Author Topic: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO  (Read 322874 times)

Joecool85

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #500 on: February 07, 2011, 08:56:18 AM »
This may have been answered earlier and I missed it, but why a 3mm LED for the rate indicator as opposed to 5mm?  Is it due to ma draw?  If so, wouldn't a low ma 5mm be just fine?  Mouser has them down to 1ma.

Still no answer on this?
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Perrow

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #501 on: February 07, 2011, 09:23:37 AM »
I think that previously it was used to reduce ticking (probably due to less ma's). Don't know if you're safe to use higher ma leds with the latest mod.
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Joecool85

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #502 on: February 07, 2011, 12:31:21 PM »
I think that previously it was used to reduce ticking (probably due to less ma's). Don't know if you're safe to use higher ma leds with the latest mod.

But most 3mm LEDs I have seen draw the same 20ma as a standard 5mm.  I'm not interested in drawing more ma, actually less.  I want to use low ma 5mm LEDs like this:  Red Led

10 mcd 5mm RED Led with only 1ma draw at 1.6volts.  That would be bright enough for the indicator I'd imagine right?

**edit**
Ok, that last one requires 2,800 orders and it's not currently in stock lol.

How about this for the LDR part: 5mm Red LED 14 deg viewing angle 70mcd 10ma

And this one for the indicator: 5mm Red LED 30 deg viewing angle 10mcd 10ma
« Last Edit: February 07, 2011, 12:56:47 PM by Joecool85 »
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deadastronaut

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #503 on: February 07, 2011, 12:59:27 PM »
joe: yep that should be ok...1.6v anyway..

i used the 3mm....the 5mm took away too much...it lost a bit of depth...breadboard it you'll see/hear what i meant. :icon_wink:


edit:

hmmmm dunno on them...
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deadastronaut

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #504 on: February 09, 2011, 08:09:27 AM »


This is my version of the "final" design. Unverified as always :)

@pelle.

in/out should be on one side top of the ldr...

depth pot (3)to the other side..(2)  ground..

also led (d1)is wrong way round. :icon_wink:

and you are missing the ldr led...

also add another ground pad to go to jack ground...(or it wont work..)

on off led needs a ground pad too....and another pad for switch..

470 should be connecting pins7-8 too.... :icon_wink:

« Last Edit: February 09, 2011, 08:32:49 AM by deadastronaut »
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Perrow

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #505 on: February 09, 2011, 09:41:57 AM »
@pelle.

in/out should be on one side top of the ldr...

depth pot (3)to the other side..(2)  ground..

also led (d1)is wrong way round. :icon_wink:

and you are missing the ldr led...

also add another ground pad to go to jack ground...(or it wont work..)

on off led needs a ground pad too....and another pad for switch..

470 should be connecting pins7-8 too.... :icon_wink:

In/out, yes that should be on one side of the ldr.

Depth 3 should be on the other side.

D1, doh

Missing the ldr led? If that's not D1 I don't know what D1 is :icon_wink:

Connect jack ground off depth pot.

470R (or R1) is connecting pin 7-8  >:(  ;D

Anyway, here's an updated (and yes you get to search this thread to know which pins to connect on the rate pot :) )

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deadastronaut

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #506 on: February 09, 2011, 09:52:45 AM »
 :icon_mrgreen:...

i meant ldr led..and rate led!!!!.. :icon_wink:

oh yeah i see the 470 now!.. :icon_mrgreen:

edit:....i see it now ha ha...one of those days man.. :icon_redface:
« Last Edit: February 09, 2011, 10:10:56 AM by deadastronaut »
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Perrow

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #507 on: February 09, 2011, 10:13:57 AM »
:icon_mrgreen:...

i meant ldr led..and rate led!!!!.. :icon_wink:

oh yeah i see the 470 now!.. :icon_mrgreen:

edit:....i see it now ha ha...one of those days man.. :icon_redface:

Your edit showed up when I was replying, so you just managed to escape the sarcasm this time  ;)
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deadastronaut

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #508 on: February 09, 2011, 10:22:38 AM »
 :icon_mrgreen:

ive got a massive hangover today...so be nice... :icon_wink:
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Perrow

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #509 on: February 09, 2011, 10:36:51 AM »
:icon_mrgreen:

ive got a massive hangover today...so be nice... :icon_wink:

