Way Huge - Pork Loin  [traced]

General documentation, gut shot, schematic links, ongoing circuit tracing, deep thoughts ... all about boutique stompboxes.

Re: Way Huge - Pork Loin

Postby gigelmargel » 03 Jul 2014, 21:09

johnk wrote:well, since no one has replied, I just bought another one for analysis. it should be here next week so hopefully I can get to the bottom of what the problem with the posted schematic is.


You're wonderful, John! If you want, after you will trace it, we can try to make a trade :)
gigelmargel
Resistor Ronker
 
Posts: 253
Joined: 16 Jul 2007, 21:57
Has thanked: 14 times
Have thanks: 15 times

Re: Way Huge - Pork Loin

Postby johnk » 10 Jul 2014, 19:22

okay, the original arrived and I found all of the issues with the schematic and IvIark's vero. YAY!!!!
here's a copy of the schematic with all of the correct values and with the 'voice' trimpot removed (just like in the original:

Image

and here's IvIark's corrected and verified vero of it:

Image

For this message the author johnk has received thanks: 10
Blitz Krieg (21 Jul 2014, 11:22), Intripped (10 Jul 2014, 19:28), IvIark (10 Jul 2014, 19:33), jwyse (31 Aug 2014, 19:10), lohstah (11 Jul 2014, 08:26), mirosol (10 Jul 2014, 22:04), Pyr0 (10 Jul 2014, 23:22), tp801 (11 Jul 2014, 19:25), V1nce69 (31 Jul 2017, 07:19), x-tn (15 Jul 2014, 02:41)
johnk
Resistor Ronker
 
Posts: 273
Joined: 05 Apr 2010, 08:33
Has thanked: 31 times
Have thanks: 269 times

Re: Way Huge - Pork Loin

Postby johnk » 11 Jul 2014, 02:56

got my clone all boxed up and it sounds just like my original one. thanks for posting the vero IvIark!

Image

Image
johnk
Resistor Ronker
 
Posts: 273
Joined: 05 Apr 2010, 08:33
Has thanked: 31 times
Have thanks: 269 times

Re: Way Huge - Pork Loin

Postby Intripped » 11 Jul 2014, 13:25

very nice pedal!
...those WHITE LETTERING, pliz explain: how you do it? :secret:
Intripped
Cap Cooler
 
Posts: 480
Joined: 25 Aug 2009, 02:03
Has thanked: 572 times
Have thanks: 213 times

Re: Way Huge - Pork Loin

Postby johnk » 11 Jul 2014, 21:00

Intripped wrote:very nice pedal!
...those WHITE LETTERING, pliz explain: how you do it? :secret:


I used a brother p-touch labeler.

For this message the author johnk has received thanks: 2
bucksears (04 Jul 2018, 13:14), Intripped (11 Jul 2014, 23:19)
johnk
Resistor Ronker
 
Posts: 273
Joined: 05 Apr 2010, 08:33
Has thanked: 31 times
Have thanks: 269 times

Re: Way Huge - Pork Loin

Postby jalmonsalmon » 11 Jul 2014, 23:02

johnk wrote:
Intripped wrote:very nice pedal!
...those WHITE LETTERING, pliz explain: how you do it? :secret:


I used a brother p-touch labeler.

Very nice! Good work!

May I ask what you use for the top coat over the P-Touch Labeler? :secret: I have too many dark colored pedals that need the white fonts! :thumbsup
User avatar
jalmonsalmon
Solder Soldier
 
Posts: 194
Joined: 14 Sep 2012, 23:49
Has thanked: 66 times
Have thanks: 23 times

Re: Way Huge - Pork Loin

Postby johnk » 12 Jul 2014, 08:24

I don't use any top coat. just the labels.
johnk
Resistor Ronker
 
Posts: 273
Joined: 05 Apr 2010, 08:33
Has thanked: 31 times
Have thanks: 269 times

Re: Way Huge - Pork Loin

Postby LaceSensor » 15 Jul 2014, 00:20

That's a legit looking clone

Nice work everyone
LaceSensor
Cap Cooler
 
Posts: 572
Joined: 02 Jan 2011, 13:01
Has thanked: 42 times
Have thanks: 245 times

