k 2496
Just add: I have been working with electronics since 1982. I have learned
that it is really difficult to weight together different peoples
experiences of some device.
This is not only a problem caused by everyone's subjectivity, but also a
technical. Just remember that standard components, capacitors and
resistors, might have a +/- 20% tolerance. Suppose a condensor (whatever)
of one power supply is -20 % and another +20%? Will they both work at -20
centigrade??
We naturesound people run constantly into problems which no one else
bothers much about. We often work "on the limit" of what a product is meant=
for.
Klas.
At 12:22 2005-11-24, you wrote:
>Yes, you are right in a way - Sennheiser made their own power supplies etc=
.
>To make a good power supply is difficult.
>But with new IC's, it is easy to make a lot of shortcuts. Then you can als=
o
>make a cheap power supply, with uncertain reliability.
>However, my old Tascam DA-P1 has such a simplified power supply and it has
>never caused any problems...?
>
>Klas.
>
>
>
>At 04:47 2005-11-23, you wrote:
> > >According to my friend it is more or less by chance all the time if a=
> power
> >
> > >device works or not. He says that all modern IC-circuit for the purpos=
e
> > >have a tendency to drift away in frequency. In his experience only one=
of
> > >them work under all circumstances, stable and pure. In his opinion, th=
e
> > >Rolls is a very conventional and thereby unreliable device. ... if it
> > >works, it works... kind of.
> >
> > >Klas.
> >
> > >Does the phantom power supply he's designed produce less noise? Are
> > >you free to tell us more? Is it portable? What operating voltage?
> >
> > >Rob D.
> >
> >
> >Hi Klas,
> >
> >
> >
> >Isn't what you are getting at is that the Rolls might accidentally coinc=
ide
> >with the correct powering voltages on some microphones?
> >
> >
> >That to be certain that you are providing the correct voltages the
> >manufacturer would be wise to supply the mic with the correct phantom po=
wer
> >unit, just as Neumann has always done?
> >
> >
> >By saying if the Rolls works, it works by chance? and should not be
> >considered unless there is evidence providing it's powering that microph=
one
> >model accurately?
> >
> >
> >
> >
> >Best,
> >
> >
> >Mark
> >
> >
> >[Non-text portions of this message have been removed]
> >
> >
> >
> >
> >"Microphones are not ears,
> >Loudspeakers are not birds,
> >A listening room is not nature."
> >Klas Strandberg
> >Yahoo! Groups Links
> >
> >
> >
> >
>
>Telinga Microphones, Botarbo,
>S-748 96 Tobo, Sweden.
>Phone & fax int + 295 310 01
>email:
>
>
>
>
>
>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Klas Strandberg
>Yahoo! Groups Links
>
>
>
>
Telinga Microphones, Botarbo,
S-748 96 Tobo, Sweden.
Phone & fax int + 295 310 01
email:
=20
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