|HOME| |DIY FAQ| |GEO FAQ| |Debugging Page| |Links| |Schematics| |Wiki| |Layouts Gallery| |STORE|
|AMPAGE| |GEOFEX| |AMZ|

Welcome, Guest. Please login or register.
Did you miss your activation email?
September 02, 2014, 08:00:52 AM
965362 Posts in 103088 Topics by 32689 Members
Latest Member: JustALittleSolderBoy
Home Help Login Register
DIYstompboxes.com  |  DIY Stompboxes  |  Building your own stompbox  |  Equinox: Easy PT2399 Reverb 0 Members and 1 Guest are viewing this topic. « previous next »
Pages: 1 ... 3 4 5 6 7 [8] 9 10 11 12 Go Down Print
Author Topic: Equinox: Easy PT2399 Reverb  (Read 58700 times)
merlinb
Posts: 1170


Merlin, Lancashire UK


WWW
Re: Equinox: Easy PT2399 Reverb
« Reply #140 on: February 28, 2012, 12:50:21 PM »

some photos, but still not working though..
Hang on... it looks like you might have C28 backwards. That could be the cause of the hot 7805...
Logged
mr_deadmaxxx
Posts: 150


Don - Phil.


Re: Equinox: Easy PT2399 Reverb
« Reply #141 on: March 01, 2012, 09:01:47 AM »

looks more like photo-resist

yup, photo resist. I used pre-sensitized PCB's.


some photos, but still not working though..
Hang on... it looks like you might have C28 backwards. That could be the cause of the hot 7805...

Holy cow how come I didn't see that?!? icon_eek icon_eek icon_eek
Logged
merlinb
Posts: 1170


Merlin, Lancashire UK


WWW
Re: Equinox: Easy PT2399 Reverb
« Reply #142 on: March 01, 2012, 09:35:29 AM »

Holy cow how come I didn't see that?!? icon_eek icon_eek icon_eek
Basic law of electronics. It doesn't matter how many times you check the board, you always have to check it one more time to find the last error.
Logged
mr_deadmaxxx
Posts: 150


Don - Phil.


Re: Equinox: Easy PT2399 Reverb
« Reply #143 on: March 01, 2012, 09:53:54 AM »

I always look at the solder side.. Grin
Logged
Mark Hammer
Posts: 21967


WWW
Re: Equinox: Easy PT2399 Reverb
« Reply #144 on: March 01, 2012, 10:37:34 AM »

I brought my Equinox (and several tubs full of other pedals) to a jam/rehearsal last night.  It was the first time I'd ever heard it at anything above conversation level.  Sounded great!  Very pleased.
Logged
garcho
Posts: 1121


gary from chicago


Re: Equinox: Easy PT2399 Reverb
« Reply #145 on: March 01, 2012, 09:41:36 PM »

I can't wait to make this one. Definitely with a momentary foot switch:

Quote
Mark Hammer: Note that, since it comes with "tails", one could productively use a momentary stompswitch for the on-board switching.  That would let the user effectively "punch in" for a phrase, then punch out, letting the reverb decay in its own time.

I was thinking of adding a tap tempo mod, what do you think?  Wink
« Last Edit: March 01, 2012, 09:43:07 PM by garcho » Logged

"...and weird on top!"
Mark Hammer
Posts: 21967


WWW
Re: Equinox: Easy PT2399 Reverb
« Reply #146 on: March 02, 2012, 08:23:30 AM »

Not to rain on your parade, but I don't know that tap tempo will have easily discernible effects on a simulated reverb.  After all, the point of reverb is to make the repeats rather indistinguishable from each other.
Logged
merlinb
Posts: 1170


Merlin, Lancashire UK


WWW
Re: Equinox: Easy PT2399 Reverb
« Reply #147 on: March 02, 2012, 10:36:31 AM »

Not to rain on your parade, but I don't know that tap tempo will have easily discernible effects on a simulated reverb.  After all, the point of reverb is to make the repeats rather indistinguishable from each other.
I hope that was dry humour, Mark...
Logged
garcho
Posts: 1121


gary from chicago


Re: Equinox: Easy PT2399 Reverb
« Reply #148 on: March 02, 2012, 12:36:58 PM »

That's my fault for assuming sarcasm can come across on a text forum  icon_redface    Couldn't help but laugh at the idea of tapping in a tempo for reverb i.e. 100,000 bpm
Logged

"...and weird on top!"
Mark Hammer
Posts: 21967


WWW
Re: Equinox: Easy PT2399 Reverb
« Reply #149 on: March 02, 2012, 03:16:05 PM »

Okay, I get it now.  *I* was the one who was out of the loop.  icon_rolleyes
Logged
served
Posts: 348


Re: Equinox: Easy PT2399 Reverb
« Reply #150 on: April 16, 2012, 12:11:01 PM »

How does it work if I would like to use Hall and Pathroom Reverb types?
Would this be the circuit to build?
Logged
John Lyons
Posts: 5742


Basic Audio


WWW
Re: Equinox: Easy PT2399 Reverb
« Reply #151 on: May 22, 2012, 07:47:21 AM »

Fired this up late last night. Sounds great! Now to play with some feedback
and filtering. Thanks Merlin!
Logged

