you need to solder to a trace, then cut the trace directly afterwards. This is for the CV signal. The 1/8" jack then becomes a switch, when you have no jack it, it completes the circuit where the trace was cut, when you insert a jack, it bypasses the internal CV signal and uses the input from the jack. Be sure to tin the wire that you're soldering to the trace and just press and hold it for a few seconds with the soldering iron, that's all i had to do and it eventually held.

This thing probably:

http://www.doepfer.de/faq/strig_e.gif

One resistor and one transistor thumbsup

i wouldn't be the least bit surprised! that does look really simple...so i guess you could probably DIY...i guess it depends how adventurous you are! Plus if you have something like the kenton pro solo or pro-2000, it supports s-trig anyway so that mod isn't entirely necessary, but still.

It might be more useful if you could come up with a mod to offset the voltage 5 semitones so that 0 volts = C and not F...

Yeah, a Kenton is all you really need, but it's good to build this little circuit into a cable when you want to run your moog from some analog sequencers or the internal sequencer in some synths (like the Pro One or SH-101).

I've made a couple to trig my micromoog from my Formant sequencer (and more rarely from the 101 & P1).

BTW. i've been to Kenton Electronics in London (well, way out in Wimbledon), they're really the nicest people, but you wouldn't believe than these fine machines are built in that shabby old garage that is their factory/warehouse/office heh

ya i've bought numerous things from them and contacted their support (which is excellent and almost always responds within 24 hours) so i've been pretty happy. I agree the mod is nice cause it does let you run it from other things. But having 0v CV being F instead of C sorta ruins it, since it still needs further conversion, even so, not the biggest deal in the world...i believe a CP-251 could do the conversion in-line if you wanted to drive it directly from a CV sequencer that has 0v=C...Your micromoog might not be effected, I believe the 0v=F only is the case for early minimoogs and prodigys