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verslibre View Drop Down
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Direct Link To This Post Topic: The mighty modular synth
    Posted: March 09 2018 at 13:27
Originally posted by Quinino Quinino wrote:

ACHTUNG: I see some smoke coming from the Tesla coil in the upper cabinet on the right side of the 4th oscillator counting from the main power generator, please confirm ...

LOL
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Direct Link To This Post Posted: March 09 2018 at 06:57
Advanced kit. ;-)
All simple stuff, really. 



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Direct Link To This Post Posted: March 09 2018 at 06:56
In a slight twist, I've decide to make some modern valve radio kits. Means building my own enclosures, not a problem. So these are on the to do list for later. Just for my own amusement. ;-)

Basic kit, I'll find some 1930's Bakelite knobs.... 


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Direct Link To This Post Posted: March 08 2018 at 08:53
Oh, this is normal. ;-) 

Having built anything for the synth, it's usual to kiss it goodbye before plugging it in, switching the power on and watching the Magic Smoke escape. This is what's prematurely aged me. 

Had a good few months, no minor fires or substations knocked out in Macclesfield recently. ;-)

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Direct Link To This Post Posted: March 08 2018 at 08:11
You're a good sport, old chap, I hate to see you in so dire straits at (y)our age LOL

(good luck, keep us updated on your saga)
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Direct Link To This Post Posted: March 08 2018 at 08:00
Oh yes, soldered that bit up wrong. ;-)

Actually, I blew up a sequencer last week. Boxes on top of the right hand case. No idea how, I think I connected the clock out to some with a hot output. So it's out with the multimeter or find £300 for a replacement. I choose the multimeter. ;-)

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Direct Link To This Post Posted: March 08 2018 at 07:13
ACHTUNG: I see some smoke coming from the Tesla coil in the upper cabinet on the right side of the 4th oscillator counting from the main power generator, please confirm ...
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Direct Link To This Post Posted: March 08 2018 at 06:40
Currently in the synth - 9 oscillators, four filters, 8 sequencers, etc etc. 

I'll be building some clock generators this weekend and then some envelope generators after that. Fun with a soldering iron. 

Edited by Davesax1965 - March 08 2018 at 06:41

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Direct Link To This Post Posted: March 08 2018 at 06:39
Latest pic. Another case planned.... ;-)



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Direct Link To This Post Posted: January 19 2018 at 10:14
I think my bank manager wishes I did. ;-)

To build. 5 voltage controlled oscillators
4 eight step sequencers
Various other rubbish. ;-)

It's going to spill over into another case. The case is £450. Just the case and power supply. ;-)

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Direct Link To This Post Posted: January 19 2018 at 08:16
Lovely !
(I wish you don't get electrocuted while drooling  LOL)
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Direct Link To This Post Posted: January 19 2018 at 06:13
I think I have enough case lighting for now. ;-)



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Direct Link To This Post Posted: January 13 2018 at 04:37
LIVE - real time. Using a tiny part of the system. Tangerine Dream, anyone ?


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Direct Link To This Post Posted: November 25 2017 at 09:19
Sequencer madness. 



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Direct Link To This Post Posted: November 21 2017 at 06:09
Change of attack. I'll be doing online collaborations with space rock and krautrock bands, so !!! Position closed for the audio generator operator. No live gigs or jams planned, too much lugging gear around. 

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Direct Link To This Post Posted: November 08 2017 at 03:20

As a quick aside, anyone in the Manchester UK area fancy learning how to play the audio generator ? Spare seat during jam sessions. No musical ability (or technical ability) required. 

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Direct Link To This Post Posted: November 04 2017 at 07:46
Whoops, it's doubled in size after I accidentally bought another case. Silly me. ;-)

Actually, I might split the sequencers between the two cases and have TWO keyboard controlled modulars. Undecided. 



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Direct Link To This Post Posted: October 30 2017 at 08:20
Occasionally, it's great to just switch the system on and look at all the flashy lights. OOooooooOoOoo ! ;-)



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Direct Link To This Post Posted: May 01 2017 at 07:33
So now I'm building another four (4) eight step sequencers. 
These take clock and reset data from the sequencers currently in another rack (containing three analogue synths.) 

The four sequencers run (in the modular) in parallel with the other two. As they run, a sequential switch triggers each one in sequence. They can be individually patterned to run forwards, backwards . both, in a crab or Z pattern or randomly. Or clocked to run at a divide/multiply rate (when I get the appropriate modules. ;-) ) 

The end result is three synths playing off two synched and patterned Doepfer Dark Time sequencers, and six (at least) oscillators on the module running off four sequencers. Should be quite, er, interesting. ;-) 

Probably more sequencers than Tangerine Dream had at any point. 

The result is that the modular is going to double in size by about another 15U, that's one big and one medium cabinet extra, to hold all the modules which the rebuild has displaced, and to make room for other ones. 

Work so far, two new sequencers built - the "waterfall" green lights in the bottom row of the right hand case. These are running in parallel with the sequencer rack, to the left. Another couple of weekends work and there'll be the full complement of six sequencers. ;-)



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Direct Link To This Post Posted: March 27 2017 at 05:37
Well, to be honest, it's not a very random process. ;-) 

For example, if you want to do a harmonic filter sweep, turn the filter resonance up or down. Same thing with the waveslicers or phaser - it's just learning a whole new system. It's all very logical, but you need some knowledge of signal paths and how analogue synthesizers actually work.  

In the shot above, nothing is plugged in. Of course, a modular synth has to be cabled up, or it does nothing. So imagine this with 100 leads coming out of it. Eurorack is a very compact format and it can get a little tight to work with at times. 

Just ordered a shed load of panels and PCBs from Switzerland. The next step is to build a load of sequencers and sequential switches which will synchronise with the two sequencers (and three synths) to the rack system on the left of the photo. There are four eight step sequencers and one sequential switch coming. This means "Tangerine Dream roll over", basically. I'm thinking of putting the output through an arpeggiator, it'll sound like Ricochet Part 2, but even more so, if that makes sense. 

The bottom cabinet is going to have joysticks and mod wheels added. There will probably be another large cabinet added to the system - you can just grow and grow these without any upper limit, apart from your sanity and bank balance. It's already much, much more complicated than Keith Emerson's Moog or the system used by Tangerine Dream. 

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