I've built my very first CBG and installed a simple , single piezo w/o volume control . Mounted it right under the bridge as well . The connection between the jack and amp cord is good but I get no sound at all . Having max volume on the amp does no good . Anyone have any ideas ?

Views: 585

Reply to This

Replies to This Discussion

Note for future builds: bench test the piezo/jack/pot before installing in the box...

And make sure not to tear up anything while installing. Been there, done that.

Hi, that tremolo effect sounds pretty effective, BUT BEWARE, not all guitars are made equal. Let me explain. The braces on the top of a handmade guitar are often tuned and carved for maximum response from the strings. I use the "pushing on the top for testing flexibility with the thumb trick" when carving top braces. So I can understand that that movement is there.
On the other hand some factory guitars often take shortcuts, you would be surprised of what I see inside many of the top brands. Bracing is not always fitted well, joints are far from tight. One brand did not even check the ends of the bracing into the side linings.
And this is the problem, you could push the brace off of the inside face of the guitar, especially if the bracing is stiff and needs extra effort to make the top move.
Sorry to be so wordy. By way of an example...a customer brought in his guitar (the brand that does not secure the brace ends into the side linings) tucked it under his arm clamping it to his chest, just I said don't do that....a loud crack came from the guitar, you guessed it....I got a brace repair job too.

Why am I saying all this? It ain't gonna happen with a CBG.
Cheers Taff

Hard tail bridges are normally used with magnetic pickups, so they don't transfer the string vibration as well too the top, which is usually a solid body top. I see your build is fretless (looks nice btw), so maybe make a simple wooden bridge and place it between your current hard tail bridge and soundhole, and see if that doesn't increase the output from the piezo? You can stick a piece of scrap would to test, just so it is the right size to contact the strings and the guitar top enough such that there is string pressure going to the top.

The metal hard tail bridge will work fine with a piezo. Will offer a different tone than a wood bridge, but will work fine.

Thanks Paul, I would like to give this a try: which position of a hard tail bridge do you prefer: at the edge of the box or where you would put a floating bridge? Where to put the piezo: just underneath the bridge or somewhat away?

Well acoustically speaking, bridge placement is best towards the center of the top or just off center and making your neck to accommodate this bridge position with scale length. You'll need support of some kind under the top to screw/bolt the hardtail bridge and brace for the downward pressure. A neck through construction or through piece with bolt on neck will work great.

Placement of the piezo depends on your personal tastes. you could cut a small pocket in the through piece/neck through under the bridge and place the piezo there, mount it to the through piece/neck between the bridge and box side, anywhere under the top or in the neck/through piece pocket of a bolt on style construction.

You could wire 2 piezo to a 3-way switch and place the 2 piezo in different places to switch between or use both.Lots of ways to go with.

not the problem causing "no sound".  I've built CBGs with both mag and piezo pups on selector switches with hardtail bridges with no problems.  fault here is defective piezo, wiring or jack....

Thanks for the info Sam. That should be an easy fix.

Hi, first disregard the earlier post I made re tremolo, I tried to delete it but it turned up here.

RE the piezo issue. A piezo in good condition will work, with good volume, even if clamped to the peghead so I'm thinking your problem is elsewhere.

Cheers Taff 

   Thanks Taffy . Actually I gave up trying to get the piezo to work so I installed a magnetic pick up . It was a little tricky but finally got it in and working . Thanks to everyone for their input

Hey Todd I posted some pics and a lesson on peizo installation from my friend Rob on my page check it out. I hope that helps. Ken

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

Cigar Box Amp Mods

Started by Cigar Box Nation in Feature Articles. Last reply by RTZGUITARS on Friday. 14 Replies

Blog Posts

Mr. Bells

Posted by Stephen Cohen on September 4, 2021 at 12:30pm 0 Comments

Bookie's Poor Man's Dobro

Posted by Steve Bookout on July 18, 2021 at 2:04pm 3 Comments

Get your groove on for free

Posted by François on July 13, 2021 at 3:05pm 1 Comment

Latest Activity

AJEICBG liked RON NORTHCUTT's photo
48 minutes ago
AJEICBG liked RON NORTHCUTT's photo
48 minutes ago
Richard Sundberg posted a video
1 hour ago
Uncle John commented on Cigar Box Blues's video
Thumbnail

- Beans fer Breakfast! - One of Daves last projects

"Can't you just about smell the tin can hobo coffee?  Smells great to me and I don't…"
2 hours ago
James Pobog replied to Ben's discussion Wine Box guitar and box airtighness
"Personally, I set pillars in the inside corners and screw to them (though I am far from expert). I…"
4 hours ago
GARAGE HERMIT liked Uncle John's video
4 hours ago
Taffy Evans replied to Ben's discussion A big wine box
"Hi again, I have a bit more time now, so this what I would do. I'll leave you to work out the…"
4 hours ago
Jerry Jordan posted a photo

3x3=9

3 3 strings from St Wishnevsky
4 hours ago
the anonymous pick commented on CLG's photo
Thumbnail

20210919_115618

"pretty slick bud ."
5 hours ago
Jim Morris liked Cigar Box Blues's discussion - Memorial for Dave Lynas -
5 hours ago
Rope Walker Country Star liked Cigar Box Blues's discussion - Memorial for Dave Lynas -
5 hours ago
James Pobog posted a discussion

Starting to plan for....

...a baritone CBG. I have a big square thin box like Shane's and I'm going to try making another…See More
6 hours ago

Events

Music

© 2021   Created by Ben "C. B. Gitty" Baker.   Powered by

Badges  |  Report an Issue  |  Terms of Service

\uastyle>\ud/** Scrollup **/\ud.scrollup {\ud background: url("https://storage.ning.com/topology/rest/1.0/file/get/963882636?profile=original") no-repeat scroll 0 0 transparent;\ud bottom: 25px;\ud display: inline !important;\ud height: 40px;\ud opacity: 0.3 !important;\ud position: fixed;\ud right: 30px;\ud text-indent: -9999px;\ud width: 40px;\ud z-index: 999;\ud}\ud.scrollup:hover {\ud opacity:0.99!important;\ud}\ud \uascript type="text/javascript">\ud x$(document).ready(function(){\ud x$(window).scroll(function(){\ud if (x$(this).scrollTop() > 100) {\ud x$('.scrollup').fadeIn();\ud } else {\ud x$('.scrollup').fadeOut();\ud }\ud });\ud x$('.scrollup').click(function(){\ud x$("html, body").animate({ scrollTop: 0 }, 600);\ud return false;\ud });\ud });\ud \ua!-- End Scroll Up -->