Author Topic: "Little Angel" - Super Simple PT2399 Mini Chorus  (Read 567759 times)

Govmnt_Lacky

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #540 on: March 08, 2011, 07:56:01 AM »
I don't have a whole lot of depth or usable speed. I have tried 2 of my 3 PT2339 chips. I think there were some posts about this, now to find them.

I built mine with 100K pots in BOTH positions and I am in agreement with you. When I first fired it up, I was kinda disappointed. It did not have much Depth at all and the Speed was something to be desired. Then I talked to another forumite and he told me that this is a fantastic Chorus to use for playing single note phrases or leads... HE was right! This is not going to sound like a CE-2 or Small Clone if that is what you are looking for. But it really fattens up and puts a great "voicing" on single note playing!  ;D

bluesman1218

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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #541 on: March 08, 2011, 08:27:34 AM »
Man, don't give up on vero! I am so fond of it...the quickest way to build for me...Glad you made it with the LA.


I have plenty of boards and I'll likely use them. In all honesty, part of the problem was the iron I was using. Pulled an old one out and much better results. This was also my first time with vero. I'll build a few simpler circuits and get the hang of it. It just seems a bit limiting on layout when trying to keep a small footprint.

bluesman1218

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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #542 on: March 08, 2011, 08:30:57 AM »
I don't have a whole lot of depth or usable speed. I have tried 2 of my 3 PT2339 chips. I think there were some posts about this, now to find them.

I built mine with 100K pots in BOTH positions and I am in agreement with you. When I first fired it up, I was kinda disappointed. It did not have much Depth at all and the Speed was something to be desired. Then I talked to another forumite and he told me that this is a fantastic Chorus to use for playing single note phrases or leads... HE was right! This is not going to sound like a CE-2 or Small Clone if that is what you are looking for. But it really fattens up and puts a great "voicing" on single note playing!  ;D

I'm just using it to thicken my sound on my solo acoustic rig and from the clips I've heard, it's exactly what I'm looking for. In all fairness, I think my speed pot may be audio taper (had it in inventory) and that may be the problem. I'm ordering parts for inventory and I'll check that first.

BoxOfSnoo

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #543 on: March 08, 2011, 11:23:09 AM »
Never mind my last post....user error.  I will toss in however that I give a thumbs down to the Delay mod.  Unless you do not have a delay pedal and want some slapback.  Otherwise, if you want a Chorus pedal stick to the basic layout.

I'd say definitely otherwise, it's definitely not a delay replacement!  Just give it a tiny bit of delay and it widens the sound considerably.  I put a 5k pot in and that's loads of delay for this purpose - I  usually have it only cracked open about 20% or so.

Renegadrian

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #544 on: March 08, 2011, 12:01:26 PM »
It just seems a bit limiting on layout when trying to keep a small footprint.

Really?! Let me firmly disagree on this one...my layouts prove it.

bluesman1218

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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #545 on: March 08, 2011, 12:34:23 PM »
It just seems a bit limiting on layout when trying to keep a small footprint.

Really?! Let me firmly disagree on this one...my layouts prove it.

I'm definitely open. Do you have some layout samples you'd be willing to share. Admittedly, layout is a weak spot for me.

Renegadrian

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #546 on: March 08, 2011, 02:35:44 PM »
Steve, just check my directory in the gallery!  :icon_wink:

bluesman1218

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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #547 on: March 08, 2011, 02:47:31 PM »
Steve, just check my directory in the gallery!  :icon_wink:

Got it, Adriano! Still learning my way around here. Gracie!

bluesman1218

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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #548 on: March 09, 2011, 05:33:40 PM »
IT"S.... A.... LIIIIIIVE!! Rick had me check R7, and it was way off (used my good DMM this time). Replaced it and my voltages were in line, but still no chorus. As a last resort, I cleaned/touched up all my solder joints and now it works! I still want to get more effect at 12 o'clock with both pots, but I'm so pysched that I have chorus.

