Wiring - how to wire a mono in / stereo out bypass

jfromel · Post by **jfromel** » 17 Apr 2008, 08:14

Cant seem to figure it out, I cloned a Boss DC-2 and the thing sounds amazing but I cant figure out how to bypass this thing with a 3PDT switch and still have the LED work, I dont need it to be TB, just to work, any help would be appreciated. I dislike boss's bypass so I built it without hoping to do true bypass or a buffer on a seperate small board.

puppiesonacid · Post by **puppiesonacid** » 17 Apr 2008, 10:49

http://www.beavisaudio.com/techpages/St ... /index.htm

this should be pretty straightfoward for you. beavis's site is amazing. hope this helps.

btw, could you pm me your layout for the dc-2?

puppiesonacid

jfromel · Post by **jfromel** » 17 Apr 2008, 15:59

Beavis's site is great but it does not have anything on wiring a stereo pedal.

JiM · Post by **JiM** » 19 Apr 2008, 00:10

What about Millenium Bypass ? http://www.geofex.com/article_folders/m ... millen.htm
With 3PDT, you could wire the first two poles like a mono true-bypass w/ Millenium, then wire the third pole to switch the second ouput just like the first one (without Millenium Bypass of course, one LED should be enough).

puppiesonacid · Post by **puppiesonacid** » 19 Apr 2008, 02:51

Beavis's site is great but it does not have anything on wiring a stereo pedal

sorry, I misunderstood you. I thought you just meant the regular mono/stereo in/out jack thing...

NickS · Post by **NickS** » 21 Apr 2008, 14:44

Surely a potential problem is that the pedal buffers the signal and sends it to two outputs: if you are using "true bypass" this you'll be connecting the guitar directly and unbuffered to two amplifier inputs in parallel. This may or may not be OK, depending on the input impedances (and on whether you use a buffer as the first pedal in your effects chain anyway...).

andre · Post by **andre** » 21 Apr 2008, 14:57

Here's a little schematic I made for true-bypassing a DC-2 with added millenium bypass:

André

lohstah · Post by **lohstah** » 11 May 2008, 18:13

hi jfromel,

which layout did you use ?
i used the topopiccione layout for mine, and there was something i found out that i posted a thread about over at diy stompboxes, here´s the link:
https://www.diystompboxes.com/smfforum/ ... ic=54547.0
it´s about the stereo/mono thing with the switch...what do you think about it ?
also, did you finally decide how to do the bypass ? mine´s finished since almost one year but i never put it in a box...today (funny coincidence, it was before i read your post) i remembered the dc-2 again and now i want to box it up, so i´d be curious to see if you solved the problem.
i thought about using a 3pdt with the millenium bypass, like nelson suggested in his build instructions for the clone theory.

cheers,
lohstah

jfromel · Post by **jfromel** » 30 Jun 2008, 06:33

I used a Millinium bypass, it works great. I did the whole circuit on a new double sided pcb with PCB Express. Even though I did it myself it would not really be cost effective for anyone to do it themselves. The four prototype boards were about $200 alone not counting the components. I have made about a dozen so far, they sound way better than the DC-2. I have about 40 boards left and after that I doubt I will build any more of these, it's a really difficult build.

My version has the stereo mono switch, in mono it makes no difference but in stereo the voicing is better. The switch was a necessary part of removing all the buffered bypass circuit.

ech0es · Post by **ech0es** » 07 May 2009, 18:05

Somebody could draw a schematic with a 3PDT ?

Is it correct:

andre · Post by **andre** » 07 May 2009, 20:13

Do you mean something like this?

ech0es · Post by **ech0es** » 07 May 2009, 21:54

maybe, what is the millenium output ?

JiM · Post by **JiM** » 08 May 2009, 00:25

ech0es wrote:maybe, what is the millenium output ?

Maybe the response is above, in this very thread.

andre · Post by **andre** » 08 May 2009, 07:00

The drawing I did last night is wrong.
I tried to change the picture, but could no longer edit my post.

by JiM on 08 May 2009, 02:25

ech0es wrote:
maybe, what is the millenium output ?

Maybe the response is above, in this very thread.

To avoid confusion I also changed "to millennium output" to "to millennium bypass"

So this should be correct:

ech0es · Post by **ech0es** » 08 May 2009, 09:25

Is it possible to do it without a millium bypass ?