HELP! To much noise!

[minions]

I just finished soldering my custom guitar yesterday, and I strung it and plugged it in today.

As soon as I plugged it in, there was a ton of buzzing that decreased slightly when I put my hand on the jack plate or the lead, but was still loud. I have two metal toggle switches in my guitar and whenever I touched them, the buzzing worsened.

It's a Strat using S-Tastic Expanded wiring seen here (scroll to the bottom):

http://guitarnuts2.proboards.com/index.cgi?board=schem&action=display&thread=3144

What causes this? What can I do to fix this?

Thanks.

 

[Funkfingers]

Re: HELP! To much noise!

The published schematic diagram omits the grounding wire from the vibrato spring "claw". If your guitar has any cavity screening, that needs to be grounded also. Both of these items are usually grounded to the underside of the volume pot.

 

[minions]

Re: HELP! To much noise!

Wait, what is cavity screening?

 

[minions]

Re: HELP! To much noise!

Is it the same as shielding?

 

[Funkfingers]

Re: HELP! To much noise!

Affirmative.