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Projects => Build Reports => Topic started by: juansolo on April 05, 2013, 12:17:03 PM

Title: ZPM and buffered Apis
Post by: juansolo on April 05, 2013, 12:17:03 PM
Zero

This is a peach of a delay. Really excellent sounding. Looking forward to building it's bigger brothers now.

Only had one issue with it. I was getting clock noise from the LFO through the jacks directly underneath. Some metal tape between insulation tape and grounded to the case soon reduced that. It hasn't got rid of it completely, but it's barely audiable now.

(http://juansolo.demon.co.uk/stompage/images/zpm-o.jpg)

(http://juansolo.demon.co.uk/stompage/images/zpm-i.jpg)

Mini Klone

For some perverse reason I decided that my Small Klone wasn't small enough. So decided to replace it with a buffered Apis... Yeah, I won't be doing that again. Still works perfectly and the guts don't do any justice to what a PITA is was to box up.

(http://juansolo.demon.co.uk/stompage/images/apis3-o.jpg)

(http://juansolo.demon.co.uk/stompage/images/apis3-i.jpg)

Title: Re: ZPM and buffered Apis
Post by: alanp on April 05, 2013, 12:27:17 PM
For some perverse reason I decided that my Small Klone wasn't small enough. So decided to replace it with a buffered Apis... Yeah, I won't be doing that again. Still works perfectly and the guts don't do any justice to what a PITA is was to box up.

It doesn't show -- you make this look effortless! Eternally clean and tidy with good looks...
Title: Re: ZPM and buffered Apis
Post by: juansolo on April 05, 2013, 12:32:09 PM
I was saying that today when I'd done the Zero. I looked at it before I dropped the board in (jacks/power/stomp/LED all in and wired) and there didn't appear to be anything in there... It feels good as that's the idea. But it doesn't 'look' that difficult... I also don't do myself any favours by making the pots board mounted wherever I can :)
Title: Re: ZPM and buffered Apis
Post by: midwayfair on April 05, 2013, 12:59:06 PM
I'd just like to point out that your buffered Apis looks OMG CLEAN compared to my hack job.

>:(

Great idea on the ZPM's shieding. I'll keep it in mind if I can ever get mine into a box. :)

(Awesome graphic on the ZPM, by the way.)

Title: Re: ZPM and buffered Apis
Post by: jubal81 on April 05, 2013, 01:45:37 PM
Beautiful work. Some masterful epoxy work, too - thin, even and perfect.
Title: Re: ZPM and buffered Apis
Post by: nzCdog on April 05, 2013, 02:01:55 PM
Nice work!
Quote
Yeah, I won't be doing that again.
Hehe... I can relate, those tight builds have traumatised me
Title: Re: ZPM and buffered Apis
Post by: juansolo on April 05, 2013, 02:49:09 PM
Beautiful work. Some masterful epoxy work, too - thin, even and perfect.

Ah the mini's are old school primer, paint and lacquer. We can't get the Envirotex thin enough to get the 9mm pot threads through sadly :(
Title: Re: ZPM and buffered Apis
Post by: Stomptown on April 05, 2013, 05:18:46 PM
Both look great! I'll bet that Apis was a major headache but it looks really clean inside IMO. Great graphic choice as well; especially the Apis!  ;D   I need one of those Apis boards. Does anyone know if there are any left?
Title: Re: ZPM and buffered Apis
Post by: midwayfair on April 05, 2013, 05:42:10 PM
Both look great! I'll bet that Apis was a major headache but it looks really clean inside IMO. Great graphic choice as well; especially the Apis!  ;D   I need one of those Apis boards. Does anyone know if there are any left?

I'm pretty sure Jimmy has plenty left ... he told me he thought he ordered enough to last a lifetime.
https://sites.google.com/a/beejivepedals.com/beejive/home/projects/apis
Title: Re: ZPM and buffered Apis
Post by: jprizz on April 05, 2013, 05:45:47 PM
I'll just second everything everyone else said... Wow!
Title: Re: ZPM and buffered Apis
Post by: jimmybjj on April 05, 2013, 06:56:12 PM

Really great builds! Really nice how you made the apis buffered, looks stock, incredible.

Both look great! I'll bet that Apis was a major headache but it looks really clean inside IMO. Great graphic choice as well; especially the Apis!  ;D   I need one of those Apis boards. Does anyone know if there are any left?

I'm pretty sure Jimmy has plenty left ... he told me he thought he ordered enough to last a lifetime.
https://sites.google.com/a/beejivepedals.com/beejive/home/projects/apis

I have a small supply :)
Title: Re: ZPM and buffered Apis
Post by: danwelsh on April 05, 2013, 10:13:10 PM
You refer to metal tape between insulation tape to reduce clock noise on the ZPM.....i dont follow? I built one and it has clock noise that i would love to reduce.
Title: Re: ZPM and buffered Apis
Post by: juansolo on April 06, 2013, 02:20:05 AM
The board sits on top of the two jacks. We were getting ticking from the LFO which is directly above those, even bypassed.

(http://juansolo.demon.co.uk/stompage/images/mini3.jpg)

So we covered that area with insulation tape, then put a layer of metal tape (used for shielding and the like) on top of that that stuck to the sides of the enclosure so it was grounded (you could also just put a wire from it to ground). Then we covered that with another layer of insulation tape, thus enclosing the metal tape so it doesn't short against anything.

The board then sat on top and the clicks are now barely there. I reckon if I'd rotated the jacks, putting the signal wiring as far away as possible from the board, that would have got rid of it completely. But that would be a full strip down job to do that.
Title: Re: ZPM and buffered Apis
Post by: Rip57 on April 07, 2013, 11:58:45 AM
[quote author=juansolo link=topic=9198.msg80479#msg80479 date=1365236405
So we covered that area with insulation tape, then put a layer of metal tape (used for shielding and the like) on top of that that stuck to the sides of the enclosure so it was grounded (you could also just put a wire from it to ground). Then we covered that with another layer of insulation tape, thus enclosing the metal tape so it doesn't short against anything.
[/quote]

Brilliant! And beautiful artwork as well.
Title: Re: ZPM and buffered Apis
Post by: gingataff on April 07, 2013, 07:24:36 PM
Nice work and good call on the shielded jacks!

I had the same problem on my ZPM, so I just cut a piece of 0.5mm aluminium sheet, drilled a small hole for a ground wire, taped it up and slid it between the board and jacks.
It makes everything a bit of a squeeze but the clock noise seems to be gone, even with very high gain.

I like this pedal a lot more now.
Title: Re: ZPM and buffered Apis
Post by: njkke on April 08, 2013, 01:00:29 PM
You know what? I started building 1590A after seeing your beautiful works...
You're my 1590A guru!  ;)
Title: Re: ZPM and buffered Apis
Post by: juansolo on April 14, 2013, 12:28:07 PM
Cured it completely by doing as suggested above. A very thin piece of ali between the board and the jacks connected to ground (and covered in insulation tape so as not to short on the bottom of the PCB). No clock noise at all now.