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Projects => Beginner Project => Topic started by: Battle Axe Mercy on July 11, 2006, 08:04:19 AM

Title: Modifications for onboard effect
Post by: Battle Axe Mercy on July 11, 2006, 08:04:19 AM
Hi,

First of all thanks, Aron, for enabling laymen like myself to rise above the confines of our ignorance.

I'd like to adapt the NPN boost for use as an onboard effect, would the following work? (Advice welcomed from anyone.)

(http://img88.imageshack.us/img88/624/circswled27lu.th.jpg) (http://img88.imageshack.us/my.php?image=circswled27lu.jpg)
Title: Re: Modifications for onboard effect
Post by: Pex657 on September 12, 2006, 08:04:05 PM
I am also curious, is it that simple to add it as an onboard effect?
Title: Re: Modifications for onboard effect
Post by: aron on September 12, 2006, 09:24:43 PM
Yes. Just take the wire that goes to the output jack on your guitar, then desolder it. Take that wire and run it to the input of the NPN boost. Take the output of the NPN-boost and wire it to the output jack of the guitar.

If you want to be able to bypass it (in case the battery runs out), use a DPDT as a toggle with your guitar. You can get one of those push-push or pull pots too.

The hardest part is finding space inside the guitar.
Title: Re: Modifications for onboard effect
Post by: aron on September 12, 2006, 09:26:02 PM
I forgot, you want want to wire a switching jack to output jack of the guitar to turn the preamp on/off. Wire it just like the INPUT jack on the beginner project, except use the output jack's ring for the battery ground.