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DIYstompboxes.com  |  DIY Stompboxes  |  Building your own stompbox  |  "Little Angel" - Super Simple PT2399 Mini Chorus 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: "Little Angel" - Super Simple PT2399 Mini Chorus  (Read 254505 times)
Govmnt_Lacky
Posts: 4458


I'M ONLY GETTING CLEAN OUTPUT!!!!


Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #540 on: March 08, 2011, 06:56:01 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!  Grin
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bluesman1218
Posts: 200


All generalizations are false.


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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #541 on: March 08, 2011, 07:27:34 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.
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It's all about the tone!
Steve

POPA - Plain Old Power Attenuator AVAILABLE for PURCHASE soon!
Silvertone 1482 rebuilt - switchable Tweed, tube reverb, Baxandall + / Little Angel Chorus build, tons of Modded pedals
bluesman1218
Posts: 200


All generalizations are false.


WWW
Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #542 on: March 08, 2011, 07:30:57 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!  Grin

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.
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It's all about the tone!
Steve

POPA - Plain Old Power Attenuator AVAILABLE for PURCHASE soon!
Silvertone 1482 rebuilt - switchable Tweed, tube reverb, Baxandall + / Little Angel Chorus build, tons of Modded pedals
BoxOfSnoo
Posts: 167

Jonathan M. Halifax NS


Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #543 on: March 08, 2011, 10:23:09 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.
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Renegadrian
Posts: 2301


Adriano - Rome Italy


Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #544 on: March 08, 2011, 11:01:26 AM »

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.
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bluesman1218
Posts: 200


All generalizations are false.


WWW
Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #545 on: March 08, 2011, 11:34:23 AM »

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.
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It's all about the tone!
Steve

POPA - Plain Old Power Attenuator AVAILABLE for PURCHASE soon!
Silvertone 1482 rebuilt - switchable Tweed, tube reverb, Baxandall + / Little Angel Chorus build, tons of Modded pedals
Renegadrian
Posts: 2301


Adriano - Rome Italy


Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #546 on: March 08, 2011, 01:35:44 PM »

Steve, just check my directory in the gallery!  icon_wink
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bluesman1218
Posts: 200


All generalizations are false.


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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #547 on: March 08, 2011, 01:47:31 PM »

Steve, just check my directory in the gallery!  icon_wink

Got it, Adriano! Still learning my way around here. Gracie!
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It's all about the tone!
Steve

POPA - Plain Old Power Attenuator AVAILABLE for PURCHASE soon!
Silvertone 1482 rebuilt - switchable Tweed, tube reverb, Baxandall + / Little Angel Chorus build, tons of Modded pedals
bluesman1218
Posts: 200


All generalizations are false.


WWW
Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #548 on: March 09, 2011, 04:33:40 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.
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It's all about the tone!
Steve

POPA - Plain Old Power Attenuator AVAILABLE for PURCHASE soon!
Silvertone 1482 rebuilt - switchable Tweed, tube reverb, Baxandall + / Little Angel Chorus build, tons of Modded pedals
frequencycentral
Posts: 4891


Kicking the sh!t of of your speakers since 2008


WWW
Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #549 on: March 09, 2011, 04:45:11 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  Kiss
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Pigyboy
Posts: 667


Christopher J


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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #550 on: March 09, 2011, 05:43:46 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, 05:45:24 PM by Pigyboy » Logged

And you'll have to admit, I'll be rich as sh*t
I'll just sit and grin, the money will roll right in....
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GodSaveMetal
Posts: 234

Roberto Barrios Thays Lima -Perú


Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #551 on: March 15, 2011, 03:17:18 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!!!!!
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LaceSensor
Posts: 353


Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #552 on: March 16, 2011, 03:06:23 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 Sad

Thanks for your help and patience...
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frequencycentral
Posts: 4891


Kicking the sh!t of of your speakers since 2008


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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #553 on: March 16, 2011, 04:58:54 PM »

I am newbie to troubleshooting and Im not sure how to measure the voltages across the ICs Sad

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, 05:03:31 PM by frequencycentral » Logged

LaceSensor
Posts: 353


Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #554 on: March 16, 2011, 05:16:44 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.

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LaceSensor
Posts: 353


Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #555 on: March 16, 2011, 05:52:11 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
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GodSaveMetal
Posts: 234

Roberto Barrios Thays Lima -Perú


Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #556 on: March 16, 2011, 06:10:44 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?Huh
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ronnie
Posts: 60


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Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #557 on: March 17, 2011, 07:45:12 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
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GodSaveMetal
Posts: 234

Roberto Barrios Thays Lima -Perú


Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #558 on: March 17, 2011, 07:58:32 AM »

Yep I'm the author of that layout here.s the PCB:

Just read the tread for further modifications!!!!
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ronnie
Posts: 60


WWW
Re: "Little Angel" - Super Simple PT2399 Mini Chorus
« Reply #559 on: March 17, 2011, 08:13:56 AM »

Awesome man, thank you so much, did you build it yet with your pcb
Does everything work Ok
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