Re: Way Huge - Pork Loin

Postby GodSaveMetal » 19 Jul 2014, 13:53

early.memoirs wrote:PL has a lower clipping level, much lower gain though.
i find the curve control really muddied up the sound, you have to blend the clean stage in about 1:1 to get it a bit clear.

early.memoirs wrote:Had just finished a double sided layout for 1590B enclosure if anyone interested (a bit cramp). I haven't build it myself. Maybe in a week or two.


havent had a chance to build that board. since it utilizes 9mm pot which actually hard to find here :slap:
so i made a second attempt on my layout. the goal is to fit it in 1590bb, utilizing board mounted pots + toggle switch. lot of jumpers to keep it single-sided. :oops:

here's the composite.
foray-earlymemoirsdecember2011.jpg


report back soon along with the project file. :wink:



Please post alll!!! BOM, PCB layout one sided PCB please!!! thanks I stay tunned!!
GodSaveMetal
Resistor Ronker
 
Posts: 301
Joined: 19 Sep 2009, 17:11
Has thanked: 141 times
Have thanks: 52 times

Re: Way Huge - Pork Loin

Postby jwyse » 31 Aug 2014, 03:23

I just finished* building this using IvIark's vero layout. I had (and am having) some trouble with the 1uF caps. I used big honkin' metal film box caps in 2 places where I could physically fit them. Then I figured out that if I socketed the remaining 1uF box caps, that raised them up enough to clear nearby components, so I could fit the rest that way. And that worked just great, until I tried to close the 1590BB. :cry: There isn't enough clearance with the pots+plastic dust covers+doublesided tape+PCB+socket+bigass box cap. I even removed the doublesided tape (it wasn't sticking to the plastic pot dust covers anyway; anybody got any tips for that??), and the caps still wouldn't fit.

I came back to this thread for johnk's photos, and it looks like those yellow-orange 1uF caps are tantalums (at least they look exactly like the handful of tantalums I have). I've never actually used tantalums before; I just ordered some as soon as I had trouble cramming the box caps in. Do the tantalums work/sound ok here, and if so, can someone help me out with polarity? Whenever I've seen electrolytics in the audio path, they've almost always been oriented with positive on the input side, negative on the output side. Is it that straight-forward?

Am I correct in thinking that all these 1uF caps in the Pork Loin are functioning as coupling capacitors? I just read that tantalums "should be avoided in audio coupling (bipolar) circuits" (AMZ's cap FAQ) -- does this apply here?

Sorry for cramming so many questions into one post. Thanks to anyone who has the patience to read and answer at least some of these.


* sort of finished
jwyse
 
Posts: 3
Joined: 19 Aug 2014, 01:55
Has thanked: 2 times
Have thanks: 0 time

Re: Way Huge - Pork Loin

Postby johnk » 31 Aug 2014, 04:24

I used 1u multilayered (bipolar) ceramics. they are NOT tants.
both tayda and mouser have 'em.

For this message the author johnk has received thanks:
jwyse (31 Aug 2014, 18:08)
johnk
Resistor Ronker
 
Posts: 273
Joined: 05 Apr 2010, 08:33
Has thanked: 31 times
Have thanks: 269 times

Re: Way Huge - Pork Loin

Postby ZombiCrow » 18 Mar 2015, 19:34

Hello! If you were going to put a Send/Return insert point to splice before the Clean section of the Pork Loin (maybe a Swollen Pickle, for example), at what point in that schematic would it be best to patch it in? Ideally I'm looking to use a heavier drive pedal before the Clean preamp section, and still have the overdrive section in parallel. Hope this makes sense, thanks very much to everyone for this thread!
ZombiCrow
 
Posts: 6
Joined: 18 Jul 2010, 20:16
Has thanked: 2 times
Have thanks: 1 time

Re: Way Huge - Pork Loin

Postby fusionid » 15 Jun 2015, 07:33

In an attempt to contribute since I have found great info in this threads.

