Author |
Message |
AlanP
Joined: Mar 11, 2014 Posts: 746 Location: New Zealand
Audio files: 41
|
Posted: Sun Jan 03, 2016 5:09 pm Post subject:
2016 Builds! Subject description: Show us what you've been cooking up! |
|
|
Edit -- here is last year's build thread -- http://electro-music.com/forum/topic-63607.html
Thomas Henry's VC Quadrature Function Generator. I'm quite happy with how this turned out, looks the business
For those who are curious as to the construction... Last edited by AlanP on Mon Oct 17, 2016 12:00 am; edited 1 time in total |
|
Back to top
|
|
|
Gman
Joined: Jul 18, 2015 Posts: 12 Location: New Jersey
|
Posted: Wed Jan 06, 2016 4:43 pm Post subject:
|
|
|
Been working on this modular for over a year now! Had some time to work on it over winter break. Built a new sequencer, 2x sequential switches, yusynth sample/hold, and a thomas henry white noise circuit. I also got a label maker and used that for all the labels on the synth and bought plenty of knobs too! Also I've reached a point where I've been spending more time learning how to play it than I am building it now that I have plenty of complete modules. I did many covers including this Daft Punk song https://www.youtube.com/watch?v=mK_Khrs8284
|
|
Back to top
|
|
|
AlanP
Joined: Mar 11, 2014 Posts: 746 Location: New Zealand
Audio files: 41
|
Posted: Fri Jan 15, 2016 5:11 pm Post subject:
|
|
|
Lovetone Flange With No Name, done tinysize! (I think my big box version is still loaned out to someone.) This is in a 1790NS enclosure!
Another PCB sandwich with this one, and I'm quite proud of how nicely it worked out. Wiring is still a bit of a pig, but it's unescapeable with two stomps and four jacks.
To give you an idea of the vertical clearance --
|
|
Back to top
|
|
|
PHOBoS
Joined: Jan 14, 2010 Posts: 5591 Location: Moon Base
Audio files: 705
|
Posted: Fri Jan 15, 2016 8:19 pm Post subject:
Euro-rack modular PSU |
|
|
made a (wall wart) PSU for a euro-rack modular.
Description: |
busboard with extra copper wiring. |
|
Filesize: |
89.8 KB |
Viewed: |
678 Time(s) |
This image has been reduced to fit the page. Click on it to enlarge. |
|
Description: |
|
Filesize: |
82.09 KB |
Viewed: |
653 Time(s) |
This image has been reduced to fit the page. Click on it to enlarge. |
|
Description: |
|
Filesize: |
93.06 KB |
Viewed: |
654 Time(s) |
This image has been reduced to fit the page. Click on it to enlarge. |
|
Description: |
|
Filesize: |
95.77 KB |
Viewed: |
656 Time(s) |
This image has been reduced to fit the page. Click on it to enlarge. |
|
_________________ "My perf, it's full of holes!"
http://phobos.000space.com/
SoundCloud BandCamp MixCloud Stickney Synthyards Captain Collider Twitch YouTube |
|
Back to top
|
|
|
wackelpeter
Joined: May 05, 2013 Posts: 461 Location: germany
Audio files: 10
|
Posted: Sat Jan 16, 2016 1:50 am Post subject:
|
|
|
Oh that looks fine Phobos.
How much current can your PSU provide or handle and what AC voltage has it's on the Output or secondary side?
I'm just asking because i'm thinking about an wall wart PSU for +/-15V for my Systems...
At the beginning i build one out of a real transformer but that took too much space in my box and i was a bit afraid of having that big transformer with it's 230V AC in my metal box... even if i took care about grounding, main fuse and protecting the mains from touching accidentaly with some strips of adhesive and protecting the cable against pulling it out of it's terminal clamps...
I always fear that the adhesive may someday get loose and a flying cable could get in touch with my mains... that wouldn't be that funny... _________________ https://soundcloud.com/bastian-j |
|
Back to top
|
|
|
PHOBoS
Joined: Jan 14, 2010 Posts: 5591 Location: Moon Base
Audio files: 705
|
|
Back to top
|
|
|
wackelpeter
Joined: May 05, 2013 Posts: 461 Location: germany
Audio files: 10
|
Posted: Sat Jan 16, 2016 9:21 am Post subject:
|
|
|
Hey Phobos,
thanks for the fast reply. Well i have some simple knowledge about These power calculation Terms...
I guess my supplies shouldn't have to handle more than 0,5A on each rail... This Comes out of the reason i want to Keep my cases or racks moveable... not to big and therefore not too many modules...
in my previous briefcase boxes i had approx 250-300mA per rail... depending on how much i stuffed inside...
Now that i have only a small Aluminium briefcase left i decided to mount a few modules in a 19" rack with a wooden housing... it's height is about 55cm and there i can either use the previous psu's wich are a bit more costy or try to use an self build psu... as one of my other psu's wouldn't do the Job alone in one of These racks if e Keep mouting all my modules so Close as before...
but i think it suits me best to have them in this Format so i can mount them together or leave them alone... Kind of LEGO building...
but with this wall wart psu i would feel a lot better as with open Transformators inside my case...
