Fulltone - OCD  [traced]

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

Re: Fulltone - OCD

Postby Intripped » 22 Aug 2015, 19:25

howmuch wrote:So does your OCD have the same clipping configuration as the Joyo clone's corrected circuit I posted here - the "Circuit when D2 is in the "correct" orientation"?
[ Image ]

You've got ---->|---[S+G] [D]---- and the corrected Joyo is electrically the same with ----[S+G] [D]---->|---
Or put another way, on the schematic yongki posted above, move the gate connections from the drains to the sources?



YES to all

...and to avoid any further confusion, here is the exact clipping section:
You do not have the required permissions to view the files attached to this post.

For this message the author Intripped has received thanks: 3
Duckman (22 Aug 2015, 20:33), dv8r601 (15 Jun 2017, 23:09), howmuch (22 Aug 2015, 22:35)
Intripped
Resistor Ronker
 
Posts: 444
Joined: 25 Aug 2009, 02:03
Has thanked: 487 times
Have thanks: 205 times

Re: Fulltone - OCD

Postby SamBloody » 26 Jul 2016, 13:04

Hi guys!
Can you give me verified fulltone ocd pcb layout?
Thanks!
SamBloody
 
Posts: 2
Joined: 24 Jul 2016, 19:28
Has thanked: 0 time
Have thanks: 0 time

Re: Fulltone - OCD

Postby storyboardist » 26 Jul 2016, 16:59

Here's my layout.

Image

For this message the author storyboardist has received thanks:
Blitz Krieg (27 Jul 2016, 07:00)
User avatar
storyboardist
Breadboard Brother
 
Posts: 77
Joined: 28 Dec 2013, 01:08
Location: Georgia, USA
Has thanked: 55 times
Have thanks: 140 times

Re: Fulltone - OCD

Postby 287m » 26 Jul 2016, 17:19

Nice layout David :thumbsup
perfect for 1590B

so i present to 1590A Club masochist :mrgreen:
Image
reff sch https://4.bp.blogspot.com/-G_jLNr0ZECI/V5eM7fNInjI/AAAAAAAAALU/-A2SqlvuXIImWgGU-js1ryFJmnahiw1IACLcB/s1600/ocd-sch.png

For this message the author 287m has received thanks:
Blitz Krieg (27 Jul 2016, 07:01)
287m
 
Posts: 45
Joined: 11 Nov 2014, 23:51
Location: Heaven ~ Hell
Has thanked: 160 times
Have thanks: 8 times

Re: Fulltone - OCD

Postby SamBloody » 26 Jul 2016, 18:55

Thank you,guys!
SamBloody
 
Posts: 2
Joined: 24 Jul 2016, 19:28
Has thanked: 0 time
Have thanks: 0 time

Re: Fulltone - OCD

Postby V1nce69 » 18 Aug 2016, 11:22

Hi all,

I own an OCD #84590 with a pcb revision 1.4. Wanting to know how it works, I traced the complete pcb and made a drawing out of it. Here are a few pics and my drawing.

It might be of some interest.

IMG_0804_small.jpg


IMG_0805_small.jpg


IMG_4523_small.jpg


IMG_4524_small.jpg


OCD_pcb-layout-1.4.jpg
You do not have the required permissions to view the files attached to this post.

For this message the author V1nce69 has received thanks: 2
Intripped (18 Aug 2016, 14:33), Stray (15 Jun 2017, 17:30)
V1nce69
 
Posts: 32
Joined: 10 Nov 2013, 09:01
Location: Lausanne, Switzerland
Has thanked: 30 times
Have thanks: 52 times

Re: Fulltone - OCD

Postby Intripped » 18 Aug 2016, 14:38

nice work!
just a little note:
in your drawing, 2N7000 pins are named wrong
Intripped
Resistor Ronker
 
Posts: 444
Joined: 25 Aug 2009, 02:03
Has thanked: 487 times
Have thanks: 205 times

Re: Fulltone - OCD

Postby V1nce69 » 18 Aug 2016, 15:40

Intripped wrote:nice work!
just a little note:
in your drawing, 2N7000 pins are named wrong


Thanks for your comments. And yes I have just seen my mistake. So here is the corrected layout:

OCD_pcb-layout-1.4.jpg
You do not have the required permissions to view the files attached to this post.
V1nce69
 
Posts: 32
Joined: 10 Nov 2013, 09:01
Location: Lausanne, Switzerland
Has thanked: 30 times
Have thanks: 52 times

Re: Fulltone - OCD

Postby FuzzMonkey » 14 Jun 2017, 23:01


For this message the author FuzzMonkey has received thanks: 4
caspercody (28 Jun 2017, 17:15), Cigla tel. (15 Jun 2017, 12:58), dv8r601 (15 Jun 2017, 23:06), Intripped (15 Jun 2017, 08:05)
FuzzMonkey
Breadboard Brother
 
Posts: 78
Joined: 28 Dec 2009, 23:10
Has thanked: 21 times
Have thanks: 22 times

Re: Fulltone - OCD

Postby caspercody » 28 Jun 2017, 17:14

Would love to see that enhanced bypass layout.

