Doepfer

Florian, or anybody really but I know Florian has done this,
 
I want to build a Roland tuner pedal into my modular - I intend to re
case it, and I want to power if off the modular's PSU rather than keep
taking the panel out and changing batteries.
 
Is there a schematic for a little adapter like Doepfer's 5V adapter that
will convert +12 to +9 volts?
 
Many thanks
 
David
 
David Salter
Senior Consultant
PSG 

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

Hi David

two possibilities:
1.) an adaptor to the powerbus of the A-100

+12V--+-7809--+---o +9v
  in   |   |   |      out
      ===  |  === <-------capacitors are 100n
       |   |   |
gnd---+---+---+---o

2.) or you pick the dc direct from the rectifier at the powersupply:

~+15V--+---+---7809--+--------o +9v
   in   |   |    |    |          out
       === ===c2 | c3===
     C1---  |    |    |
        |   |    |    |
  gnd---+---+----+----+--------o


All the best, Florian


David Salter wrote:

> Florian, or anybody really but I know Florian has done this,
>  
> I want to build a Roland tuner pedal into my modular - I intend to re
> case it, and I want to power if off the modular's PSU rather than keep
> taking the panel out and changing batteries.
>  
> Is there a schematic for a little adapter like Doepfer's 5V adapter that
> will convert +12 to +9 volts?
>  
> Many thanks
>  
> David
>  
> David Salter
> Senior Consultant
> PSG 
> 
> Reuters Messaging: david.salter.reuters.com@reuters.net
> (t) +44 (0)20 7542 2402 | (m) 07990562402 | (f) 52699 
> 
> Get the latest news at Reuters.com <http://www.reuters.com/> 
> 
>  
> 
> 
> This email was sent to you by Reuters, the global news and information company. 
> To find out more about Reuters visit www.about.reuters.com
> 
> Any views expressed in this message are those of the individual sender, 
> except where the sender specifically states them to be the views of Reuters Limited.
> 
> Reuters Limited is part of the Reuters Group of companies, of which Reuters Group PLC is the ultimate parent company.
> Reuters Group PLC - Registered office address: The Reuters Building, South Colonnade, Canary Wharf, London E14 5EP, United Kingdom
> Registered No: 3296375
> Registered in England and Wales
> 
> 
> 
> [Non-text portions of this message have been removed]
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
> 

-- 
Florian Anwander                  |ConSol
Tel.   +49(89)45841-133           |Consulting&Solutions Software GmbH
Fax    +49(89)45841-111           |Franziskanerstr. 38, D-81669 München
email: florian.anwander@consol.de |http://www.consol.de

Thanks Florian,
 
So just to make sense of the ASCII drawing;
 
the positive supply goes to the 7809 with a cap either side between the positive and gnd and the 7809 grounded on one pin?
 
Are the caps anything special i.e. tantalums?
 
Many thanks again
 
David
 
David Salter
Senior Consultant
PSG 

Reuters Messaging: david.salter.reuters.com@reuters.net
(t) +44 (0)20 7542 2402 | (m) 07990562402 | (f) 52699 

Get the latest news at Reuters.com <http://www.reuters.com/> 

 

________________________________

From: Doepfer_a100@yahoogroups.com [mailto:Doepfer_a100@yahoogroups.com] On Behalf Of Florian Anwander
Sent: 10 March 2008 10:35
To: Doepfer_a100@yahoogroups.com
Subject: Re: [Doepfer_a100] 9V adapter?



Hi David

two possibilities:
1.) an adaptor to the powerbus of the A-100

+12V--+-7809--+---o +9v
in | | | out
=== | === <-------capacitors are 100n
| | |
gnd---+---+---+---o

2.) or you pick the dc direct from the rectifier at the powersupply:

~+15V--+---+---7809--+--------o +9v
in | | | | out
=== ===c2 | c3===
C1--- | | |
| | | |
gnd---+---+----+----+--------o

All the best, Florian

David Salter wrote:

> Florian, or anybody really but I know Florian has done this,
> 
> I want to build a Roland tuner pedal into my modular - I intend to re
> case it, and I want to power if off the modular's PSU rather than keep
> taking the panel out and changing batteries.
> 
> Is there a schematic for a little adapter like Doepfer's 5V adapter that
> will convert +12 to +9 volts?
> 
> Many thanks
> 
> David
> 
> David Salter
> Senior Consultant
> PSG 
> 
> Reuters Messaging: david.salter.reuters.com@reuters.net <mailto:david.salter.reuters.com%40reuters.net> 
> (t) +44 (0)20 7542 2402 | (m) 07990562402 | (f) 52699 
> 
> Get the latest news at Reuters.com <http://www.reuters.com/ <http://www.reuters.com/> > 
> 
> 
> 
> 
> This email was sent to you by Reuters, the global news and information company. 
> To find out more about Reuters visit www.about.reuters.com
> 
> Any views expressed in this message are those of the individual sender, 
> except where the sender specifically states them to be the views of Reuters Limited.
> 
> Reuters Limited is part of the Reuters Group of companies, of which Reuters Group PLC is the ultimate parent company.
> Reuters Group PLC - Registered office address: The Reuters Building, South Colonnade, Canary Wharf, London E14 5EP, United Kingdom
> Registered No: 3296375
> Registered in England and Wales
> 
> 
> 
> [Non-text portions of this message have been removed]
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 

-- 
Florian Anwander |ConSol
Tel. +49(89)45841-133 |Consulting&Solutions Software GmbH
Fax +49(89)45841-111 |Franziskanerstr. 38, D-81669 München
email: florian.anwander@consol.de <mailto:florian.anwander%40consol.de>  |http://www.consol.de <http://www.consol.de> 


 


This email was sent to you by Reuters, the global news and information company. 
To find out more about Reuters visit www.about.reuters.com

Any views expressed in this message are those of the individual sender, 
except where the sender specifically states them to be the views of Reuters Limited.

Reuters Limited is part of the Reuters Group of companies, of which Reuters Group PLC is the ultimate parent company.
Reuters Group PLC - Registered office address: The Reuters Building, South Colonnade, Canary Wharf, London E14 5EP, United Kingdom
Registered No: 3296375
Registered in England and Wales



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

Hi David

> the positive supply goes to the 7809 with a cap either side between the positive and gnd and the 7809 grounded on one pin?
yes.

> Are the caps anything special i.e. tantalums?
For the filtering caps - I do not know how they are called in english. 
I'd say: polycarbonat foil capacitors. 35Volt.


Florian

Thanks Florian. Are they polarised caps?
 
Also is there a cap between the 7809 gnd leg and ground or is it wired
direct?
Rgds
 
David
 
David Salter
Senior Consultant
PSG 

Reuters Messaging: david.salter.reuters.com@reuters.net
(t) +44 (0)20 7542 2402 | (m) 07990562402 | (f) 52699 

Get the latest news at Reuters.com <http://www.reuters.com/> 

 

________________________________

From: Doepfer_a100@yahoogroups.com [mailto:Doepfer_a100@yahoogroups.com]
On Behalf Of Florian Anwander
Sent: 10 March 2008 11:06
To: Doepfer_a100@yahoogroups.com
Subject: Re: [Doepfer_a100] 9V adapter?



Hi David

> the positive supply goes to the 7809 with a cap either side between
the positive and gnd and the 7809 grounded on one pin?
yes.

> Are the caps anything special i.e. tantalums?
For the filtering caps - I do not know how they are called in english. 
I'd say: polycarbonat foil capacitors. 35Volt.

Florian


 


This email was sent to you by Reuters, the global news and information company. 
To find out more about Reuters visit www.about.reuters.com

Any views expressed in this message are those of the individual sender, 
except where the sender specifically states them to be the views of Reuters Limited.

Reuters Limited is part of the Reuters Group of companies, of which Reuters Group PLC is the ultimate parent company.
Reuters Group PLC - Registered office address: The Reuters Building, South Colonnade, Canary Wharf, London E14 5EP, United Kingdom
Registered No: 3296375
Registered in England and Wales



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

I'm about to leave for the Frankfurt Musikmesse. So there will be no
answers/comments/responses from me during this week.
If you want to visit us: we exhibit in hall 5.1, booth B66 within the
special exhibition called "Synthesizer-Welt". I'll be at the booth on
Wednesday and Saturday.

Best wishes
Dieter Doepfer

Hi David

> Thanks Florian. Are they polarised caps?
in the first drawing: no
in the second drawing: C1 is a polarised electrolyte cap, c2 and c3 are 
   non polarised

> Also is there a cap between the 7809 gnd leg and ground or is it wired
> direct?
It is wired direct


Florian

Excellent. thanks Florian I'll start shopping.
 
David
 
David Salter
Senior Consultant
PSG 

Reuters Messaging: david.salter.reuters.com@reuters.net
(t) +44 (0)20 7542 2402 | (m) 07990562402 | (f) 52699 

Get the latest news at Reuters.com <http://www.reuters.com/> 

 

________________________________

From: Doepfer_a100@yahoogroups.com [mailto:Doepfer_a100@yahoogroups.com]
On Behalf Of Florian Anwander
Sent: 10 March 2008 11:51
To: Doepfer_a100@yahoogroups.com
Subject: Re: [Doepfer_a100] 9V adapter?



Hi David

> Thanks Florian. Are they polarised caps?
in the first drawing: no
in the second drawing: C1 is a polarised electrolyte cap, c2 and c3 are 
non polarised

> Also is there a cap between the 7809 gnd leg and ground or is it wired
> direct?
It is wired direct

Florian


 


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Any views expressed in this message are those of the individual sender, 
except where the sender specifically states them to be the views of Reuters Limited.

Reuters Limited is part of the Reuters Group of companies, of which Reuters Group PLC is the ultimate parent company.
Reuters Group PLC - Registered office address: The Reuters Building, South Colonnade, Canary Wharf, London E14 5EP, United Kingdom
Registered No: 3296375
Registered in England and Wales



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