Fumble boost 1590b

AceHyzer

Well-known member
Build Rating
5.00 star(s)
When JHS dropped the notadumble I picked one up. I didn't care much for the zendrive circuit, but I did really like the boost. It has been on my board since I got it, but taking up way too much space for a simple clean boost, so I was stoked to be able to get it into a smaller 1590b enclosure to save a bunch of space!

Since we found out after the fact that it's actually the BBC-1, I used the labels that dumble actually used on his BBC-1 circuit, Gain, and Depth. I especially think "Depth" describes what that knob does sonically, really well.

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It was a quick and straightforward build, though I did fry a J309 and didn't do much better with my second try. Must've been tired or something because I've done a lot of SMD soldering and have never fried one before. I was worried it wouldn't fire up but it did fire up just fine!
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It's a huge space saver on the ol' pedalboard. I've included a pic of it on my board with the notadumble above it so you can see just how much space I'm saving! Also, a leak of a handful of builds that I've never done build reports on because I'm bad at doing them, even though I should!

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Anyways, it sounds great. I did a side-by-side comparison and there was a very slight difference in tolerances of the depth pot, but with my depth pot turned down just a hair further than the original I was able to get it to sound identical. Very stoked to free up some space on the board!
 
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