want slowly raise the DC on a standard PSU design. cosmetic reason :)

[mjrippe]

John, you are right of course about the square wave.  Again, I only think it is worthy of a micro if including the stutter effect and using it in an art project or non-audio setting.  Otherwise your methods are perfectly suited.

 

[andre tchmil]

hey Guys , thanks for keeping this thread alive 8)

 

[bruce0]

At the risk of stating the obvious, why drive an LED inside an audio product with a square wave??

A slow fade can be accomplished (quietly) with a big ass cap, or small cap and impedance multiplier (this the third and last time I will suggest this).

Amuse yourselves.

JR

You perhaps missed it... Andre wants to flicker and fade.... not just fade.  I guess it has something to do with Burning out or fading away. :

 

[JohnRoberts]

At the risk of stating the obvious, why drive an LED inside an audio product with a square wave??

A slow fade can be accomplished (quietly) with a big ass cap, or small cap and impedance multiplier (this the third and last time I will suggest this).

Amuse yourselves.

JR

You perhaps missed it... Andre wants to flicker and fade.... not just fade.  I guess it has something to do with Burning out or fading away. :

No I did not miss it...

Like i said amuse yourselves, this does not amuse me...

JR

 

[andre tchmil]

At the risk of stating the obvious, why drive an LED inside an audio product with a square wave??

A slow fade can be accomplished (quietly) with a big ass cap, or small cap and impedance multiplier (this the third and last time I will suggest this).

Amuse yourselves.

JR

You perhaps missed it... Andre wants to flicker and fade.... not just fade.  I guess it has something to do with Burning out or fading away. :

No I did not miss it...

Like i said amuse yourselves, this does not amuse me...

JR

Hey John, I love your replies .
Respect !

 

[andre tchmil]

At the risk of stating the obvious, why drive an LED inside an audio product with a square wave??

A slow fade can be accomplished (quietly) with a big ass cap, or small cap and impedance multiplier (this the third and last time I will suggest this).

Amuse yourselves.

JR

You perhaps missed it... Andre wants to flicker and fade.... not just fade.  I guess it has something to do with Burning out or fading away. :

Yes please

 

[PRR]

> bad contact/ stuttering effect before the led fully glows ?

Under-volted incandescent with a loose socket?

Analog stutter is always better than digital stutter.

 

[andre tchmil]

> bad contact/ stuttering effect before the led fully glows ?

Under-volted incandescent with a loose socket?

Analog stutter is always better than digital stutter.

ooooooow , how I love this forum after all these years