Doepfer

Dome top on my LFO 1


--- In Doepfer_a100@y..., "jmaddocks1975" 
<jmaddocks1975@y...> wrote:
> yep you're right.
> I just checked my Analogue Systems modules (I only have 3 
VCLFO's 
> though) and they all have flat LEDS's.....interesting.
> Maybe doepfer couldn't source any, afterall Doepfer are 
German and 
> Analogue Systems are English. What about Analogue 
Solutions, I have 
> only 1 filter (MS20) has no LEDS's but do they use flat ones?
> I wonder if American companies use Flat ones.
> 
> 
> John.
> 
> 
> 
> 
> 
> --- In Doepfer_a100@y..., "(i think you can figure that out)" 
> <petergrenader@h...> wrote:
> > Hate to break it to you guys - but the modules on my 
Analogue 
> > Systems gear, all of which is new,  all has flat tops.
> > 
> > Every single dang one of them.
> > 
> > So, it's not because of obsolesence.  But your observation is 
> > correct, not all LEDs are created electrically equal, so saying 
> the 
> > flat tops respond quicker could be due it's electrical 
> > charactoristics as opposed to just a difference in luminance 
> > reflection of the domed lens.  I know from playing around with 
> > some filters that using LEDS in place of signal diodes within 
a 
> > circuit will give different coloring to the sound from one LED 
> type 
> > to another.  Some sound warmer than others.  As silly as this 
> > seems, green ones are particularily warm sounding.  
> > 
> > John Blacet is famous for using leds within his circuits, on 
the 
> > circuit boards themselves.  He does this for sonic reasons 
with 
> > intention of bringing them to the faceplate.
> > 
> > I swear, I'm not making this up!
> > 
> > Peter
> > 
> > 
> > 
> > --- In Doepfer_a100@y..., "Joe Buechler" <buechlerjoe@t...> 
> > wrote:
> > > I recall reading somewhere that all of the A100 modules 
> > originally 
> > > had the flat red LEDs, and the Doepfer converted over 
> > completely to 
> > > the round orange-ish LEDs. I don't think any flat LED 
modules 
> > have 
> > > been produced since then, and it affected all of the 
modules, 
> > so it 
> > > didn't coincide with design mods as far as I know.
> > > 
> > > Its possible, though, that Doepfer has made changes to 
> > various 
> > > modules over time that haven't been reflected in version #s.
> > > 
> > > Maybe in a few years the flat LED modules will be 
considered 
> > a rare 
> > > collectors item ;-)
> > > 
> > > Joe
> > > 
> > > --- In Doepfer_a100@y..., "ethanzer0" <ethanzer0@y...> 
wrote:
> > > > --- In Doepfer_a100@y..., Paul Schulz <dasfonk@w...> 
wrote:
> > > > > No matter which type of LEDs they have, my A-140s are 
all 
> > marked: 
> > > > > "version1, 1995", so Doepfer don´t seem to have 
changed 
> > anything.
> > > > > So your idea of 'second sourcing' makes sense.
> > > > > 
> > > > > Paul
> > > > > 
> > > > > 
> > > > > Tim Stinchcombe wrote:
> > > > > 
> > > > 
> > > > I have 5 A-140s.  3 of which 
> > > > have flat LEDs.  Of the 3 that 
> > > > have flat LEDs, 2 have visably
> > > > different components on the PCB.
> > > > Different transistors, differetly
> > > > marked resistors, etc.  I can 
> > > > understand red versus blue transistors
> > > > as a sourcing issue, however, the banding
> > > > on resistors is supposed to be somewhat 
> > > > of a standard. The differences in these 
> > > > two seems to identical.
> > > > 
> > > > It just so happens that these 2 
> > > > are the 2 I like most.
> > > > 
> > > > Ethan