This bypass i made

[eetfuk]

Hello, my name is Tommy Olsen. And am on my first year studying Electronics.

We were asked to do a project and i decided to make a pedal! Accualy 6. Which we are to fit into a 19" Rack.
(Using a old hub casing for box!)

We decided to use Momentary switches, to make it "Smoother" to press!
The thought is also to connect this with a USB Experimental card, we have bought earlier, so that we can select effects via the computer!


Anyways i were asked to make a bypass circut. I came up with this. Will it work?
And if, will this have any noticable disadvantage that enables us to use both those features at the same time?

The 4066 Is an analogue switch(duh)
Im also aware of the Dist\Clean being in the wrong order.
The component choice might be odd, but this is what we had lying around!

[bioroids]

Take a look at "the technology of bypass" at www.geofex.com , it has pretty much answers to all your questions regarding this.

Luck! and welcome

Miguel

[eetfuk]

Hmm, even thought i enjoyed reading it, it..
I did not find any answers.

I do not wish to use True Bypass. mostly because i wish to controll it from a computer.
After a quick read, i found out that this were only about True Bypass and buffered.

[Peter Snowberg]

Welcome to the forum. 

You want to read this: http://www.geofex.com/Article_Folders/cd4053/cd4053.htm and this: http://www.geocities.com/thetonegod/switches/switches.html .

Your schematic will not work as drawn. Do you really need to accommodate a signal swing of -9 to +9V? That makes things more complex because the CMOS parts don't want to see more than 15V total.

I prefer little telcom relays for switching but they suck current all the time. Latching relays are another way to go. More info on those here: http://www.geocities.com/transmogrifox/relay

[bioroids]

Hmm, even thought i enjoyed reading it, it..
I did not find any answers.

I do not wish to use True Bypass. mostly because i wish to controll it from a computer.
After a quick read, i found out that this were only about True Bypass and buffered.

You are right, the Tech of bypass is not the page you want, my mistake. The page I was thinking was the one Peter linked in the message above. THERE are a lot of answers there.

Luck!

Miguel

[eetfuk]

Welcome to the forum. 

You want to read this: http://www.geofex.com/Article_Folders/cd4053/cd4053.htm and this: http://www.geocities.com/thetonegod/switches/switches.html .

Your schematic will not work as drawn. Do you really need to accommodate a signal swing of -9 to +9V? That makes things more complex because the CMOS parts don't want to see more than 15V total.

I prefer little telcom relays for switching but they suck current all the time. Latching relays are another way to go. More info on those here: http://www.geocities.com/transmogrifox/relay

Thank you, for both the links and pointing out the voltage issue, i havent thought of that. Guess a 5V or 6 will do just quite ok!
Is this the only problem with this? The IC only contains 4 SPST switches, with is toggled by the flip flop, i found it quite simular to the one in the first link. (only it was alot better)

And it looked like the "Wicked Bypass" looks like im on to something