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1st CBG and matching CBA

I've built a few electric guitars and a 5e3 clone valve amp so now I'm building a CBG and matching CBA. I have the cigar boxes (Cohiba) and an old 24.75" scale length neck in my collection.

I have all thge parts ready and have starting marking up (pics attached).

Will usexa couple of piezo pups under the bridge and blended with a humbucker in the neck position. The amp will use a Ruby variation. Searching for a high quality, suitable speaker driver to fit the box whilst providing a decent frequency response.

Starting pics attached.

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Permalink Reply by Korrigan on January 28, 2018 at 7:32am

Looks like you're off to a great start Mark!

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Permalink Reply by Grandpa on January 28, 2018 at 10:38am

Mark, good looking start. As for speakers, can't really advise you. I'll tell you that the Eminence speakers that came with my Foot Note amp kit sound pretty good to me, and others have commented positively on Eminence speakers within these forums.

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Permalink Reply by Mark Taylor on March 17, 2018 at 3:25pm

Finished the CBG. Just need strings and setup. Photos attached. One of the pics shows the brace built for the middle with the two circular cutouts where I buried a couple of piezos in hot glue for under the bridge.

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cbg03.jpg, 564 KB
cbg02.jpg, 849 KB
cbg01.jpg, 980 KB

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Permalink Reply by Korrigan on March 17, 2018 at 5:25pm

She's a beauty Mark, well done!

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Permalink Reply by Paul Craig on March 18, 2018 at 7:20am

The CBG looks great. What Ruby variation for the amp?

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Permalink Reply by Mark Taylor on March 18, 2018 at 11:26am

I bought the blank circuit board from Tayda Electronics and sourced the parts locally. I found a LM386N-3 on eBay in Oz to give me the full 1W.

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Permalink Reply by Timothy Hunter on March 18, 2018 at 9:03pm

Another Aussie, great. where did you get the boxes Mark? I'm having trouble finding boxes in Brisbane.

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Permalink Reply by Paul Craig on March 19, 2018 at 10:03am

That's a good chip. I like the Ruby amp and I made a dual chip amp design based on the Ruby amp and Trotsky distortion pedal that's like a Ruby amp on steroids.

I also like to use a Ruby "head" as a preamp through a 20watt PA amp a friend gave me into a 15" speaker cab.

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Permalink Reply by Mark Taylor on March 25, 2018 at 10:43pm

Both the boxes were sourced on eBay. Agree they're hard to get. I got lucky.

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Permalink Reply by Mark Taylor on March 24, 2018 at 5:00pm

Finished the CBA and strung up the CBG and intonated. All good. Very happy with the speaker which is a Visaton KT100-V 8 ohm. I chose it because its frequency response was very close to a 'normal" larger guitar amp driver. Great bottom end and none of the tinny sound.

I could add brass corners to the front of the amp. I cannot put them on the back due to the sliding door (lid). What do you think?

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