Ibanez BC-9 Bi-Chorus

[Bio77]

I friend of mine asked me to make an Ibanez BC9 for him.  When I started looking around, I was surprised that there wasn’t a whole lot of information and nobody had ever done a DIY version of this circuit.  Luckily, Aentons has the original unit and was super awesome enough to send me a bunch of pictures and answer questions (thanks Aentons!).

The BC9 is a CS9 with an extra LFO.  On my version I added a vibrato (dry-cut) mod.  The controls on the B side are for the standard CS9 LFO and the controls on the A side are for the second, faster LFO. 

I think the layout came out great. I finally have a good system now.  I started with the art file and then took the drill template into KiCad to start the layout.  I also placed the all the jacks and footswitch in KiCad.  So, I didn’t end up with any surprises this time. 

[jimilee]

Looks really cool. The video won’t play, it comes up as an image when I click the YouTube link.


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[blackhatboojum]

Hot damn!  That is awesome!

[Thewintersoldier]

sick John, this is one I'm gonna have to build, would be amazing in a 1590bb with the mode switch as a footswitch.

[Bio77]

Thanks guys!

sick John, this is one I'm gonna have to build, would be amazing in a 1590bb with the mode switch as a footswitch.

Hmm, I don't know if the Vibe mod on a foot switch would be that satisfying.  It sounds different, but not drastic enough for a wow moment in a song.  What would be cool is to add a foot switch to add in the A LFO.  This would be easy enough to implement.

[gordo]

Killer vid.  I like that and have never heard of the original.  I'm amazed by how much gear has come and gone and stayed under the radar.

[jimilee]

Really nice sir.


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[Aentons]

It turned out great. Happy to help where I could. The vibe mode sounds awsome

[zombie_rock123]

Amazing looking PCB layout and love the finished piece! Super classy

[benny_profane]

Incredible work in and out, John! That layout is fantastic—great job! I'd definitely like to build one of those. Where did you pick up those knobs? The silver center is a nice touch to the 1900.

[Bret608]

Super nice! That is nuts that you fit all that in a 125b. I still have to build that CS-9 board you sent me. Just need to get through my daughter's graduation and other end-of-school year activities and I'll have some breathing room to finally dive into it!

[Bio77]

Thanks everyone!

It turned out great. Happy to help where I could. The vibe mode sounds awsome

Yeah, that was a great idea, you had there    Thanks again for the pics, super helpful.

Incredible work in and out, John! That layout is fantastic—great job! I'd definitely like to build one of those. Where did you pick up those knobs? The silver center is a nice touch to the 1900.

I got the knobs at SB.  I just checked and they are $1 a piece I don't remember paying that much, maybe they went up. 

I'm happy to send out boards to anyone that wants one, just PM me with the address.  I just ordered more, so, I can get them out in a few weeks. 

Super nice! That is nuts that you fit all that in a 125b. I still have to build that CS-9 board you sent me. Just need to get through my daughter's graduation and other end-of-school year activities and I'll have some breathing room to finally dive into it!

Yes, it was a tight squeeze.   What's really nuts is that the original is all this on a single sided, hand drawn board! 

[Invertiguy]

Amazing work! That thing looks and sounds incredible, and that layout is something else!

[Paradox916]

Nice work, I’m a sucker for a good chorus.


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[nzCdog]

Wow.. Sounds great, great prohect! Congrats 🙂