Moog Model 15 Preset Box - first three oscillator demo...

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noddyspuncture
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Moog Model 15 Preset Box - first three oscillator demo...

Post by noddyspuncture »

I've finally finished building and calibrating my 901A & 901B modules as "revised/redesigned" and modified by Bob for Keith. Working from Bob's original drawings and notes it was quite a project but worked out wonderfully..! So my Model 15 has two 921A controllers with two 921B oscillators... and now these custom 901A & 901B modules which I have named the "k.e." versions. ;)

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Re: Moog Model 15 Preset Box - first three oscillator demo...

Post by Dave Peck »

Thumbs up, Indeed!!
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Re: Moog Model 15 Preset Box - first three oscillator demo...

Post by jdkJake »

Very nice! You will have quite the performance instrument once you complete a few more of those preset cards.
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Re: Moog Model 15 Preset Box - first three oscillator demo...

Post by 3vcos »

What schematics and docs are you working from?
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Re: Moog Model 15 Preset Box - first three oscillator demo...

Post by fitzgreyve »

:yay:
Under developement:
- CV2MIDI
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---------------------------------------
https://fitzgreyve2.blogspot.com/
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Re: Moog Model 15 Preset Box - first three oscillator demo...

Post by Flareless »

WOW! :woah: :tu:
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Re: Moog Model 15 Preset Box - first three oscillator demo...

Post by Micronians »

WOW, that is amazing.
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noddyspuncture
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Re: Moog Model 15 Preset Box - first three oscillator demo...

Post by noddyspuncture »

3vcos wrote: Wed Jun 15, 2022 6:51 pm What schematics and docs are you working from?
Keith Emerson's original Modular service manual.
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Re: Moog Model 15 Preset Box - first three oscillator demo...

Post by Jazzman »

I was searching the web for more info on this modular patch preset box. That lead me to your posts on the Moog forum. Very informative

https://forum.moogmusic.com/viewtopic.php?t=34772

Wow, that's quite a complex project. Good work.
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Peake
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Re: Moog Model 15 Preset Box - first three oscillator demo...

Post by Peake »

8-)
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Re: Moog Model 15 Preset Box - first three oscillator demo...

Post by 3vcos »

Secrets secrets secrets.
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Peake
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Re: Moog Model 15 Preset Box - first three oscillator demo...

Post by Peake »

Such as how can they track so widely?
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3vcos
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Re: Moog Model 15 Preset Box - first three oscillator demo...

Post by 3vcos »

Or just the notes from Bob
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Re: Moog Model 15 Preset Box - first three oscillator demo...

Post by noddyspuncture »

3vcos wrote: Tue Jun 21, 2022 10:41 pm Or just the notes from Bob
I do have to honour the promise I made to my source to not share.
Also with Emo being a good friend of mine... it was on that agreement I obtained the info.

I can share demo's of the finished article though. :love:
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Re: Moog Model 15 Preset Box - first three oscillator demo...

Post by noddyspuncture »

Peake wrote: Tue Jun 21, 2022 9:13 pm Such as how can they track so widely?
Two of the osc/controllers are the 921's... well, one of the 921 controllers I cloned myself but that was the easiest part of the whole project actually.

The 'Emo' 901A and 901B do track perfectly, once I found the right FET and calibrated it as per the instructions. It is a complete redesigned though and much more like the 921's than the original 901's which I suppose was the whole point of Bob deciding to revise them..?

Having said that, the original 901's in my R.A. system - with the diode array expo - and also the 901A & 901B I built myself track pretty well too. I've been using them live for years now..! ;)
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Re: Moog Model 15 Preset Box - first three oscillator demo...

Post by Peake »

Awesome work, love it!
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Re: Moog Model 15 Preset Box - first three oscillator demo...

Post by noddyspuncture »

Peake wrote: Wed Jun 22, 2022 7:41 pm Awesome work, love it!
I'm planning on making another video showing the insides and the construction of the revised 901 modules, with a more detailed demo of the tuning and tracking etc...

;)
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