Jürgen Haible Krautrock phaser BUILD THREAD

sixty_n · Post by **sixty_n** » Sun Oct 18, 2015 7:58 am

Thanks for the info PWM and pulsepsycle, I had a feeling you might be able to wire the DPDT for all three but it hurt my head trying to think how to do it

AlanP · Post by **AlanP** » Mon Oct 19, 2015 1:51 am

PWM wrote:Instead of using a rotary switch you can wire a DPDT switch up like this:

To clarify, these are *not* DPDT (double-pole, double-throw) switches.

These are DP3T switches (double-pole, three-throw), in DPDT look-a-like packaging.

PWM · Post by **PWM** » Mon Oct 19, 2015 2:14 am

ofcourse, you're right! Apologies.

PWM · Post by **PWM** » Fri Oct 23, 2015 5:10 am

I recievd my Krautrock phaser eurorack panel today. I made some mistakes in the design - first time designing/ordering at panel pool - but, I'm very happy with the result.

alamandra · Post by **alamandra** » Sat Oct 31, 2015 11:39 am

PWM wrote:I recievd my Krautrock phaser eurorack panel today. I made some mistakes in the design - first time designing/ordering at panel pool - but, I'm very happy with the result.

looks nice will look far better with the nobs and switches in ofc otherwise the lines are a bit gangly/overly long.

PWM · Post by **PWM** » Sat Oct 31, 2015 11:59 am

See for your self:

[EDIT] I made some minor changes to the 'final' design.

alamandra · Post by **alamandra** » Sat Oct 31, 2015 12:54 pm

Yeh, much better looks cool. I think I'm a bit jealous lol, curious though how deep is that?

PWM · Post by **PWM** » Sat Oct 31, 2015 12:57 pm

Thanks!
I'll measure it for you, tomorrow that is.

You can have the Target3000 file of you like. The panel was somewhat less of €45,-

alamandra · Post by **alamandra** » Sat Oct 31, 2015 1:31 pm

PWM wrote:Thanks!
I'll measure it for you, tomorrow that is.

You can have the Target3000 file of you like. The panel was somewhat less of €45,-

No rush on the deepness, more curiosity than anything. Not sure if I'll need the panel, I was fixed on getting an enclosure but having seen one eurofied I'm not married to that so much now.

PWM · Post by **PWM** » Sun Nov 01, 2015 11:33 am

Depth is 170mm.

alamandra · Post by **alamandra** » Mon Nov 02, 2015 10:11 am

PWM wrote:Depth is 170mm.

shit the bed you weren't joking about deeep lol. Not a chance of getting that in mine.

PWM · Post by **PWM** » Mon Nov 02, 2015 11:40 am

Haha. Too bad. A stand alone version comes with it's benefits, though.

DabiDabDab · Post by **DabiDabDab** » Mon Nov 02, 2015 11:31 pm

PWM wrote:Haha. Too bad. A stand alone version comes with it's benefits, though.

What did u fix the board to? Arent all the pots wired in and i dont see any mouting holes for the pcb on the panel as well?

PWM · Post by **PWM** » Tue Nov 03, 2015 1:47 am

The pots and jacks are pcb/panel mount, mounted on a veroboard (single islands) The Krautrock PCB is mounted to the pot PCB with brackets. I make these brackets from an old computer chassis.

PWM · Post by **PWM** » Tue Nov 03, 2015 5:44 am

Here's a pic:

DabiDabDab · Post by **DabiDabDab** » Tue Nov 03, 2015 6:53 am

Right, right, cheers!

PWM · Post by **PWM** » Tue Nov 03, 2015 7:57 am

Your very welcome.

alamandra · Post by **alamandra** » Sun Nov 08, 2015 3:13 pm

Looks rather time consuming, not going to be cheap to pay someone for their time to make me one lol.

condor13 · Post by **condor13** » Fri Jan 15, 2016 5:04 am

Hello, just finished the build, but the lamps are not working. The phasing works, the panel lamp lights up, in out function works, bypass relay works. Theres no oscillation. I used a 18v, 105mA transformer HAHN from tme. Is the current on the transformer to small? Where should i check first

Thanks

Link Transformer

PWM · Post by **PWM** » Fri Jan 15, 2016 6:43 am

Did you double, double check if all components are in the right place?
Could you make a (hi res) picture of both sides of the PCB and upload them here? A link to the actual transformer you used is helpful as well..

condor13 · Post by **condor13** » Fri Jan 15, 2016 7:45 am

PWM wrote:Did you double, double check if all components are in the right place?
Could you make a (hi res) picture of both sides of the PCB and upload them here? A link to the actual transformer you used is helpful as well..

I`ll post asap a Hi-res photo. Yes double checked the components. The link to transformer is: PDF TME HAHN 303 2034 and link to site Link.
Thanks again.

PWM · Post by **PWM** » Fri Jan 15, 2016 8:09 am

There's a good chance your transformer doesn't deliver enough current. The 3 lamps alone can draw around 100mA, more or less. Then there's the regulators, quite a lot of OpAmps, etc.

Unfortunately I can't measure the current draw on my Krautrock because it's still not completely finished... D:

condor13 · Post by **condor13** » Fri Jan 15, 2016 9:36 am

PWM wrote:There's a good chance your transformer doesn't deliver enough current. The 3 lamps alone can draw around 100mA, more or less. Then there's the regulators, quite a lot of OpAmps, etc.

Unfortunately I can't measure the current draw on my Krautrock because it's still not completely finished... D:

No worries. I`ll double triple check the components and soldering, then i`ll get a torodial

Thanks

PWM · Post by **PWM** » Fri Jan 15, 2016 9:50 am

You're very welcome. Keep us posted.

Zergon · Post by **Zergon** » Wed Jan 20, 2016 2:56 pm

Hi, I have 2 questions:
- do you people put heat paste between heatsinks and components?
- do you solder heatsinks to pcb?

Thanx!

MOD WIGGLER

MOD WIGGLER

Jürgen Haible Krautrock phaser BUILD THREAD

Lamps not working