I could go into the "it's your own fault you feel like that" charade, but I guess you'll never learn  ;D

So I'll just ask, was last night worth today?
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deadastronaut

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #510 on: February 09, 2011, 10:57:29 AM »
yes!...it was great at the time....theres always a payback though eh... :icon_rolleyes:

i never learn...every week... :icon_wink:
« Last Edit: February 09, 2011, 11:01:23 AM by deadastronaut »
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Der Groovemeister

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #511 on: February 12, 2011, 12:16:22 PM »
Built it from the vero layout. First it blinked somewhat irregular: first normal, then all of a sudden really quick and then not at all! Then I put 1K resistors in series with the leds and now it blinks regularly. It does tick a little... that's a shame.
"What do you mean, dynamics? I'm already playing as loud as i can!"

deadastronaut

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #512 on: February 12, 2011, 03:40:10 PM »
@savaas. did you use a cmos 555?...
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Der Groovemeister

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #513 on: February 12, 2011, 07:32:37 PM »
Yes it's a cmos: TS555CN. What's also weird is that if i connect the battery it doesn't blink. I have to touch ground once (which i have separated from signal ground, unlike the vero) and then it starts blinking correctly. What the f...? When i disconnect the battery and connect it again it works ok. Only when it's been off for a longer time.  ??? I have also tried another chip, but same issue.
"What do you mean, dynamics? I'm already playing as loud as i can!"

deadastronaut

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #514 on: February 13, 2011, 06:34:58 AM »
just tried it on breadboard...perfectly fine..

no need for seperate grounds etc...using ts555cn .no ticking at all........

with my gain and volume full on my mixer.... ::)

btw i have an in jack and out jack permanently fixed to my breadboard all grounds connected on same rail......if the guitar jack in/outs are not plugged in it wont work.....

edit: i see what you mean about it not starting after removing power after a while...i connected pins 4 and 5 with a jumper on the ts555cn and it sorted that out ok...

seems the ts555 behaves slightly differently to the standard cmos555...


this can behave differently according to leds used also.....i'm using 5mm high bright for ldr/led..

and 3mm yellow for rate...

ok heres what it has to be when using the ts555cn ok...notice the pin4-5 connection. if this is not connected it will take about 20 seconds to flash...

here ya go.



heres the vero for the ts555cn version ok.




i have updated my gallery to include this and deleted all other versions ok........done!. :icon_wink:
« Last Edit: February 13, 2011, 10:20:56 AM by deadastronaut »
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MetalUpYerEye

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #515 on: February 13, 2011, 03:01:28 PM »
I was having the same starting problem with my TLC555 cmos... I'll have to connect pins 4, 5 see if that sorts it... Rob, what voltage are you feeding the 555 after the resistor? Mine will go at 3.5v but turns back off after 3-5 seconds... 3.75v and it runs for 10-12 seconds... Data sheet says it wants 4.5v minimum but I haven't had a chance to try it at 4.5v...  ::)

deadastronaut

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #516 on: February 13, 2011, 03:13:41 PM »
im getting...1.75v- 2.75...ish after the 2.2k into the 555..its working fine with the pin-4-5 connected...

i read it will work from 2v-18v...


it goes from 1.75-2.75 over a 10 seconds cycle up n down....
« Last Edit: February 13, 2011, 03:19:05 PM by deadastronaut »
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Perrow

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #517 on: February 13, 2011, 04:46:22 PM »
Latest final version ::)

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deadastronaut

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #518 on: February 14, 2011, 04:14:59 AM »
 ::) indeed.... :icon_mrgreen:

its just that ts555cn, is a different kind of beast....but tamed now...hmmmmm.....for now.....hmmmm....@#$%ing better be..arghhhh my head....... :icon_wink:

no really its cool now guys...i had it running all day on my breadboard and it was fine ok.. :icon_cool:
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hackertronix

Re: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
« Reply #519 on: February 14, 2011, 03:58:37 PM »
i will be building one of these soon, and it will probaby be my first stomp box! ;-)

stupid question regarding 555...555 cmoss?! so, is this different than a 555 timer i can pick up at radioshack?

does this circuit simply fluxuate the volume, similar to amp tremolo of the days of 'ole? i hope so! ;-)