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blew up headphones? + lfo 1 vs 2

blew up headphones? + lfo 1 vs 2

2008-05-14 by floris vanhoof

is it possible that i broke my sennheiser hd280 (64 ohm) headphones by listening to doepfer 
or formant modulars? the left speaker stopped working, and i only used it w/ my m-box and  directly into doepfer/formant modules.

+

can i speed up a146 lfo2? i think it's a little slower than a145 lfo 1, it sounds a bit lower in 
the "high" position too.

thanks, floris

AW: [Doepfer_a100] blew up headphones? + lfo 1 vs 2

2008-05-15 by hardware@doepfer.de

> can i speed up a146 lfo2? i think it's a little slower than a145
> lfo 1, it sounds a bit lower in
> the "high" position too.
>
> thanks, floris

You will have to replace the timing capacitors by other values. I can add
the components overlay of the A-146 with the corresponding capacitors to the
DIY page if you are interested.

Best wishes
Dieter Doepfer

Re: blew up headphones? + lfo 1 vs 2

2008-05-19 by floris vanhoof

hiii, that would be great, thanks!
+
nobody had problems w/ headphones and modulars?



--- In Doepfer_a100@yahoogroups.com, <hardware@...> wrote:
Show quoted textHide quoted text
>
> > can i speed up a146 lfo2? i think it's a little slower than a145
> > lfo 1, it sounds a bit lower in
> > the "high" position too.
> >
> > thanks, floris
> 
> You will have to replace the timing capacitors by other values. I can add
> the components overlay of the A-146 with the corresponding capacitors to the
> DIY page if you are interested.
> 
> Best wishes
> Dieter Doepfer
>

AW: [Doepfer_a100] Re: blew up headphones? + lfo 1 vs 2

2008-05-20 by hardware@doepfer.de

> hiii, that would be great, thanks!

We have added the timing capacitor positions of these modules:

A-140
A-141
A-142
A-145
A-146
A-147

www(dot)doepfer(dot)com > PRODUCTS > A-100 > DIY page > Timing capacitors

Best wishes
Dieter Doepfer

RE: [Doepfer_a100] Re: blew up headphones? + lfo 1 vs 2

2008-05-20 by David Salter

That's great Dieter,
 
How do different capacitor value affect the range in time, i.e. if I
replaced 100nF with 1000nF or 10nF what sort of difference would I
notice?
 
I was thinking that if it's a large difference to make a little pcb and
have an additional switch to change from standard to new value.
 
Thanks
 
David
 
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* * *
David Salter
Senior Consultant


Thomson Reuters

O +44 (0)20 7542 2402X 52402
M 07990562402

david.salter@thomsonreuters.com
thomsonreuters.com <http://thomsonreuters.com/> 

 

________________________________
Show quoted textHide quoted text
From: Doepfer_a100@yahoogroups.com [mailto:Doepfer_a100@yahoogroups.com]
On Behalf Of hardware@doepfer.de
Sent: 20 May 2008 11:47
To: Doepfer_a100@yahoogroups.com
Subject: AW: [Doepfer_a100] Re: blew up headphones? + lfo 1 vs 2



> hiii, that would be great, thanks!

We have added the timing capacitor positions of these modules:

A-140
A-141
A-142
A-145
A-146
A-147

www(dot)doepfer(dot)com > PRODUCTS > A-100 > DIY page > Timing
capacitors

Best wishes
Dieter Doepfer


 


This email was sent to you by Thomson Reuters, the global news and information company.
Any views expressed in this message are those of the individual sender, except where the sender specifically states them to be the views of Thomson Reuters.



[Non-text portions of this message have been removed]

AW: [Doepfer_a100] Re: blew up headphones? + lfo 1 vs 2

2008-05-20 by hardware@doepfer.de

> That's great Dieter,
>
> How do different capacitor value affect the range in time, i.e. if I
> replaced 100nF with 1000nF or 10nF what sort of difference would I
> notice?

100nF -> 1000nF = tenfold the time or period
100nF -> 10nF = tenth part of the time or period

> I was thinking that if it's a large difference to make a little pcb and
> have an additional switch to change from standard to new value.
>
> Thanks
>
> David

The capacitor value is proportional to the time or period (e.g. doubling the
capacitor value even doubles the time or period, when the capacitor value is
increased tenfold even the time or period increases tenfold).

Best wishes
Dieter Doepfer

RE: [Doepfer_a100] Re: blew up headphones? + lfo 1 vs 2

2008-05-20 by David Salter

Thank you Dieter
 
Rgds
 
david
 
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* * *
David Salter
Senior Consultant


Thomson Reuters

O +44 (0)20 7542 2402X 52402
M 07990562402

david.salter@thomsonreuters.com
thomsonreuters.com <http://thomsonreuters.com/> 

 

________________________________
Show quoted textHide quoted text
From: Doepfer_a100@yahoogroups.com [mailto:Doepfer_a100@yahoogroups.com]
On Behalf Of hardware@doepfer.de
Sent: 20 May 2008 13:58
To: Doepfer_a100@yahoogroups.com
Subject: AW: [Doepfer_a100] Re: blew up headphones? + lfo 1 vs 2



> That's great Dieter,
>
> How do different capacitor value affect the range in time, i.e. if I
> replaced 100nF with 1000nF or 10nF what sort of difference would I
> notice?

100nF -> 1000nF = tenfold the time or period
100nF -> 10nF = tenth part of the time or period

> I was thinking that if it's a large difference to make a little pcb
and
> have an additional switch to change from standard to new value.
>
> Thanks
>
> David

The capacitor value is proportional to the time or period (e.g. doubling
the
capacitor value even doubles the time or period, when the capacitor
value is
increased tenfold even the time or period increases tenfold).

Best wishes
Dieter Doepfer



 


This email was sent to you by Thomson Reuters, the global news and information company.
Any views expressed in this message are those of the individual sender, except where the sender specifically states them to be the views of Thomson Reuters.



[Non-text portions of this message have been removed]

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