Comment

Comment by Michael Fred Johnson on May 28, 2011 at 11:53pm

You can buy rolls of self adhesive aluminium foil-saves all the mess.

Comment by Penny Nelson on May 28, 2011 at 10:13am

Just finished my first build and put the piezo in a small block of wood & encased in silicon like Gustavo mentioned and the tone is amazing. Very fiddly job though and now have the issue of a very high action. Has anyone tried shielding to stop feedback? I was reading about it online... the poor mans version is lining the box the alfoil glued on with PVA glue.

Comment by Jantan ux on May 20, 2011 at 6:43am

If piezo and socket are soldered right the piezo works fine without buzzing.

Comment by Mike Whisenhunt on May 19, 2011 at 7:00am

I'm trying to get this piezo to work. All it does is buzz really loudly when i hold it. I just got the jack I have it hooked into at radioshack yesterday...boy things have gone up.

Comment by Gustavo sanchez on May 18, 2011 at 5:35am

Well ..... Now I am going to trun my back from this group at least in my first build. I will switch from Piezoelectric pickups for a couple of electromagnetic coil microphones I got from buzzers, they are almost as thin as Piezo pickups but the gain is much higher and no need to adjust much the signal while amplifying. I will do the same arrange as before, two conected in paralell below the bridge area for maximum gain.

Comment by Michael Fred Johnson on May 14, 2011 at 2:09am

Forgive me but this dinosaur is having bother with the technology.

I think this blurb should have gone with the photo of the under saddle p/u

Have used these homemade PVDF coax p/u's on my last two builds and have not had the problems of feedback and over sensitivity you can get with a piezo disc.

The downside is you need to use a preamp.

The first (Guinness box) has a built in Velleman K1803 preamp assembled from a kit.

No.14 I wanted to be accoustic with the option of amplification so it only has the p/u shown in the photo wired to a jack socket connected to a kit built Velleman K4102 pre amp to good effect.The tone ranges from quite a mellow sound to harsh and metallic 

 

Comment by Gustavo sanchez on May 13, 2011 at 6:32am

Bill : If that does not work ...you may also want to try to place the piezo directly under the bridge, I saw a acouple of videos and tutorials that the guys made a round semihollow circle of wood on which they place the piezo underneat, and the bridge on top of it. ..... the sound was loud & clear.

In my case because I did the neck/body out of a Large wood spoon, the roundness of the sppon actually fits inside the Cigar Box, and does not touch the lid of the of the box only on the sides, so I did placed my piezos inside the box below the bridge position, and so far the sound seems good for me ...

hope this helps

Comment by Bill Harbour on May 13, 2011 at 5:46am

Yea...I think I'm going to have to tear out what I've done and extract the piezo element.  I've learned a lot for my next build though.

Comment by MichaelS Country Boy Guitars on May 13, 2011 at 4:01am

Bill, I think you will find that the piezo will work better if you take it out of the plastic housing. Then you can mount it directly to the surface and insulate the back to de-sensitize it some if needed. I like the sound of them, they are different than a mag pickup and you should not expect a piezo to sound the same. Unique just like the 3 string cbg's.

Comment by Bill Harbour on May 13, 2011 at 1:55am

I've got a little LM380 (2.5w) amp that I built.  I'll give the guitar a try though that.

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