Thanks for the article link!
caspercody
Solder Soldier
 
Posts: 204
Joined: 15 Jul 2009, 15:34
Has thanked: 25 times
Have thanks: 35 times

Re: Fulltone - OCD

Postby FuzzMonkey » 30 Jun 2017, 22:37

caspercody wrote:Would love to see that enhanced bypass layout.

Thanks for the article link!


I'm sure on will be cracked open soon enough.
FuzzMonkey
Breadboard Brother
 
Posts: 78
Joined: 28 Dec 2009, 23:10
Has thanked: 21 times
Have thanks: 22 times

Re: Fulltone - OCD

Postby bugg » 20 Aug 2017, 17:26

I traced the new V2 version this weekend. Will post the schematic once it's cleaned up and verified. :mrgreen:

For this message the author bugg has received thanks: 4
bajaman (01 Sep 2017, 09:20), caspercody (21 Aug 2017, 15:54), FuzzMonkey (22 Aug 2017, 20:59), jalmonsalmon (21 Aug 2017, 05:57)
bugg
Breadboard Brother
 
Posts: 64
Joined: 11 Feb 2013, 04:10
Has thanked: 24 times
Have thanks: 102 times

Re: Fulltone - OCD

Postby FuzzMonkey » 22 Aug 2017, 21:00

bugg wrote:I traced the new V2 version this weekend. Will post the schematic once it's cleaned up and verified. :mrgreen:


Thanks for your efforts Bugg. I look forward to seeing the schematic.
FuzzMonkey
Breadboard Brother
 
Posts: 78
Joined: 28 Dec 2009, 23:10
Has thanked: 21 times
Have thanks: 22 times

Re: Fulltone - OCD

Postby POTL » 22 Aug 2017, 22:09

Input and output buffer on jfet probably the main differences
The scheme of the bypass is more interesting
POTL
Solder Soldier
 
Posts: 192
Joined: 26 Sep 2016, 04:11
Has thanked: 41 times
Have thanks: 43 times

Re: Fulltone - OCD

Postby chuckd666 » 23 Aug 2017, 14:06

Wait, so let me guess.. now true bypass isn't exciting, they're going to start selling buffered bypass as a new thing? :o
chuckd666
 
Posts: 5
Joined: 29 Sep 2014, 04:23
Has thanked: 0 time
Have thanks: 0 time

Re: Fulltone - OCD

Postby POTL » 23 Aug 2017, 14:10

chuckd666 wrote:Wait, so let me guess.. now true bypass isn't exciting, they're going to start selling buffered bypass as a new thing? :o


Not really
These are 2 bypass modes true / buffered which are switched by the built-in toggle switch.
The buffer role in the bypass plays the output buffer on Jfet (as I understood from the description)
I'm interested in the switching system with SPDT or SPST toggle switch

For this message the author POTL has received thanks:
bugg (23 Aug 2017, 17:55)
POTL
Solder Soldier
 
Posts: 192
Joined: 26 Sep 2016, 04:11
Has thanked: 41 times
Have thanks: 43 times

Re: Fulltone - OCD

Postby bugg » 23 Aug 2017, 17:58

POTL wrote:I'm interested in the switching system with SPDT or SPST toggle switch


The toggle switch is DPDT. I'll post the schematic tonight. I have PCBs on order, the first batch will use smd jfets because they're much easier to source.

For this message the author bugg has received thanks:
jalmonsalmon (24 Aug 2017, 01:51)
bugg
Breadboard Brother
 
Posts: 64
Joined: 11 Feb 2013, 04:10
Has thanked: 24 times
Have thanks: 102 times

Re: Fulltone - OCD

Postby POTL » 24 Aug 2017, 03:19

bugg wrote:
POTL wrote:I'm interested in the switching system with SPDT or SPST toggle switch


The toggle switch is DPDT. I'll post the schematic tonight. I have PCBs on order, the first batch will use smd jfets because they're much easier to source.


DPDT?
Then I know how it works =)
Although we can see there is still some way.
POTL
Solder Soldier
 
Posts: 192
Joined: 26 Sep 2016, 04:11
Has thanked: 41 times
Have thanks: 43 times

Re: Fulltone - OCD

Postby POTL » 31 Aug 2017, 21:34

bugg wrote:
POTL wrote:I'm interested in the switching system with SPDT or SPST toggle switch


The toggle switch is DPDT. I'll post the schematic tonight. I have PCBs on order, the first batch will use smd jfets because they're much easier to source.

Hi, when will the schematic appear? :D
POTL
Solder Soldier
 
Posts: 192
Joined: 26 Sep 2016, 04:11
Has thanked: 41 times
Have thanks: 43 times

Re: Fulltone - OCD

Postby bugg » 01 Sep 2017, 01:30

Sorry man, haven't forgotten about you! Had to deal with some car repairs this week so been busy.

The trace is done, PCB is drawn, I just need to clean up the schematic and export to an image then I'll post it.

For this message the author bugg has received thanks: 2
caspercody (01 Sep 2017, 15:25), FuzzMonkey (01 Sep 2017, 09:04)
bugg
Breadboard Brother
 
Posts: 64
Joined: 11 Feb 2013, 04:10
Has thanked: 24 times
Have thanks: 102 times

PreviousNext

Return to Boutique Stompboxes dissected...

Who is online

Users browsing this forum: aionios and 19 guests