I recently bought a 2nd pork loin to run a stereo rig (long story). I was surprised that the newer pedal was noticeably brighter. I walked the circuit and found that

Capacitor C34 has been updated to a value of 220 pF

It makes the pedal brighter and is worth the try for those that find the original too dark. Cheers and heads off to tripps for my all time favorite od pedal.

For this message the author fusionid has received thanks: 2
crguti (31 Jul 2015, 12:02), stringsthings (08 Jul 2018, 13:42)
fusionid
 
Posts: 9
Joined: 30 Dec 2007, 10:20
Has thanked: 0 time
Have thanks: 2 times

Re: Way Huge - Pork Loin

Postby gigelmargel » 06 Apr 2016, 20:40

Anyone has a PCB for Pork Loin?

Thank you!
gigelmargel
Resistor Ronker
 
Posts: 253
Joined: 16 Jul 2007, 21:57
Has thanked: 14 times
Have thanks: 15 times

Re: Way Huge - Pork Loin

Postby modman » 30 Mar 2018, 08:52

You do not have the required permissions to view the files attached to this post.
"The whole point of diy is diy. It's not dsoiyathodtr - do some of it yourself and then have others do the rest" (paulc)

For this message the author modman has received thanks: 5
95H (30 Mar 2018, 10:02), Intripped (30 Mar 2018, 14:32), Manfred (30 Mar 2018, 18:59), sixthfloor (30 Mar 2018, 11:41), vot (30 Mar 2018, 13:27)
User avatar
modman
a d m i n
 
Posts: 4298
Joined: 19 Jun 2007, 17:57
Has thanked: 3107 times
Have thanks: 546 times

Re: Way Huge - Pork Loin  [traced]

Postby x-tn » 20 Apr 2018, 17:03

I didn't like the way that schematic is arranged. So, I tried to tidy it up.
You do not have the required permissions to view the files attached to this post.

For this message the author x-tn has received thanks: 2
modman (10 May 2018, 14:43), mr coffee (07 Aug 2018, 22:34)
x-tn
 
Posts: 26
Joined: 24 Sep 2009, 23:34
Has thanked: 122 times
Have thanks: 18 times

Re: Way Huge - Pork Loin

Postby FeVeR2112 » 09 May 2018, 15:58

Does anyone know what the omitted voice pot was or how it affected the circuit? The schematic here doesn't include it so can't see where it was fitted in.
FeVeR2112
 
Posts: 43
Joined: 27 Dec 2013, 07:07
Has thanked: 16 times
Have thanks: 24 times

Re: Way Huge - Pork Loin

Postby x-tn » 10 May 2018, 12:21

FeVeR2112 wrote:Does anyone know what the omitted voice pot was or how it affected the circuit? The schematic here doesn't include it so can't see where it was fitted in.

See the (incorrect) schematic on page 2:
viewtopic.php?f=7&t=4787&start=20#p170819

For this message the author x-tn has received thanks:
modman (10 May 2018, 14:43)
x-tn
 
Posts: 26
Joined: 24 Sep 2009, 23:34
Has thanked: 122 times
Have thanks: 18 times

Re: Way Huge - Pork Loin

Postby johnk » 12 May 2018, 18:09

BTW, i also managed to fit it in a 1590B so made another one with a relayed true bypass:

Image

Image

For this message the author johnk has received thanks: 3
287m (12 May 2018, 18:27), x-tn (13 May 2018, 23:37), zzztop (18 Jun 2018, 23:39)
johnk
Resistor Ronker
 
Posts: 273
Joined: 05 Apr 2010, 08:33
Has thanked: 31 times
Have thanks: 269 times

Re: Way Huge - Pork Loin

Postby FeVeR2112 » 13 May 2018, 05:54

Johnk: Very nice shiny box.... how do you do your graphics? Looks engraved or etched...
FeVeR2112
 
Posts: 43
Joined: 27 Dec 2013, 07:07
Has thanked: 16 times
Have thanks: 24 times

PreviousNext

Return to Boutique Stompboxes dissected...

Who is online

Users browsing this forum: Visualdistortion and 6 guests