grounded input vs normal input

[darrylportelli]

Hey I use the ''normal'' wiring as shown on geofex's wiring diagram for 3pdt's. whats the difference between that and a grounded input?? does it reduce hum or maybe it reduces the switch clicking noise since its grounded??
Thanks

[R.G.]

Some circuits are unstable when their input is open circuited. The high impedance lets them oscillate or amplify noise unpleasantly. Grounding an input holds them not oscillating or not amplifying noise.

[MikeH]

Is there any disadvantage to grounding the input of an effect in bypass?  IOW, is there any time when it is a bad idea?

[El Heisenberg]

You guys talking bout "millenium" bypass? I've never used it.

What could happen to your pedals over time without the input grounded? Or are the affects youre talking about only apply to the sound instead of the circuit?

[R.G.]

Is there any disadvantage to grounding the input of an effect in bypass?  IOW, is there any time when it is a bad idea?

Not that I know of. You ground the AC signal point, not any of the internal DC.

You guys talking bout "millenium" bypass?

No.

I've never used it.

Bummer. Maybe you should try it.

What could happen to your pedals over time without the input grounded?

It's like operating with your guitar volume knob at 0. No problem.

Or are the affects youre talking about only apply to the sound instead of the circuit?

No "or" involved. Grounding an input means only to ground the signal input, not internals.

[El Heisenberg]

Ok i guess my question was, why use different bypassing configurations? Ive seen the millenium bypas or what i think is millenium, on the GGG instruction PDFs. Ive always just used two of the poles on the switch to bypass and left the third for the LED.

[MikeH]

Is there any disadvantage to grounding the input of an effect in bypass?  IOW, is there any time when it is a bad idea?

Not that I know of. You ground the AC signal point, not any of the internal DC.

Thats what I figured.  I ground the inputs of everything just by habit at this point.

[darrylportelli]

Hey. ok so Im gonna keep using the ''normal'' wiring and if I get an oscillating sound Ill try grounded. Thanks

[doitle]

Ok i guess my question was, why use different bypassing configurations? Ive seen the millenium bypas or what i think is millenium, on the GGG instruction PDFs. Ive always just used two of the poles on the switch to bypass and left the third for the LED.

The point is so you don't have to use a 3PDT switch. Those can be a little expensive sometimes.

[Paul Marossy]

Ok i guess my question was, why use different bypassing configurations? Ive seen the millenium bypas or what i think is millenium, on the GGG instruction PDFs. Ive always just used two of the poles on the switch to bypass and left the third for the LED.

The point is so you don't have to use a 3PDT switch. Those can be a little expensive sometimes.

I find that the Carling DPDT switches actually are more expensive than the 3PDT switches are.

Anyhow, I generally don't use a grounded circuit input true bypass switching scheme, but I will use it on something that I know will definitely oscillate easily. Stuff like the wild Fuzz Face type circuits that you can get to squeal like nuts and things like that.