Author Topic: "Little Angel" - Super Simple PT2399 Mini Chorus  (Read 567500 times)

frequencycentral

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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #260 on: September 13, 2010, 06:05:30 PM »
does the board have to be grounded to the encloser and do the jacks have to be grounded to each other.

Yes!

BoxOfSnoo

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #261 on: September 14, 2010, 08:33:00 AM »
does the board have to be grounded to the encloser and do the jacks have to be grounded to each other.

Yes!

And furthermore, Yes!

clamup1

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #262 on: September 14, 2010, 01:19:48 PM »
i had really cool star trek sound effects then it quit. i dont think i have this thing wired right. i have it wired like this

http://www.diystompboxes.com/smfforum/index.php?topic=970.0
no led 

clamup1

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #263 on: September 14, 2010, 02:21:57 PM »
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

YouAre

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #264 on: September 22, 2010, 01:01:53 PM »
Did anyone uh....replace the 100r resistor at pin 6 (or whichever is the delay time pin, totally forgot) with an LDR that's controlled by the same LFO or another lfo? Cause that could make for a pretty sweet flanger.....right?

frequencycentral

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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #265 on: September 22, 2010, 02:39:12 PM »
Did anyone uh....replace the 100r resistor at pin 6 (or whichever is the delay time pin, totally forgot) with an LDR that's controlled by the same LFO or another lfo? Cause that could make for a pretty sweet flanger.....right?

Replacing the 100R with a LDR would increase the delay time of the PT2399 to such an extent that it would no longer be a chorus, but a delay with modulation (not a flanger). The whole concept of Little Angel was to keep the delay time to a minimum by using that 100R resistor and modulation pin 2 instead of pin 6.

YouAre

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #266 on: September 22, 2010, 02:55:23 PM »
Did anyone uh....replace the 100r resistor at pin 6 (or whichever is the delay time pin, totally forgot) with an LDR that's controlled by the same LFO or another lfo? Cause that could make for a pretty sweet flanger.....right?

Replacing the 100R with a LDR would increase the delay time of the PT2399 to such an extent that it would no longer be a chorus, but a delay with modulation (not a flanger). The whole concept of Little Angel was to keep the delay time to a minimum by using that 100R resistor and modulation pin 2 instead of pin 6.

I only suggested this for 2 reasons. First being that I'm remembering back to the echo base/other delays with modulation, that modulation is achieved by "wiggling" the delay time pot. Secondly, I just built a small clone, and i noticed that when I played around with the delay time, I either got modulation or flanging (depending on the timing cap). I also noticed that some chorus pedals out there have a "delay time" pot, I figured it might be an interesting addition.

blooze_man

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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #267 on: September 23, 2010, 01:18:53 AM »
I built this yesterday (pictures in the "pictures" forum). It really sounds nice and the PCB layout is good.

andreaps72

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #268 on: September 23, 2010, 07:51:13 AM »
But a Vero layout ?

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #269 on: September 29, 2010, 11:50:01 PM »
Olá para todos , meu nome é daniel, sou brasilieiro .

Acabo de montar o little angel chorus, fiquei surpreso com o resultado, fantastico, achei muito bom.
A unica mudança que fiz foi usar os pots de 100K, o restante dos componentes são o mesmo do esquema original.
Me perdoem por não escrever em inglês  pois não domino o idioma, e  não sou favoravel a o uso de tradutores.
Agora posso tocar Nirvana... rsrsrs....

Abraços a todos e muito obrigado ao pessoal do forum que me abriu uma porta para um pedal complicado de se montar.
Abraços e Felicidades..
Daniel Venticinco ;D

~arph

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #270 on: September 30, 2010, 06:01:44 AM »
 ??? ??? ???

english please

frequencycentral

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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #271 on: September 30, 2010, 07:28:42 AM »
^^^

I think he likes it! He used 100k for both pots. Now he can sound like Nirvana.....obrigado!! ;D

~arph

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #272 on: September 30, 2010, 08:07:36 AM »
Yes that was the same impression I had.. Though I don't typically associate Nirvana with chorus..  ;D

deadastronaut

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #273 on: September 30, 2010, 08:09:33 AM »
fantastico!..... :icon_mrgreen:

markeebee

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #274 on: September 30, 2010, 09:09:05 AM »
That's spooky......here's a post I made earlier this morning......

http://www.diystompboxes.com/smfforum/index.php?topic=87287.msg733482#msg733482

Slade

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #275 on: September 30, 2010, 02:02:02 PM »
Olá para todos , meu nome é daniel, sou brasilieiro .

Acabo de montar o little angel chorus, fiquei surpreso com o resultado, fantastico, achei muito bom.
A unica mudança que fiz foi usar os pots de 100K, o restante dos componentes são o mesmo do esquema original.
Me perdoem por não escrever em inglês  pois não domino o idioma, e  não sou favoravel a o uso de tradutores.
Agora posso tocar Nirvana... rsrsrs....

Abraços a todos e muito obrigado ao pessoal do forum que me abriu uma porta para um pedal complicado de se montar.
Abraços e Felicidades..
Daniel Venticinco ;D

Hi, everyone, my name is Daniel, I'm brazillian.

I just mounted the Little Angel Chorus, I'm surprised about the result, fantastic, I found it's very good.
The only change I made was to use 100k pots, the rest of components are the same as in the original schem.
Sorry for not write in english but I don't dominate the idiom and I don't like using translators.
Now I can play Nirvana... rsrsrs...

Cheers to everyone and many thanks to the forum staff who has opened me a door to a pedal that was complicated to build.
Hugs and congratulations!
Daniel Venticinco ;D


;D

~arph

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #276 on: October 01, 2010, 03:20:36 AM »
 ;D

Well that explains it

Pigyboy

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #277 on: October 01, 2010, 06:10:30 AM »
Slade-All Seeing All Knowing :)

boog

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #278 on: October 01, 2010, 02:20:42 PM »
built it, loved it, but tweeked it: was experimenting with different value pots off of pin 6 to go from chorus to delay and, ummm, hooked up a 24v adaptor instead of the usual.  :icon_redface: poof! so a quick check of everything tells me that the only components i used not rated for that much were the two 10uf in the LFO & the NE5532.  I can't find anything on the 2399. did i nuke that as well? i built this on perfboard and i'd like to think i don't have to redo all that. i replaced the 5532 and it passed signal again, but there's a loud buzz.  i only have one more 2399 so i don't wanna swap that in if there's something else wrong.

Earthscum

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #279 on: October 01, 2010, 02:53:07 PM »
pop out the PT chip and turn the unit on and make sure you are still getting 5V on your regulator. I believe the lower rated regs can only tolerate 15V (don't quote me on that). Your regulator may have saved the PT, dunno... I'd assume I blew the PT if the reg works.