CBG wiring & electronics.

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CBG wiring & electronics.

Want to plug that thing in? Here's a place to share ideas about pickups (Both magnetic and piezo) and wiring in volume and tone control, the best options in output jacks, and more!

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Discussion Forum

old telephone handset carbon microphone use in CBG

Started by Darryl Tuttle. Last reply by David Clewell on Wednesday. 6 Replies

i have an old  telephone , has the old fashioned handset,  one that you can unscrew the mouthpiece and take out a round michrophone...can you use this for a pickup in a cbg? if so, is it worth the…Continue

Simple OnBoard JFet Preamp for Piezos

Started by BrianQ.. Last reply by Jonno on Wednesday. 23 Replies

Don't forget to Solder all…Continue

Six pole pickup on a three string guitar.

Started by Slow Blues Dani & Ol' Grey Bear. Last reply by Paul Craig Aug 12. 23 Replies

Hi folks.Just trying to get my head around pickups and wondering about the benefits of a three-string guitar using a three pole pickup. Am I wrong in believing that each pole of a pickup reads to the…Continue

Rattle and Less Hum

Started by Gordon Cooper. Last reply by Fomhorach Aug 6. 26 Replies

There's a lot of 60 Hz hum in my acoustic/electric dulcitar. The amp runs on a battery, so there's no wall-wart leakage, at least not directly. Besides wearing a wrist-mount grounding strap that…Continue

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Comment by Dave Lynas on August 6, 2016 at 5:52pm
Thanks Paul. I do sand the area I will solder to. And use plenty of flux.
Comment by Fomhorach on August 6, 2016 at 12:01pm

I used a couple of layers of foam filled double sided tape, right onto the inside side wall.

Comment by Paul Craig on August 6, 2016 at 11:53am

Dennis U - I think most people attach their piezo to the resonator(inside of the bowl) with silicone or double sided tape rather than attached to wood and then attached to the bowl. You'll get less resonator influence with the wood block method. Just depends on what tone your after.

If want to use the wood block method, then the block will need a flat area to attach to or you'll need to make the block curved to fit the bowl. Silicone may not hold for long, I would use a couple drops of superglue so you can remove it later if you need to.

Comment by Paul Craig on August 6, 2016 at 11:39am

The soldering thing can be tricky, Both the wire and pot need to be clean and the protective coating removed from the area to be soldered on the pot. Sandpaper works fine.

The are on the pot does need to be heated for the solder to stick good enough, so I always use the side instead of the back so as not to damage the pot. Your soldered joint shouldn't have a balled up mess look to it( a cold solder joint), it should have a even flow puddle look to it. Always tug at the wire after it cools to make sure it's done.

Comment by Denis U on August 6, 2016 at 11:37am

I really like Duck's method for piezos and it seems like the more I know, the more questions I have. I am thinking about making a resonator using hand made box and a stainless steel dog bowl like this one

I'm thinking about using a biscuit bridge with the piezos in the base as Duck described. If I put a thin layer of silicone on the base of the bridge, will that interfere with the resonating that I hope the bowl will give me? That  leads me on to wonder where the sound comes from. If I make the the top of the box thicker than I'd expect to find on an standard cigar box, will that cut the acoustic sound, or is the sound going to be produced by the bowl to such an extent that the bowl produces overcome the wood thickness?

Comment by Paul Craig on August 6, 2016 at 11:28am

Fomhorach - You'll want to wire the piezo's in parallel. They are high impedance pickups, so wiring them in series makes it worse.

Comment by Thomas "Duck" Petry on August 6, 2016 at 1:45am

Thanks to all for the comments on my build.  I've been really happy with the double piezo set ups, though I must admit I tried a P-90 and really love the sound it gives.  When I do the block mount with the piezos and pot them in with the clear silicone I use a putty knife and put a thin layer across the whole back side of the oak and let it dry so when it's set in place on the box it prevents it from sliding without gluing it to the box, simple and works well.

Here's a picture of the P-90 build. I really like how it came out.

Comment by Fomhorach on August 5, 2016 at 8:14pm

Great pictures duck.

Need to try this sometime. Maybe my next build. Planning on a 26-27 inch 4 stringer (waiting on my T profile bar) but I can drive forwards just now and create a nice bridge just like this. Are your pez's connected in parallel or series?

Comment by Dave Lynas on August 5, 2016 at 7:36pm
I've been ganging my wires for grounds and doing it with one joint. Les times heating the pot. Seems to work good.
Comment by Wayfinder on August 5, 2016 at 6:31pm

Yup Dave, that's how I started out too, and burned out a couple of pots.  Then I watched some YouTube on soldering pots and found the best way is to touch the solder to the pot then the soldering iron to both.  The solder liquifies, very quickly transfers heat to the specific area around the solder and adheres to the pot quickly.  The idea is to remove the soldering iron as soon as you get enough solder on the pot so that no more heat goes to the pot.  To be 100% safe (although I never do this) you can very lightly clamp a vice clamp around the pot to act as a heat sink... but I'm not sure that's really necessary. 

 

It is important to let the pot cool before applying additional solder points.  Since I'm almost always working with either 2 volume controls or a volume and tone, I set both up at the same time and alternate between the two-- working on one while the other is cooling.

 

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Discussion Forum

old telephone handset carbon microphone use in CBG

Started by Darryl Tuttle. Last reply by David Clewell on Wednesday. 6 Replies

Simple OnBoard JFet Preamp for Piezos

Started by BrianQ.. Last reply by Jonno on Wednesday. 23 Replies

Six pole pickup on a three string guitar.

Started by Slow Blues Dani & Ol' Grey Bear. Last reply by Paul Craig Aug 12. 23 Replies

Rattle and Less Hum

Started by Gordon Cooper. Last reply by Fomhorach Aug 6. 26 Replies

Brass pickup covers?

Started by Simon Cartlidge. Last reply by Fomhorach Aug 5. 6 Replies

First wiring job . !

Started by Philip Hale. Last reply by Philip Hale Jun 20. 28 Replies

No Output and Not Sure What to Do...

Started by Brian Revels. Last reply by Paul Craig Jun 8. 5 Replies

Not Sure Where All the Wires Go...

Started by Brian Revels. Last reply by Paul Craig Jun 8. 6 Replies

Buzzing Tone From Pre-wired Kit

Started by Brian Revels. Last reply by Wayfinder Apr 17. 7 Replies

Wiring Grounds...

Started by Brian Revels. Last reply by Denis U Mar 10. 6 Replies

Stuck. How do I attach the piezo discs?

Started by Slow Blues Dani & Ol' Grey Bear. Last reply by Thomas "Duck" Petry Jan 13. 45 Replies

Winding/building a flatpup humbucker

Started by Robert Killen. Last reply by Wayfinder Jan 2. 7 Replies

2nd wire added to ground wire.

Started by Jon Leslie/Runaway Veal Music. Last reply by Jon Leslie/Runaway Veal Music Dec 18, 2015. 2 Replies

4 conductor humbucker color codes

Started by Don Tucker. Last reply by Don Tucker Dec 16, 2015. 2 Replies

Voltage question

Started by Monterey. Last reply by Denis U Aug 28, 2015. 7 Replies

Homemade Pickups

Started by Monterey Aug 22, 2015. 0 Replies

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