I am currently building my 1st CBG and am planning to add a piezo pickup. I have read a bunch about piezos feeding back & what can be done to reduce it.

Would it be feasable to use a small circle of Dynamat rubberized audio sound dampening material attached to the back of the piezo, or covering/doming the back side but not touching it?

Seems like this would prevent sound waves from reaching the back side of the piezo which may help reduce feedback...maybe I'm way off base though. My concern is that it may interfere with the effectiveness of the piezo in some way.  Any thoughts?

 

Thanks for your help, Joe

Views: 2229

Reply to This

Replies to This Discussion

It is under the lid off to the side of the neck as it goes through the body.

 

Sorry, I misunderstood you. What did you use to glue it to the lid?

Hot glue or epoxy works the best, in my opinion. You have to make sure whatever holds it to the lid transmits the vibrations to the disc.

Super glue.  Was that a bad idea?

Pop it off and try hot glue or epoxy. I think you will find it will work a whole lot better.

Will do.

Piezos feed back if too close to the  amp speaker - there is an acoustic amp with a built in anti-feedback switch, the Marshall ASD-50D 50 watt combo, but sitting several feet from any ordinary amp and keeping the volume and gain down will cut out the feedback - unless if there when you want it! (-;

This feedback isn't quite like if I plugged my acoustic or an ES330 or a Casino into my AC15C1.  I get what you are saying, and even have it on a 15 ft. line with me facing away from the amp and me between the amp and the guitar.

The key to not getting feedback with a piezo is to use the correct type of piezo. I would recommend the piezo sold by the ebay username of jburdog. Below is the link to where you can get some. I've used the on my cbg's and they work very well. It would be best to hot glue the piezo under the bridge.

 

http://www.ebay.com/itm/5pcs-35mm-Cigar-Box-Guitar-Piezo-Pickups-Se...

I normally embed a 27 mm piezo in my bridge under a brass or black threaded bolt without much feedback issues. My last build I tried another disc in parallel and was getting a lot of feedback with it mounted on the box near the sound hole so I moved it to the neck and eliminated most of it, the thing is experiment with the placement. Just tape it in so that you can move it arround, then when you do find a sweet spot glue or silicone it in place. Also the amp is key as well, I use Billy Gibbons theory on larger amps with the CBG using a piezo.............no treble, full bass. Good luck and have fun jammin.

RSS

The Essential Pages

New to Cigar Box Nation?How to Play Cigar Box GuitarsFree Plans & How to Build Cigar Box GuitarsCigar Box Guitar Building BasicsCigar Box Guitar Parts Store

Site Sponsor


Recommended Links & Resources


Forum

A Young Frank Zappa Performs Music on a Bicycle with Steve Allen

Started by Shane (www.ShaneSpeal.com) in Feature Articles. Last reply by Jim Morris 10 hours ago. 12 Replies

Tunings

Started by Dani Basaldua in Performances, How to Play, Lessons, Concerts. Last reply by Dani Basaldua 22 hours ago. 11 Replies

Steven Tyler of Aerosmith Playing His Cigar Box Guitar

Started by Shane (www.ShaneSpeal.com) in Feature Articles. Last reply by Hilo Greg yesterday. 11 Replies

VIDEO - 1917 Film, "The Making of a Ukulele"

Started by Shane (www.ShaneSpeal.com) in Feature Articles. Last reply by Beslide CBG yesterday. 1 Reply

The Mysterious "Ukulele Echo Device" From the 1920's

Started by Shane (www.ShaneSpeal.com) in Feature Articles. Last reply by Jim Morris yesterday. 7 Replies

Happy Piezo Discovery

Started by Kevin Perlic in Building Secrets, Tips, Advice, Discussion. Last reply by Cause the Blue rat on Saturday. 2 Replies

Pedal Order

Started by Michael Cuell in Performances, How to Play, Lessons, Concerts. Last reply by The Phrygian Kid on Saturday. 7 Replies

Blog Posts

Lessons for Beginners

Posted by Paul Boyle on February 7, 2016 at 12:30pm 0 Comments

The Beater

Posted by Alan Hergert on February 4, 2016 at 2:22pm 3 Comments

It's time to build again.

Posted by martin walsh on February 4, 2016 at 1:34pm 1 Comment

ONE YEAR IN

Posted by T-Gripped on February 2, 2016 at 3:00pm 2 Comments

Latest Activity

wes carl commented on Andries D. EKER's video
Thumbnail

Come up to the House T Waits A D Eker 2016

"Reading is fundamental - Like the kick *****  T Waitz  T Bone  T Ekerrrrrrrrrrrr"
32 minutes ago
Ron Costa joined Andy Stone's group
Thumbnail

Cigar Box Ukulele

Does your cigar box contain a jumping flea?
34 minutes ago
smilingdog1 commented on J.Rob's video
36 minutes ago
smilingdog1 liked J.Rob's video
37 minutes ago
wes carl commented on Beslide CBG's video
Thumbnail

Beslide CBG ( western blues )

"Zanr Gray aint got nothing over on you - Cool western vibe *****"
39 minutes ago
wes carl commented on James O Lunsford's video
Thumbnail

Tickling Little Red

"like a water fall -  cascades over you and bubbles back up to goodness *****"
43 minutes ago
wes carl commented on J.Rob's video
47 minutes ago
Dave Lynas liked Rich's photo
47 minutes ago
Dave Lynas liked Rich's photo
47 minutes ago
Dave Lynas liked Li'l Chuck's photo
49 minutes ago
Uncle John commented on Rich's photo
Thumbnail

RTL CBG 3 string Walnut Head front

"Your Janis Joplin was just as good.  TCB.!"
49 minutes ago
Dave Lynas commented on Frank Carr's photo
Thumbnail

Diddley Bows

"Wow. Love the marker boards. Like runways for sliding..."
49 minutes ago

Music

Loading…

© 2016   Created by Ben "C. B. Gitty" Baker.   Powered by

Badges  |  Report an Issue  |  Terms of Service