Search found 18 matches

by robotmakers
Fri Oct 27, 2017 11:32 am
Forum: Modular Forum
Topic: 901 vs. 921
Replies: 9
Views: 4889

Re: 901 vs. 921

The magic of the 901 modular VCO set is that the 901Bs share one exponential converter in the 901A. This means that when the 901Bs are set to detune slightly from each other, the RATE of beating (i.e. the offset in Hz) remains constant throughout the range of the keyboard. Technically, each 901B is...
by robotmakers
Thu Jul 21, 2016 2:39 pm
Forum: Moog Music General Topics Forum
Topic: Keith Emerson Tribute at El-Rey in LA
Replies: 9
Views: 1499

Re: Keith Emerson Tribute at El-Rey in LA

http://www.keyboardmag.com/artists/1236/the-official-keith-emerson-tribute/58774 Anyone know if this was taped by HBO or Showtime or if there will be a DVD/CD available in the future? Was thinking same thing when I saw this. Glad to hear that a DVD release is planned! Looking forward to the DVD. Wa...
by robotmakers
Wed Jul 29, 2015 11:49 am
Forum: Moog Music General Topics Forum
Topic: Adjusting slope of a 911EG ?
Replies: 4
Views: 542

Re: Adjusting slope of a 911EG ?

Yes, I meant to say that it's probably a case of possibly changing the slope from linear to exponential....if it could be done by altering or adding some components ? You could at least experiment with the results by feeding the 911EG to the control input of a 902 VCA set to exponential. Then feed ...
by robotmakers
Tue Jul 07, 2015 4:10 pm
Forum: Moog Music General Topics Forum
Topic: Power-One supply for modular
Replies: 3
Views: 961

Re: Power-One supply for modular

I did precisely this, but also creating the -10v source required by 901 VCOs. It works perfectly, and I recommend it as an excellent solution. This thread describes it in some detail. There is no issue with grounding - simply tie the two grounds together. I actually did exactly this for two separate...
by robotmakers
Fri Mar 06, 2015 8:53 pm
Forum: Moog Music General Topics Forum
Topic: Please explain the 911a
Replies: 7
Views: 859

Re: Please explain the 911a

This is another way to think about it. The way these retro gate or trigger delays (like the Moog) work is the following: they take a GATE as input. The RISING edge of the gate is delayed. The TRAILING edge is unchanged. So, if you try to set the delay to longer than gate "on time", you wil...
by robotmakers
Sun Mar 01, 2015 10:42 pm
Forum: Moog Music General Topics Forum
Topic: Modding PowerOne supplies for vintage modular Moog
Replies: 8
Views: 1471

Re: Modding PowerOne supplies for vintage modular Moog

Hi Tom,

Glad you were able to make the 910 power supply work for you.

Cheers,
Roger
by robotmakers
Tue Feb 24, 2015 6:24 pm
Forum: Moog Music General Topics Forum
Topic: Modding PowerOne supplies for vintage modular Moog
Replies: 8
Views: 1471

Re: Modding PowerOne supplies for vintage modular Moog

Hi Peter, In my case, the original supplies were not usable. But further, the performance of a 1960's era power supply, even one with properly functioning components, is simply not going to be comparable to a modern supply like the PowerOne. While I can't say whether the VCOs I have could be made to...
by robotmakers
Mon Feb 23, 2015 10:33 pm
Forum: Moog Music General Topics Forum
Topic: Modding PowerOne supplies for vintage modular Moog
Replies: 8
Views: 1471

Re: Modding PowerOne supplies for vintage modular Moog

Sorry it wasn't clear. I use BOTH supplies mentioned in the post, in order to generate the three required voltages. One supplies the -6v line, and the other supplies the +12v and the -10v lines. I've used the pair of supplies in a rack system and will be also installing the pair in a separate P cabi...
by robotmakers
Mon Feb 23, 2015 3:41 pm
Forum: Moog Music General Topics Forum
Topic: Modding PowerOne supplies for vintage modular Moog
Replies: 8
Views: 1471

Modding PowerOne supplies for vintage modular Moog

I'd posted this over at Muff's but thought it could be of interest here as well for folks interested in replacing their old power supplies. As we now all know, early Moog modulars with 901 VCOs used +12v, -6v and -10v supplies. (The later ones with 921 VCOs ditched the -10v line). In any case, off-t...
by robotmakers
Sat Jun 21, 2014 5:42 pm
Forum: Moog Music General Topics Forum
Topic: Anyone know anything recent about Mike Bucki?
Replies: 52
Views: 10017

Re: Anyone know anything recent about Mike Bucki?

FWIW, my Bucki MoogCE 921A also has the toggle switch. OTOH, my Don Martin 902 has a black rocker, like my RA moog 902. The Martin unit pre-dates the Bucki module by a couple of years.

Whatever,
Roger
by robotmakers
Mon Feb 10, 2014 1:58 pm
Forum: Moog Music General Topics Forum
Topic: Testing 904a...
Replies: 13
Views: 1737

Re: Testing 904a...

Just for the internet archives, the Don Martin era 904a is a clone of the Rev "C" 11/10/70 version, and self-oscillates with abandon.

Cheers,
Roger
by robotmakers
Thu Jan 23, 2014 2:03 pm
Forum: Moog Music General Topics Forum
Topic: Poll: What do you use your Moog gear for?
Replies: 19
Views: 1889

Re: Poll: What do you use your Moog gear for?

My response is entirely parallel to MC's: I have a serious day job and that's where I earn my income. I've played piano since age 5, etc. and my day job pays for this hobby. The only music related income I make is from a couple of songs authored for the Rock Band video game, and 0.001 cents per stre...
by robotmakers
Fri Jan 17, 2014 1:07 pm
Forum: Moog Music General Topics Forum
Topic: Anyone know anything recent about Mike Bucki?
Replies: 52
Views: 10017

Re: Anyone know anything recent about Mike Bucki?

Yes, back in the day Mike would fabricate Moog modules that were in all respects identical to what came out of the factory. I bought a 921A and four 921Bs from him back around 2000 or so. Even then, it wasn't easy to contact him, and I recall having to leave a number of voice- and e-mails. He eventu...
by robotmakers
Fri Jan 17, 2014 12:45 pm
Forum: Moog Music General Topics Forum
Topic: COMING NAMM 2014
Replies: 168
Views: 101884

Re: COMING NAMM 2014

You could of course both (you and Kenneth) be correct, we won't know until we have a demo. I was just saying this because the Sonic Six is labelled this way too, and it's using this switches that you can select to play either 2 notes separately, with OSC 2 in drone mode or at an interval of OSC 1. ...
by robotmakers
Thu Jan 16, 2014 2:44 pm
Forum: Moog Music General Topics Forum
Topic: COMING NAMM 2014
Replies: 168
Views: 101884

Re: COMING NAMM 2014

The main thing that indicates that it's duophonic (apart form it now being said loud and clear by Amos), are the words "KB CTRL", "LO" and "HI", they are the real telltale signs IMHO, the KB CTRL switch is likely applicable to the MONO MODE, and would change the note p...