“Up, Down, Daddy!” / Pearl OC-07

RobotZombie23

RobotZombie23

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www.delykpcb.com

"Up, Down, Daddy!" PCB - delyk PCBs

My daughter melts my heart when she asks me to "Up, Down, Daddy!" when throwing her up into the air and catching her. I figured this was a perfect name for an octaver with 1 octave up and 1 and/or two octaves down.
www.delykpcb.com www.delykpcb.com

I made one of these boards a couple years ago. I want to make another since I think I'm better at making pedals now. The thing with this one is that its really close quarters when building it. it's a real PITA. Plus it's been sold out for a while. Is there any other board makers with this circuit? (Pearl OC-07) Or maybe someone can fire up KiCad and whip something up? I'd buy one. I don't think this is the circuit to try and learn KiKad with. I really like the sound of it before a nice fuzz...nice and doomy
 

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RobotZombie23 said:
www.delykpcb.com

"Up, Down, Daddy!" PCB - delyk PCBs

My daughter melts my heart when she asks me to "Up, Down, Daddy!" when throwing her up into the air and catching her. I figured this was a perfect name for an octaver with 1 octave up and 1 and/or two octaves down.
www.delykpcb.com www.delykpcb.com

I made one of these boards a couple years ago. I want to make another since I think I'm better at making pedals now. The thing with this one is that its really close quarters when building it. it's a real PITA. Plus it's been sold out for a while. Is there any other board makers with this circuit? (Pearl OC-07) Or maybe someone can fire up KiCad and whip something up? I'd buy one. I don't think this is the circuit to try and learn KiKad with. I really like the sound of it before a nice fuzz...nice and doomy
Click to expand...
if you don't really care about the octave up, PPCB Ocelot (boss OC-2) sounds very close.

If you need the octave up, i only know this project. I'm sure it will get back in stock someday, you might need to wait a couple months.

Did you try to send a message to Klaus at musikding, to ask when it will be back in stock ?
 
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I built it, I like it pretty good. There’s a tag board layout for the OC-2 but it’s a huge build. I built it for someone that never paid me. Bastard
 
This does look pretty interesting. I might try something in KiCAD in the next week or two.

If I did, I would do the layout with SMD parts and just have it PCBA'd by JLC, though. With SMD it'd be pretty trivial to fit it in a 125B enclosure. I guess I could make it with the smallest part as 0805 and use the hand-soldering footprints, if people still really wanted the full boutique hand soldering experience. :-). For me, I build pedals for my friends and family who play (I don't even play guitar any more!) so often build 3-4 copies and the hand soldering just gets too repetitive. And even if I'm gonna hand solder, once you've gotten used to SMD parts it's so much faster to build SMD vs through-hole, even as an old guy with bad eyesight like me.

I'd share the gerbers, if that's not too frowned upon for taking business away from Mr. Shop Owner, or I could order a couple more assembled and be happy to sell some extras at cost+shipping. I would estimate that at around $12-15 before shipping since it'll be small quantity so the setup costs end up being a pretty substantial part of the whole, plus tariffs and shipping really jack up the prices. Looking thru the schematic, it'd probably be a 4 layer board, too. I've started using 4 layer boards with JLC for anything complex/high part count since it's so much easier to route and not that much more expensive.
 
z2amiller said:
This does look pretty interesting. I might try something in KiCAD in the next week or two.

If I did, I would do the layout with SMD parts and just have it PCBA'd by JLC, though. With SMD it'd be pretty trivial to fit it in a 125B enclosure. I guess I could make it with the smallest part as 0805 and use the hand-soldering footprints, if people still really wanted the full boutique hand soldering experience. :-). For me, I build pedals for my friends and family who play (I don't even play guitar any more!) so often build 3-4 copies and the hand soldering just gets too repetitive. And even if I'm gonna hand solder, once you've gotten used to SMD parts it's so much faster to build SMD vs through-hole, even as an old guy with bad eyesight like me.

I'd share the gerbers, if that's not too frowned upon for taking business away from Mr. Shop Owner, or I could order a couple more assembled and be happy to sell some extras at cost+shipping. I would estimate that at around $12-15 before shipping since it'll be small quantity so the setup costs end up being a pretty substantial part of the whole, plus tariffs and shipping really jack up the prices. Looking thru the schematic, it'd probably be a 4 layer board, too. I've started using 4 layer boards with JLC for anything complex/high part count since it's so much easier to route and not that much more expensive.
Click to expand...
I've given away several gerbers here. @PedalPCB doesn't sell anything like that, I'm sure he won't mind.
 
I have a layout done and routed. 15 "extended" parts for $45 though, yikes! I'm going to try to play some golf and get the extended component count down (putting components in series/parallel to get the same value as a 'basic' part, etc) but might have limited success since the layout is pretty packed already. Oh, and of course, who knows if the first iteration will work!

If you've never done JLC PCBA before, every SMD component that is not in a small-ish catalog ("small" still being like 1000+ items) has a $3 setup cost to load the reel on the pick and place machine. So for small-run stuff the goal is often to trade board space/simplicity for putting like 3 100nf capacitors in series to make a 33nf capacitor because you're already paying to place 100nf capacitor somewhere else. If anyone else is interested either in the gerbers to hand solder it (god help you) or an assembled board, drop me a message!
 
z2amiller said:
I have a layout done and routed. 15 "extended" parts for $45 though, yikes! I'm going to try to play some golf and get the extended component count down (putting components in series/parallel to get the same value as a 'basic' part, etc) but might have limited success since the layout is pretty packed already. Oh, and of course, who knows if the first iteration will work!

If you've never done JLC PCBA before, every SMD component that is not in a small-ish catalog ("small" still being like 1000+ items) has a $3 setup cost to load the reel on the pick and place machine. So for small-run stuff the goal is often to trade board space/simplicity for putting like 3 100nf capacitors in series to make a 33nf capacitor because you're already paying to place 100nf capacitor somewhere else. If anyone else is interested either in the gerbers to hand solder it (god help you) or an assembled board, drop me a message!
Click to expand...
I’ve done pcba before but just done resistors, diodes and some ICs and ceramic caps- always been unsure if film caps can just be switched for mlcc.
Have you used JLC PCBA for electrolytic?
 
LukeFRC said:
I’ve done pcba before but just done resistors, diodes and some ICs and ceramic caps- always been unsure if film caps can just be switched for mlcc.
Have you used JLC PCBA for electrolytic?
Click to expand...

Yeah, I've used them for electrolytic (SMD) assembly without any trouble. Make sure you filter on 'Economic' when you're searching for electrolytic parts -- I think there are some brands that use kind-of nonstandard reels so they don't qualify for the economic PCBA assembly. There aren't any "basic" electrolytic caps, though, so every one of those is a $3 'extended' package hit, so I'll often overspec to save money (e.g. use two 100uF's instead of a 100uF and a 47uF).

For film caps, I've mostly replaced them with MLCC if there's a C0G/NP0 version. There are (in stock) C0G caps up to about 220nF in 1206 package size so in most of the builds I do I replace almost all of the film caps with C0G MLCC. For the bigger stuff I leave the through-hole footprints and hand solder them. (honkin 1uf wima/etc)
 
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