Interested in Tau Pipe Phaser / Flanger boards ?

funkyfarm · Posted: Sun Jun 29, 2008 12:20 pm Post subject:

(I'm not afraid at all but) yes, i guess i can hear some clicks, when lfo Rate reaches a certain point...
I'm sure that with some more careful wiring everything will be alright.

But i've started wondering what causes clicks in the audio path (how silly I am) : LED itself (brief current load ? small drop voltage or else ?) or the presence of the lfo circuitry (next to audio).

BlueHell, i've put 22R/22uF network for power supply, i even get some ferrite beads recently (if needed).

As I know i'm guilty on this project, consider this request as precautions not to end up with clicks. Smile

jhaible · Posted: Sun Jun 29, 2008 2:01 pm Post subject:

At the low end of the sweep range, the ladder is rather high-impedance.
so it would be a good idea to keep LED wires away from the ladder to avoid capacitive coupling.

But you can check this by temporarily disconnecting the LEDs (on the PCB side!).

If the wires to the LED are what causes the click, and you don't have enough room to place them far enough from the transitor arrays & capacitors, you could still shield these wires.

JH.

funkyfarm · Posted: Sun Jun 29, 2008 2:58 pm Post subject:

Funky40 · Posted: Sun Jul 13, 2008 12:55 pm Post subject:

Hi there,

i wired up my Tau last Weekend, but i thought it is not running good.
But now it seems to be ok.

Not really finished all, but close to.......
stuppidly the Frontpanel was drawn with a up-down switch.
I was thinking that this makes no sense, but i had no other Iedea what up-down could mean, hehe Embarassed

Later i had a look at Jürgens Page......

The new Frontpanel, mainly for the Tau Nr.2 is drawn allready.
I will omitt the Output attenuators ( they are anyway not wired for now ) and i will omit the 1V/oct muteswitch.

Yesss, my first Phaser....... Very Happy

and also my First Jürgen Haible Module.

Query:
the 33PF caps: can they be ceramic ? I mean the cheap wheels......scheiben.
It's the only part i miss to finish the second

IMGe_0127.jpg

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My first Jürgen Haible Module: The Tau Phaser

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jhaible · Posted: Sun Jul 13, 2008 11:50 pm Post subject:

haima · Posted: Sun Aug 03, 2008 9:47 am Post subject:

Jürgen - i don't know if this is the right place to ask, but do you have any tau boards left?

if not, you are planning on making a "core tau board" for the dim TD project aren't you - so i suppose i could use those?

thanks, and sorry to bother you with these kinds of questions!
haima

jhaible · Posted: Sun Aug 03, 2008 1:28 pm Post subject:

numbertalk · Posted: Wed Aug 20, 2008 1:37 pm Post subject:

Hi Juergen,

For the Compact Phasing clone you mention if using an 18VAC wall wart to up the 470uf caps to 1000uf/50V - does the same need to be done if using a wall wart for the Tau?

Also any tips on setting the 3 trimmers?

Thanks.

jhaible · Posted: Wed Aug 20, 2008 4:15 pm Post subject:

numbertalk · Posted: Thu Aug 21, 2008 7:50 am Post subject:

jhaible · Posted: Thu Aug 21, 2008 10:00 am Post subject:

numbertalk · Posted: Thu Aug 21, 2008 10:10 am Post subject:

jhaible · Posted: Thu Aug 21, 2008 1:51 pm Post subject:

numbertalk · Posted: Fri Aug 22, 2008 9:43 am Post subject:

Thanks!

funkyfarm · Posted: Sat Aug 23, 2008 1:56 pm Post subject:

I think i will get a 2U panel for it.

Tau_Phaser_Panel_85_001.fpd

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numbertalk · Posted: Fri Sep 19, 2008 9:42 am Post subject:

Hi,

EDIT - Just found in the thread where you say you can use something like a 500R or 1K pot in series for the V/Oct adjustment - would this be linear taper?

I can't quite make it out on the page on your site (and it seems Bill & Will reference 2 different values for this - 1M and A10K) - could you tell me what value and taper of pot to use to fine tune CV in/V/Oct from the front panel? Looks like a 1K to me on your site but if so what taper?

Thanks!

Funky40 · Posted: Sun Oct 12, 2008 10:27 am Post subject:

In the meantime i have two Tau Phasers running and i got somewhat the hang for it.

FANTASTIC Module, i Love it !
It brought my Modularsynth one step further.
but it takes some time to know it good.
It reacts REALLY different to different sounds.

My first Phasers in my Synth, and the first Phaser i really like.
I'm very glad to have one, ...öhmmm two Wink

It makes IMO sense to have two btw.

Thanks Jürgen !

b-funk · Joined: Jul 17, 2007 Posts: 193 Location: Berlin

I told you so!!! Very Happy

jhaible · Posted: Mon Oct 13, 2008 2:00 pm Post subject:

numbertalk · Posted: Tue Oct 14, 2008 6:40 am Post subject:

Thanks!

Funky40 · Posted: Wed Oct 22, 2008 3:06 pm Post subject:

Hello Jürgen,

I like to modifie the LFO on my Tau.
The answer how to slow down i found here

The main point is that i like to close the modulation depth to zero ( or close to zereo ). It does not now.
the other point is that i not only like to have the LFO slower, i also like to have it faster.
How to do this ?

jhaible · Posted: Wed Oct 22, 2008 3:20 pm Post subject:

Funky40 · Posted: Thu Oct 23, 2008 4:17 pm Post subject:

thanks Jürgen, i will try.
Better than LF412 ? I assume the LT1013 would be one.

How about the modulation depth, how can i close this to Zero or minimise it.
Now i have by default allways a Modulation.
Perfect for common Phaser use, but not for modularsynth experiments.