Replies to This Discussion

Permalink Reply by Bama Hound on October 12, 2015 at 2:30pm

      There is a difference between an amp and a pre-amp. You need to be more specific as to what you are trying to achieve. If you really mean amp,Honeytone makes one with a built in belt clip.You can be a walking rock and roll band,until your 9  volt battery runs down.(;-D)

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Permalink Reply by Tom T on October 12, 2015 at 2:48pm

I think you are talking about a setup similar to the Pignose PGG-200 guitar--> Pignose Guitar

It's a pretty cool six string with a Pignose portable amp installed in the guitar body.

If you are planning on using a mag pickup, I think you might get away with it. If you're thinking Piezo, that may be a problem. Bench testing might be the best way to see if it can be done with common off the shelf parts.

Nothing to lose in trying it and you will learn some things in the process. That's one of the best parts of designing and building your own guitars.

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Permalink Reply by Ian Dickson on October 12, 2015 at 6:40pm

Thanks. That pignose is exactly what I was thinking of. I suppose potting the pickup would be advisable?

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Permalink Reply by Tom T on October 13, 2015 at 2:13am

Potting the pickup (piezo) is pretty much SOP, so "yes"

I would give the pickup plenty of wire length so you can move it around a lot. Don't be afraid to move the pickup all over the box in search of that non-feedback location. I would even try it on the outside (sides, back) of the box just to gauge the response.

I think you can make this work, but it will take some patience in pickup positioning.

Another thing to consider is the speaker itself. It may help to reduce feedback if the speaker is not mounted firmly against the box lid. That would reduce the speaker vibration induced into the lid and thus into the piezo. Maybe s little foam to isolate the speaker a bit.

A lot can be learned from this project. Keep us posted

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Permalink Reply by JL on October 13, 2015 at 1:39am

The ones I have seen are solid body, not acoustic, with mag not piezo pickups. there was another thread here-abouts that discussed the problem with feedback when the amp and piezo are in the same box.

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Permalink Reply by Ron "Oily" Sprague on October 13, 2015 at 3:46am

Ian,

Have a look at this vid, and read the comments. Then, contact the builder, a member here at CBN named Harrison Withers, for specific build details. Yes, this guitar does feedback on certain notes. That is part of its charm, and can be worked with creatively.

http://www.cigarboxnation.com/video/oily-s-guitar-lounge-grandpa-s-...

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Permalink Reply by the anonymous pick on October 13, 2015 at 7:09am

i  have  built  many  built in amp    guitars  .   the biggest  tip  i  have  is  to  keep  the  speaker as  far away    from  the    mag  pickup as you   can  .   you  will    still  get    some  feedback     when  cranked   and  on  overdrive  ..  but  it  is  controllable and  usable     and  can  even  be  fun   to  work  with  .

other   options are  copper  sheilding  etc etc  .   but  you  can  get away  with it    without    it  ,  if  you  have    the  space   . 

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