Hiya guys,  Just joined the site today,still trying to find my way around so I hope this lands in the right section. My million dollar Question???  How can I stop my cigar box guitar from feeding back? Built 3 guitars all with piezo pickups, every one screams its head of just like a Banshee!!!  Is it me or just the way I  constructed the instrument?   Would I be better installing normal single coil pickups instead of the piezos?  Any advice would be great. Looking forward to some feedback <excuse the pun> ha ha.

Thanks guys

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just me 2 pennies worth though I'm a player not a builder -piezos generally ok for living room volumes..but stage volumes are something else.If you're building a cbg that might be treading the boards piezos can struggle... several members are building their own quality pups here on the nation (Juju and Bob Harrison spring to mind)..and if you wanna build a stage friendly cbg I'd go that way..but like I said,piezos are fine at low to medium volumes in a non demanding environment (bedroom/living room).

ps-microcube is the best small amp imo-good choice.You wont need any tips-its pretty straightforward-youll love it.

***** great answer. Of course in that lounge room / bedroom setting amplification probably is completely uneccesary and a far More pleasing sound / accurate representation could be had with a microphone??
I like the foamy double sided tape...provides a little cushion between the piezo and the wood.  I then wrap it across the exposed face to dampen some of the chamber sound from directly hitting the piezo.  Works for me....good luck.


HOLLOWBELLY said:

just me 2 pennies worth though I'm a player not a builder -piezos generally ok for living room volumes..but stage volumes are something else.If you're building a cbg that might be treading the boards piezos can struggle... several members are building their own quality pups here on the nation (Juju and Bob Harrison spring to mind)..and if you wanna build a stage friendly cbg I'd go that way..but like I said,piezos are fine at low to medium volumes in a non demanding environment (bedroom/living room).

fuitps-microcube is the best small amp imo-good choice.You wont need any tips-its pretty straightforward-youll love it.

Thank you my friend,   I'm also a pro player,but I play strats, so it's a newish venture on the cigar box but have a good grounding with open tunings etc. Still trying to combat this feedback element I think I might try fitting a humbucker. Any ideas on wiring a humbucker direct to a   input jack, five wires on humbucker.   Thanks for your help.

Luv

Derek        

 

Hi Derek

You have a bare wire that is the shielding and this goes to ground - the other 4 are from the 2 coils which colour code varies depending upon the humbucker manufacturer.

(From Seymour Duncan http://www.seymourduncan.com/support/wiring-diagrams/)

 

 

Also for axesrus humbuckers

Wiring - Red = Live, Black & Silver = Ground, Green & white = Coil Tap (Joined for normal operation)

 

Giovanni

Wiring - Green = Live, Black & Silver = Ground, Red & white = Coil Tap (Joined for normal operation)

 

Once you know the wiring - the hot wire goes to the jack socket lug that will contact the tip of the jack plug and the earth to the one which will contact the shaft (if you look at the jack socket with the jack plugged in it is easy to see which is which)

 

Have you thought of doing a coil tap so you can have series/split/parallel options?

 

You can also substitute the piezo in place of a magnetic pickup on the wiring diagrams so you can have both piezo and magnetic options on the cigar box.  (For ideas the Seymour Duncan wiring diagrams are worth a look).

 

Regards

David

Thanks David, I have just purchased the Artec mini humbucker, 5 wires:  Green - Live,  Red/White- Split tap, Black/ Braided- Earth

I will be wiring them straight to a jack input socket, any suggestions would be appreciated, as you can tell electronics are not my best subject.  You guys are just great,

Thanx a million

Hi Derek

You have a bare wire that is the shielding and this goes to ground - the other 4 are from the 2 coils which colour code varies depending upon the humbucker manufacturer.

(From Seymour Duncan http://www.seymourduncan.com/support/wiring-diagrams/)

 

 

Also for axesrus humbuckers

Wiring - Red = Live, Black & Silver = Ground, Green & white = Coil Tap (Joined for normal operation)

 

Giovanni

Wiring - Green = Live, Black & Silver = Ground, Red & white = Coil Tap (Joined for normal operation)

 

Once you know the wiring - the hot wire goes to the jack socket lug that will contact the tip of the jack plug and the earth to the one which will contact the shaft (if you look at the jack socket with the jack plugged in it is easy to see which is which)

 

Have you thought of doing a coil tap so you can have series/split/parallel options?

 

You can also substitute the piezo in place of a magnetic pickup on the wiring diagrams so you can have both piezo and magnetic options on the cigar box.  (For ideas the Seymour Duncan wiring diagrams are worth a look).

 

Regards

David

For 5 wires:  Green - Live,  Red/White- Split tap, Black/ Braided- Earth

 

Hi. Do I have to use a rod as saddle if I put the piezo inside the bridge? Isn't it ok if I use wood or plastic?

I have been putting a rod PU in the bridge / saddle.  I make a cut in the bridge w/ my radial arm saw - the 1/8" kerf is the right size to drop in the rod cut to 3 or 4 "bumps"  & I put a slice of corian above it, still in the slot , for the saddle.  A huge improvement from the disk PU in my opinion.  Greatly reduced handling noise & much better bass.  I don't think it picks up as much of the box resonance though.

I would say with some work piezzios can be used in a high amplification situation ie on stage and many people do.

but you need to definitely work on taming them

I go for two in parallel and mount them on the neck near the bridge but on the opposite side. I also dampen them by gluing a thin layer of wood on top

seams to do the trick and make the guitar viable for stage work.

Any guitar will feed back at some point so you are never going to get red of it totally. I would say if you do the above and you have experince (or your rodies or sound man) of using and amping an acousic guitar you will be in familiar territory

check my blog out

http://darrenscigarboxguitars.blogspot.co.uk/

Turn the amp around so it is not facing the CBG?

Hi wrap it in a hanky and let it float. Works for me

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