MOTM

This is a good subject. My opinion is that LEDs are pretty, and I like them.
They should perform a legitimate service to be included, however. This is
what I find valuable:

1. LFOs to show frequency
2. EGs to show gate status in a complex patch (very valuable in a larger
system!)
3. Midi/CV output panel for the same reason
4. Sequencer state position and mode status

However, Paul's concerns are legitimate. I'm building 2 step sequencers now
(which I am naming Larry and Moe; Paul's DOMOAS sequencer when it comes out
will be named Curly, nyuk nyuk). These will have 11 LEDs each, and I'm
placing them on separate regulators, and taking some other steps Paul
suggested to make the CV outputs absolutely isolated and clean. This is the
one part of my system where I am going to splurge with LED indicators
because they are most useful here; but I'm gonna pay the piper with a
separate dedicated power supply for the digital stuff.
Dave Bradley
Principal Software Engineer
Engineering Animation, Inc.
daveb@...

> From: "Tkacs, Ken" <Ken.Tkacs@...>
>
> When I first talked to Paul while buying my initial MOTM purchase, I asked
> him why it was that his feature-laden, high quality modules
> consumed minute
> amounts of power (on the order of 20 ma each) while other units (i.e.,
> PAIA's modules) demanded 150-350 ma per module-a HUGE difference
>
> Paul's simple response was, "Because I don't put LEDs all over the place."
>

You are indeed the greatest of the Stooges Dave.  I am not worthy, but I
will probably act like it.  <grin> 
LH

> From: "Dave Bradley" <daveb@...>
> 
> This is a good subject. My opinion is that LEDs are pretty, and I like
them.
> They should perform a legitimate service to be included, however. This is
> what I find valuable:
> 
> 1. LFOs to show frequency
> 2. EGs to show gate status in a complex patch (very valuable in a larger
> system!)
> 3. Midi/CV output panel for the same reason
> 4. Sequencer state position and mode status
> 
> However, Paul's concerns are legitimate. I'm building 2 step sequencers
now
> (which I am naming Larry and Moe; Paul's DOMOAS sequencer when it comes
out
> will be named Curly, nyuk nyuk). These will have 11 LEDs each, and I'm
> placing them on separate regulators, and taking some other steps Paul
> suggested to make the CV outputs absolutely isolated and clean. This is
the

> one part of my system where I am going to splurge with LED indicators
> because they are most useful here; but I'm gonna pay the piper with a
> separate dedicated power supply for the digital stuff.

daveb@... writes:

>>However, Paul's concerns are legitimate. I'm building 2 step sequencers now
 (which I am naming Larry and Moe; Paul's DOMOAS sequencer when it comes out
 will be named Curly, nyuk nyuk). These will have 11 LEDs each, and I'm
 placing them on separate regulators<<

When I was in college I designed and built a 16 bit CPU (130 chips wire 
wrapped so densely it looked like a birds nest) that was packed with LEDs.   
I was going for the look of the minicomputers of the time, with rows of data, 
address and status LEDs.  My memory of electronics is kind of rusty now, but 
I think I strobed them with a 555 timer which reduces the current your device 
will draw.  And by varying the pulse width using a pot, it also acts as a 
dimmer control.

-Elhardt