madbeanpedals::forum

Projects => Build Reports => Topic started by: lars on August 22, 2014, 02:23:20 AM

Title: Zero Point Double Delay
Post by: lars on August 22, 2014, 02:23:20 AM
This is one of those PCBs that sat around for a while, and I finally got the time to build it. This is a great "analog" delay. The slapback echo it can do is spot on for vintage tape sound. I did a couple mods to the circuit as per Juansolo's and Madbean's suggestions. Juansolo mentioned that a 50k log taper pot works better for the feedback control, and it does. I also swapped out R3 from 1M to 470k to eliminate the volume boost as per Madbean's suggestion. I went with a semi-gloss finish on this pedal, and I really like the way it turned out. I think I'm going to start using semi-gloss from now on, it's easier to work with. I would recommend this build to anybody that wants a great, simple analog-sound delay (if anybody here hasn't built one of these already).


(https://i.postimg.cc/3JNSZpmy/top.jpg)
(https://i.postimg.cc/MKGKxWjk/insidezp.jpg)
Title: Re: Zero Point Double Delay
Post by: Leevibe on August 22, 2014, 02:42:10 AM
Love it! Cool choice on the knobs.
Title: Re: Zero Point Double Delay
Post by: blearyeyes on August 22, 2014, 02:45:04 AM
Super clean and nice graphics.

Did you finish the entire enclosure or are you talking about using semi-gloss clear coat?
Title: Re: Zero Point Double Delay
Post by: lars on August 22, 2014, 03:04:25 AM
I used semi-gloss white paint, and then finished the whole enclosure in semi-gloss clear over the graphics. I like it because the finish is much thinner, and dries faster. The clear coat dries in 8 minutes!
Title: Re: Zero Point Double Delay
Post by: slimtriggers on August 22, 2014, 03:16:57 AM
That looks great!  How did you cut that center knob down? 
Title: Re: Zero Point Double Delay
Post by: alanp on August 22, 2014, 03:51:38 AM
Oooh, very nice. I think this is the first report I've seen outside of Juan's Space Ritual.

Is the center knob one from Smallbear?
Title: Re: Zero Point Double Delay
Post by: wgc on August 22, 2014, 03:57:20 AM
Great build!  Dualie on my to do list
Title: Re: Zero Point Double Delay
Post by: lincolnic on August 22, 2014, 04:01:57 AM
Love the finish!
Title: Re: Zero Point Double Delay
Post by: lars on August 22, 2014, 04:10:16 AM
I cut down the center knob with a dremel tool, it was just too tall for my taste as per stock. It's one of the standard 1900H's from Tayda. If you bend out the splines on a typical knurled-shaft pot, they'll press right on after the mod.
Title: Re: Zero Point Double Delay
Post by: bcalla on August 22, 2014, 01:19:15 PM
Well done, great looking pedal.
Title: Re: Zero Point Double Delay
Post by: Cloverleaf on August 22, 2014, 02:34:35 PM
Looks absolutely spiffing :) I like what you did to the center-knob!
Title: Re: Zero Point Double Delay
Post by: jkokura on August 22, 2014, 06:31:33 PM
I really like that font. It's easy to read, but still really complex. Nice build.

Jacob
Title: Re: Zero Point Double Delay
Post by: pickdropper on August 22, 2014, 06:47:16 PM
I like the graphic layout a lot.  It works very well and I like how you combined the two colors.
Title: Re: Zero Point Double Delay
Post by: jprizz on August 22, 2014, 07:02:12 PM
Very classy looking pedal. Your color choices look great!
Title: Re: Zero Point Double Delay
Post by: jimilee on August 22, 2014, 08:37:57 PM
That is great, I've had a board for sometime now, need to get on it.
Title: Re: Zero Point Double Delay
Post by: Kinki fuzz on August 22, 2014, 08:38:23 PM
Beautiful work!! Love the sound of mine too
Title: Re: Zero Point Double Delay
Post by: GrindCustoms on August 23, 2014, 10:46:24 PM
Very nice all around, also among my favorites :)
Title: Re: Zero Point Double Delay
Post by: casssax on December 14, 2014, 05:58:36 PM
I can't tell from the pics. Did you leave R31 off? If not what value did you end up using?
The specs say 470k but then say you could try increasing to 680k or 750k ...

I haven't boxed mine up yet and I left R31 off. I think I'll put some sockets on it to test different values.

Title: Re: Zero Point Double Delay
Post by: Hogharry on December 14, 2014, 06:32:30 PM
I've had a board hanging around for quite a while as well. I hope it comes out looking that good.