Basic Audio Pedals
www.basicaudio.net/
haveyouseenhim
Posts: 1909


Mike


Re: Equinox: Easy PT2399 Reverb
« Reply #152 on: July 30, 2012, 06:06:43 AM »

Ahhh. this is such a nice sounding pedal, but i cant get mine to work. theres a short somewhere and i cant find it. i just decided to etch a new board and start over. when i was cutting the copper clad board to size, the box cutter i was using slipped onto the speed square and cut the tip of my finger OFF.  this project has been hell (through no fault of the designer) .


sounds great merlin. cant wait to finish it.

edit:  does anyone have any spare pcbs?
Logged

http://www.youtube.com/haveyouseenhim89

I'm sorry sir, we only have the regular ohms.
brv
Posts: 3



Re: Equinox: Easy PT2399 Reverb
« Reply #153 on: November 26, 2012, 12:00:16 PM »

Hello everyone!

I've recently built my copy of Equinox Reverb. Audio processing seems to work fine, except that it's quite noisy (my idea is to put it in one box with Echo Base, which also uses a PT2399 and doesn't produce any noise). The noise stays the same no matter if the reverb is on or off. Moreover I can't really hear the difference between "Low cut" on and off. I'm really out of ideas - after spending a lot of time examining the PCB, I can't find any shorts etc. Help!

Here are the pictures of my build:
http://imageshack.us/a/img197/9584/dsc00587jy.jpg
http://imageshack.us/a/img21/4291/dsc00585ux.jpg

Let me know if you need audio samples or a close up of any part...
« Last Edit: November 27, 2012, 02:09:07 AM by brv » Logged
gtangas
Posts: 33


Re: Equinox: Easy PT2399 Reverb
« Reply #154 on: December 05, 2012, 10:20:19 AM »

hi

sorry about the noob question:

The pot P2 can be lin or log right?

Logged
garcho
Posts: 1121


gary from chicago


Re: Equinox: Easy PT2399 Reverb
« Reply #155 on: December 05, 2012, 11:19:13 AM »

Pots *can* always be one or the other (or antilog), it's just a matter of user-interface aesthetics. You know how some amps' volume knobs go from inaudible to crazy loud in 10 degrees turn? That's the issue with potentiometer taper.
Linear would be the choice here, if you have. Schemes usually make the need for audio, or log (or antilog) explicit (as in P1). Any will work fine, as long as the value (20k) is correct. Even if the value is higher, it will still 'work', but not as gracefully as the designer intended. In this case (with Merlin), I'd stick as close to the schematic as financially possible.

Here's a good quick read you should check out

welcome to the forum!
« Last Edit: December 05, 2012, 11:21:18 AM by garcho » Logged

"...and weird on top!"
gtangas
Posts: 33


Re: Equinox: Easy PT2399 Reverb
« Reply #156 on: December 05, 2012, 05:14:33 PM »

I´ve been following the boom and the doubt of the pot came because the note was only on one off the pots

Here in Portugal I couldn´t find the pt2399… even it´s a ic called PT Smiley   but okay… long live ebay….

The other problem was the caps ND… after running from several shops I only found a polyester cap of 1,5uf but I think it’s okay

Thx for the welcome… I enjoy this stuff… I love play and I love to build my things…. I remember when I was a kid seeing my father drawing pcb with a edding pen Smiley

today´s more simple!!!

But yea! I´m starting from zero here! 100% noob!

Feedback of my first stompbox as soon my ic arrive from hong kong!
   
obrigado
Sérgio
Logged
brv
Posts: 3



Re: Equinox: Easy PT2399 Reverb
« Reply #157 on: December 06, 2012, 12:58:25 AM »

I've noticed a fact that might be important: the noise goes away when I turn down the level pot (what doesn't surprise me, but the same happens when the reverb is bypassed!). I also checked the circuit with PT's removed - of course there is no reverb, but I still can hear some minor noise which might be the cause (the reverb line amplifies it). I also tried to replace the TL072CN - no change. The wires used to connect the circuit to the amp ought to be ok, because I use them with many other stompboxes and never noticed any problems. Anyone willing to help?
Logged
merlinb
Posts: 1170


Merlin, Lancashire UK


WWW
Re: Equinox: Easy PT2399 Reverb
« Reply #158 on: December 06, 2012, 02:18:36 PM »

I've noticed a fact that might be important: the noise goes away when I turn down the level pot
What kind of noise is it?
Logged
brv
Posts: 3



Re: Equinox: Easy PT2399 Reverb
« Reply #159 on: December 08, 2012, 11:46:43 AM »

It will be easier if I make a sample. Here's the link:
https://soundcloud.com/brv-2/reverb-noise

The sample consists of three parts - first one is the amp only (no noise at all), second - low level reverb and the third one - high level reverb. For me it sounds as if something was not grounded properly, but that's only a suggestion. Still the fact the noise almost (not entirely!) disappears when the Level know is down makes me wonder - this seems to be the same noise level (maybe a little higher) as with the PT's removed.
Logged
Pages: 1 ... 3 4 5 6 7 [8] 9 10 11 12 Go Up Print 
« previous next »
Jump to: