Print Page - LED for my phase 45?

Title: LED for my phase 45?
Post by: Celery_Strat on January 27, 2011, 11:10:37 AM

Hello again.

I just finished up a phase 45 clone using tonepad's layout. http://www.tonepad.com/getFile.asp?id=70 (http://www.tonepad.com/getFile.asp?id=70)
I put an LED in but I just wired it as a simple on/off indicator. I really dig the pulsating LED of the Pickle vibe, and was wondering if it could be done in this pedal. I like the slow fade that matches the sound as opposed to the simple blinking, but, if blinking is all that's inherently possible, I'll take that too.

Title: Re: LED for my phase 45?
Post by: Govmnt_Lacky on January 27, 2011, 11:57:44 AM

Probe the ICs until you find a leg that is wobbling in voltage at the same rates as the speed knob and tap into that for the LED V+. Then run the V- from the LED to the same point on the stomp switch as your on/off LED.

Dont forget the current limiting resistor!

All done! ;D

EDIT: If you find the correct IC leg to tap, then the slow fade/blinking will depend on the SPEED pot location.

Title: Re: LED for my phase 45?
Post by: oldrocker on January 27, 2011, 07:28:36 PM

Try Justin P.s mod for a rate speed led indicator.

http://www.lynx.bc.ca/~jc/phase45modded.gif

Title: Re: LED for my phase 45?
Post by: Philippe on January 28, 2011, 07:23:43 PM

Aside from your pulsing LED query, isn't the Phase 45 just about one of the nicest phase shifters ever designed? It's got an absolutely beautiful sound...subtle yet well-defined with an inherent & unique character all its own. The speed range of this two-stage phaser covers all of the bases (for me) & it blends in perfectly with a FF and/or OD effect.

The 4+ stagers (as well as many chorus pedals) sound way too contrived...with their somewhat cheesey 70s-early 80s commercial/strip mall-elevator music sound.

Title: Re: LED for my phase 45?
Post by: Celery_Strat on January 28, 2011, 10:09:03 PM

Thanks, guys. And yes, it sounds AWESOME!

Title: Re: LED for my phase 45?
Post by: Sanguinicus on January 29, 2011, 04:13:25 AM

I attempted to build the Tonepad version of the Phase 45... didn't work. wracked my brain for a week and gave up. That was a year ago. I might try it again.

I think matching the FETs was the problem.

Title: Re: LED for my phase 45?
Post by: Celery_Strat on February 01, 2011, 07:51:42 PM

Well, funny you should say that, because mine ain't working either! I read some places that the pinout for the FETs is backwards on the layout, but that info was pretty dated, and I was wondering if it's been corrected since before I go swapping things all around.

Title: Re: LED for my phase 45?
Post by: jlsantamaria on February 26, 2011, 08:25:23 AM

I have the same problem. Fets are matched 2N5259 at VGS about 1,65V and I've used a 5,1V zener. The output sound has lower volume that the bypass sound, no phasing and when I turn the knob up it starts to make a ticking noise :(

Title: Re: LED for my phase 45?
Post by: deadastronaut on February 26, 2011, 08:46:59 AM

build the ggg version...much much better imo.....not so fussy on the trannies too... :icon_wink:

heres a demo of it..i love it..

http://www.youtube.com/user/100roberthenry?feature=mhum#p/u/25/xv_z9fSHpvQ

DIYstompboxes.com

DIY Stompboxes => Building your own stompbox => Topic started by: Celery_Strat on January 27, 2011, 11:10:37 AM