Yahoo Groups archive

Doepfer

Index last updated: 2026-04-29 00:15 UTC

Message

Fwd: AW: [Doepfer_a100] A-100MNT -Miniature Power supply (doepfer's answer)

2004-07-14 by Bakis Sirros

--- Dieter Doepfer <hardware@doepfer.de> wrote:
> From: "Dieter Doepfer" <hardware@doepfer.de>
> To: "Bakis Sirros" <synth_freak_2000@yahoo.com>
> Subject: AW: [Doepfer_a100] A-100MNT -Miniature
> Power supply and bus bord
> Date: Wed, 14 Jul 2004 20:27:17 +0200
> 
> > -----Urspr�ngliche Nachricht-----
> > Von: Antonio Grazioli [mailto:autodafe@tin.it]
> > Gesendet: Mittwoch, 14. Juli 2004 16:43
> > An: Doepfer_a100@yahoogroups.com
> > Betreff: [Doepfer_a100] A-100MNT -Miniature Power
> supply and bus bord
> >
> >
> > Hi all,
> >
> >
> >
> > This mini-power supply is 100mA
> >
> > This is just designed for a few moules.
> >
> > Just forgive my ignorance.what could happen if I
> connect more than a few
> > modules (more than 100 mA required)
> >
> > Can I damage something? The modules? The power
> supply? Or nothing (it wuld
> > simply not work???)
> 
> Nothing dramatic will happen. The A-100MNT use
> standard 7812/7912 voltage
> regulators without heat sinks (in contrast to the
> adjustabe voltage
> regulators LM317/337 used in the standard power
> supply).
> 
> There are two possibilities:
> 
> (1) The transformer will not supply sufficient
> voltage resp. current and the
> A-100 supply voltage (+12V and -12V) will go down
> causing unpredictible
> behaviour of the modules connected to the A-100MNT
> (but nothing can be
> damaged).
> 
> (2) The voltage regulators will overheat. As they
> include a thermal shut
> down even in this case the +12V and/or -12V voltage
> will go down.
> 
> Pay attention not to touch the voltage regulators as
> they may be very hot
> and burn your finger.
> 
> Best wishes
> Dieter Doepfer
> 
> 
> 
> 


=====
Bakis Siros
Parallel Worlds / Polariton
Athens-Greece
[Doepfer_a100] group owner
http://www.shimarecords.co.uk
http://www.ward12.com


		
__________________________________
Do you Yahoo!?
New and Improved Yahoo! Mail - Send 10MB messages!
http://promotions.yahoo.com/new_mail

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.