From my work i could have from time to time Access to either 2x24VAC Transformators or even 24VAC wall wart PSU with 1-1,5A...
P.S. The idea with the extra copper traces is a clever Thing... i tried to achieve a similar efficency by simply bridging 3 copper traces on my stripboard on each side of the fuse holder as this matched the size between those Pins.... on the secondary side i used some Serial clamps which Pins are also soldered each to the other... _________________ https://soundcloud.com/bastian-j |
|
Back to top
|
|
|
strategy
Joined: Jan 03, 2009 Posts: 87 Location: portland, oregon
|
Posted: Sun Jan 17, 2016 6:46 pm Post subject:
|
|
|
My first completed build of 2016, a Marantz PMD221 deck outfitted as a DIY tape delay! Including a DIY tape loop inside the cassette!
_________________ --------
community-library.net/strategyhome.htm |
|
Back to top
|
|
|
AlanP
Joined: Mar 11, 2014 Posts: 746 Location: New Zealand
Audio files: 41
|
Posted: Sun Jan 17, 2016 9:10 pm Post subject:
|
|
|
I really don't have the circuit-bending gene (I barely audition transistors in fuzzes), but I can admire a classy job like that! |
|
Back to top
|
|
|
sduck
Joined: Dec 16, 2007 Posts: 459 Location: Nashville
Audio files: 5
|
|
Back to top
|
|
|
AlanP
Joined: Mar 11, 2014 Posts: 746 Location: New Zealand
Audio files: 41
|
Posted: Wed Jan 20, 2016 10:22 pm Post subject:
|
|
|
Stephen, your 5U adaptations always look really nice! |
|
Back to top
|
|
|
wackelpeter
Joined: May 05, 2013 Posts: 461 Location: germany
Audio files: 10
|
Posted: Sat Jan 30, 2016 2:35 pm Post subject:
|
|
|
Not finished yet...
Right now working lower left Corner Scott Bernardi VC Delay,
lower right Corner Thomas Henry 4046 VCO
On the greater frontplate:
1x CGS MAster divider
1xCGS Pulse Divider
1xCGS Gate Sequencer
2xCGS Burst Generator
2xCGS Mixer (3Input)
4xCGS Gate to Trigger (or 2 if you count as per orignal PCB)
2xCGS And Logic (Trannie)
2xCGS OR Logic (Trannie) which acts like a Nand (right now i'm to lazy to fix it)
One Gate Sequencer and one pulse divider soon to be added... but i ran out of diodes and on-off-on Switches...
not mounted yet is also a cgs triple-bi-directional Switch... board is ready but will be mounted in the spare samller Panel to be fit on top
Behind the Panels are 2 +/-15V PSU's one for Sound-stuff and one for all the blinky modules...
btw. i will never use such big Panels again... that was horrible to drill These 208 holes with a accu-driven Drilling machine... as the material is a bit thicker it was at least more than 600 times i drilled holes in there... going from small to bigger drills...
Description: |
|
Filesize: |
909.16 KB |
Viewed: |
429 Time(s) |
This image has been reduced to fit the page. Click on it to enlarge. |
|
Description: |
|
Filesize: |
643.99 KB |
Viewed: |
430 Time(s) |
This image has been reduced to fit the page. Click on it to enlarge. |
|
_________________ https://soundcloud.com/bastian-j |
|
Back to top
|
|
|
PHOBoS
Joined: Jan 14, 2010 Posts: 5591 Location: Moon Base
Audio files: 705
|
|
Back to top
|
|
|
PHOBoS
Joined: Jan 14, 2010 Posts: 5591 Location: Moon Base
Audio files: 705
|
|
Back to top
|
|
|
sonic
Joined: Dec 02, 2010 Posts: 106 Location: Victoria BC
|
|
Back to top
|
|
|
LFLab
Joined: Dec 17, 2009 Posts: 497 Location: Rosmalen, Netherlands
|
Posted: Tue Feb 02, 2016 5:40 am Post subject:
|
|
|
Built a whole bunch of things, all of them I designed my own boards for:
Dual LFO based on a circuit by AndrewF
Fritz 5-pulser
Minimoog VCF + VCA, just the discrete core, no opamps used, maybe I'll add a mixer for inputs and buffers.
Serge resonant equaliser:
Balanced outputs (I use it as a monitor controller):
Thomas Henry CMOS ADSR, blinkenlights! |
|
Back to top
|
|
|
smartattack
Joined: Jan 07, 2016 Posts: 5 Location: New York
|
Posted: Tue Feb 02, 2016 4:53 pm Post subject:
|
|
|
How are you making those colored panels? is that via FPE or are you DIY'ing these? If DIY, I'd love to know a few words about your process. They look awesome. |
|
Back to top
|
|
|
elmegil
Joined: Mar 20, 2012 Posts: 2177 Location: Chicago
Audio files: 16
|
Posted: Wed Feb 03, 2016 1:31 pm Post subject:
|
|
|
The colored stuff is FPE; I've used sduck's designs for a couple of Paul Schreiber's modules (E340/E350). They're beautiful. |
|
Back to top
|
|
|
elmegil
Joined: Mar 20, 2012 Posts: 2177 Location: Chicago
Audio files: 16
|
Posted: Fri Feb 12, 2016 9:58 am Post subject:
|
|
|
Nice stress relief last night, knocked it out in a couple hours... Still need Thonkiconn jacks to show up, but otherwise complete.
Description: |
|
Filesize: |
910.19 KB |
Viewed: |
400 Time(s) |
This image has been reduced to fit the page. Click on it to enlarge. |
|
Description: |
|
Filesize: |
846.83 KB |
Viewed: |
389 Time(s) |
This image has been reduced to fit the page. Click on it to enlarge. |
|
|
|
Back to top
|
|
|
ablablablablabla
Joined: Feb 09, 2016 Posts: 7 Location: shitcore
|
|
Back to top
|
|
|
kkissinger
Joined: Mar 28, 2006 Posts: 1354 Location: Kansas City, Mo USA
Audio files: 42
|
Posted: Thu Feb 18, 2016 3:30 pm Post subject:
Building again! |
|
|
Well, I have (finally) set up my workshop again and my current efforts have been to address some "punch list" items on my modular.
Reset on Clock
The picture below is the (beat up, temporary) panel for a "Reset on Clock" function. This is a modification to a "Skip Clock after Reset" function that I did a couple of years ago (Thus the white labels on the module.)
When using my analog synth with my Looperlative LP1, there is an issue with the Reset -- namely that the MIDI reset is sent prior to it's corresponding clock. The analog clock divider and sequencers expect the reset and clock #1 to happen together however the MIDI reset is sent prior to the Clock #1. Thus, the sequencer would advance to position #2 on Clock #1 (not good).
The "Reset on Clock" uses a 4017 counter chip -- the Reset In signal resets the counter chip. When the counter chip receives the (input) clock signal, it steps to its Clock #2. The clock #2 signal is converted to a trigger and sent to "Delayed Reset Out". Clock #3's signal is used to disable to counter chip -- thus, the counter is ready for the next reset.
Balanced Line-level Outputs
Once again, I utilized a Yusynth design: the audio/CV mixer. Since it has simultaneous direct and inverted outputs, this was all I needed to convert an unbalanced signal to balanced. I just made sure to match all the resistors!
This was the first PCB that I've etched in a couple of years and it sure was fun!
Power Supply Buss Wiring
Not very glamorous -- back in the 1970's when I wired up my back plane connectors, I didn't use thick enough wire for the power supply buss. So I replaced it with suitable wiring.
Bypass Capacitors and coils
Some of the old Aries oscillators had really tiny bypass capacitors and they had no resistor or coil to isolate them from the other modules. Thus, there was some "bleed" from the LFO's, Clocks, and modules with LEDs. So, I went through and modified the offending boards to eliminate the problem.
LED Current-limiting resistors
Whenever the Aries "Switches" module cycled, the blinking LEDs impacted the VCO pitches (ever so slightly, barely audible). The solution was to replace the 1K Ohm current-limiting resistors with 5.6K resistors. This makes the LEDs less bright (not a bad thing, really) and eliminates the transient problems.
the (infamous) Klee Sequencer plugs
If I were to build these sequencers again, I would just solder directly to the boards rather than using headers and plugs. A few of the plugs' contacts were not making secure connections. I went through them "with a fine-tooth comb" and got everything to work. I had kind of procrastinated on this work however once I got busy, it only took me a couple of hours on each sequencer to get them working to spec.
In conclusion:
To visit the old Aries modules that I built nearly 40 years ago and make little changes to them so that they work better-than-new is a lot of fun. This work will enable more spontaneous music-making in that I won't lose time to work around problems.
Description: |
The (beat up) panel for the Reset on Clock module. |
|
Filesize: |
963.58 KB |
Viewed: |
370 Time(s) |
This image has been reduced to fit the page. Click on it to enlarge. |
|
_________________ -- Kevin
http://kevinkissinger.com |
|
Back to top
|
|
|
PHOBoS
Joined: Jan 14, 2010 Posts: 5591 Location: Moon Base
Audio files: 705
|
|
Back to top
|
|
|
elmegil
Joined: Mar 20, 2012 Posts: 2177 Location: Chicago
Audio files: 16
|
Posted: Fri Feb 19, 2016 2:38 pm Post subject:
|
|
|
Nice! I wish I could justify the expense of a laser printer.... |
|
Back to top
|
|
|
PHOBoS
Joined: Jan 14, 2010 Posts: 5591 Location: Moon Base
Audio files: 705
|
|
Back to top
|
|
|
kkissinger
Joined: Mar 28, 2006 Posts: 1354 Location: Kansas City, Mo USA
Audio files: 42
|
Posted: Sat Feb 20, 2016 5:15 am Post subject:
|
|
|
Nice panel, Phobos!
I've used the PulsarProFX materials to make PCBs and front panels. It takes a little practice to make the front panels without any "glitches". _________________ -- Kevin
http://kevinkissinger.com |
|
Back to top
|
|
|
|