Think I'll invest in a better soldering station. Circuit Specialists has a real nice one for $30. Thanks to Rick, Pigyboy, Government Lackey, and Chris for all your help.

frequencycentral

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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #549 on: March 09, 2011, 05:45:11 PM »
IT"S.... A.... LIIIIIIVE!! Rick had me check R7, and it was way off (used my good DMM this time). Replaced it and my voltages were in line, but still no chorus. As a last resort, I cleaned/touched up all my solder joints and now it works! I still want to get more effect at 12 o'clock with both pots, but I'm so pysched that I have chorus.

Think I'll invest in a better soldering station. Circuit Specialists has a real nice one for $30. Thanks to Rick, Pigyboy, Government Lackey, and Chris for all your help.

 :icon_biggrin:  :-*

Pigyboy

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #550 on: March 09, 2011, 06:43:46 PM »
IT"S.... A.... LIIIIIIVE!! Rick had me check R7, and it was way off (used my good DMM this time). Replaced it and my voltages were in line, but still no chorus. As a last resort, I cleaned/touched up all my solder joints and now it works! I still want to get more effect at 12 o'clock with both pots, but I'm so pysched that I have chorus.

Think I'll invest in a better soldering station. Circuit Specialists has a real nice one for $30. Thanks to Rick, Pigyboy, Government Lackey, and Chris for all your help.
WooHoo!
Hats off to Mr. Holt!
« Last Edit: March 09, 2011, 06:45:24 PM by Pigyboy »

GodSaveMetal

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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #551 on: March 15, 2011, 05:17:18 PM »
Here's mine:

The L7805 it's too big I change it by the 78L05 tiny one!!
There is a detail of the pot PCB:

I made this in all of my pedals!!!!!

LaceSensor

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #552 on: March 16, 2011, 05:06:23 PM »
I just built one of these on vero and I have it hooked up without a footswitch and I get sound through, only issue is its just my clean sound.

Any ideas on what to do next? I am newbie to troubleshooting and Im not sure how to measure the voltages across the ICs :(

Thanks for your help and patience...

frequencycentral

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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #553 on: March 16, 2011, 06:58:54 PM »
I am newbie to troubleshooting and Im not sure how to measure the voltages across the ICs :(

Got a DMM (multimeter)? Hook up the black probe to ground, then use the red probe to check the voltage of each pin of both chips.

This thread is your best friend: http://www.diystompboxes.com/smfforum/index.php?topic=29816.0
« Last Edit: March 16, 2011, 07:03:31 PM by frequencycentral »

LaceSensor

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #554 on: March 16, 2011, 07:16:44 PM »
Hi

I got 0 when I tried that so figured Id done something wrong :S

Sorry for the newbness and thanks for your reply.


LaceSensor

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #555 on: March 16, 2011, 07:52:11 PM »
I think Im just gonna rebuild this from scratch.
I cant figure out what I did wrong, and I have made other pedals successfully  :icon_redface:

GodSaveMetal

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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #556 on: March 16, 2011, 08:10:44 PM »
I have a problem with the PT2399 it sens probably sensitive to statics; some of the IC's I tried do not make the effect; and others make the effect in some level; some high and others a bit low!!!!! I've lucky with the first it's loud; and I prove a second one no effect; others less or more effect!!!!! that would be happends!!!! do anybody have this problems????

ronnie

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #557 on: March 17, 2011, 09:45:12 AM »
In Perú there are no standar cases for FX you must make yours!!!!! I make the cases for tree dimencions: 10x12x5 cm; 8x12x5cm and 15x12x5cm These are the standar for me!!!!! when I finaly made the pedal I post the interior and the made of these mod for your pleasure!!!!! OK I forgot to put the value of this pot an here is the new layout; please a look ofr another error!!! tnaks a lot!:

I may be wrong, but I see no sense in those long traces leading to Speed pot. And not only them. But well, I'm not an expert, and I didn't create a single layout myself. Just wanted to share thoughts.

Hi, is there a pcb for this layout with all the pots, I'd like to make this version,
I hope their is one, thanks for any help with this

GodSaveMetal

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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #558 on: March 17, 2011, 09:58:32 AM »
Yep I'm the author of that layout here.s the PCB:

Just read the tread for further modifications!!!!

ronnie

Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #559 on: March 17, 2011, 10:13:56 AM »
Awesome man, thank you so much, did you build it yet with your pcb
Does everything work Ok