Messages

This is the first in a four part series that walks you all the way through from creating a schematic to uploading GERBERS for production. I've watched bits of a few others too but this one will show you the basics.
I did decide to order from JLCPCB (they sponsor the guy's channel) but you don't have to.
https://youtu.be/sEGyNfBuPig

I'm loving all the feedback! You people are awesome!
I can't wait to get the first batch of boards and test one out. I'm all about finding mistakes or happy accidents! I'll make changes as needed and keep you all posted!

I understand, figured it was a long shot. If you do come across one just let me know.

Does that mean Brian couldn't find an extra for you?
I'll pay it forward and send you the one I got from him if you'd like.
Hopefully I'll have some new ones that'll work for me soon enough!

Oh yeah, and we added pads so that it can use a through-hole or an SMD 5457.
The through-hole ones are still out there but they're getting harder to find and a bit more costly!

That looks great! Good job!
Is IC2 the lfo? (with a jack that close there could be some audible ticking)

Thanks for pointing that out! I didn't even consider the proximity to the jack. I'm hoping it wont be an issue but we could always shove a few things around if necessary!

Love that etch! And the finish with the sparkle paint is top notch!

Oh yeah, and we added pads so that it can use a through-hole or an SMD 5457.
The through-hole ones are still out there but they're getting harder to find and a bit more costly!

I was also sad to see the Stage Fright go away. Luckily, I was able to give Brian a shout and get a leftover board from him. (Thanks Bean!)
I got thinking about it and decided that I'd like to have more.............
One thing that was always an issue was getting everything to fit just right in the enclosure. Holes have to be drilled very carefully or you'll run into problems. Also, I really like to use top mounted jacks whenever possible and it was definitely not possible here. I thought about having the layout redone using SMD versions of the 13700s (maybe all of the ICs) to save some space and shrink the board. As it turned out, that wouldn't have saved as much space as I thought and it would have made routing the traces a lot more difficult. But switching most of the resistors to 1/8W did the trick!
I worked with Richard Seidlitz of Airis Effects on the layout and told him about the changes I wanted to make. He knocked it out pretty quick and I've got a batch ordered up to test out.
The toggle has moved down a bit and it now switches up/down instead of left/right. The rate LED is below the control instead of above and the indicator LED is moved up to the top of the board in the middle.
Another change was to have the toggle select between 4 and 6 stages of phasing instead of 5 and 6. I get why Brian did his that way, so the original circuit's 5 stages could be available.
The board is still a pretty good size but with the changes we made, top mounting the jacks should now work out just fine.
The picture with the paper cutout is a little deceiving. It looks like it's a lot higher than it should be but it's sitting on top of a populated circuit in the enclosure. The jacks should just clear everything!

Great size for a two-in-one or even a three-in-one project....
See what boards you have laying around and find a couple/few that would play nicely together.....?
I did a handful of these using modded Big Muff and Rat circuits.
Maybe go more ambient/shoegaze and do some delay & reverb?

Cool graphics! Do you have any gut shots?

The one without the clipping diode toggle has already been sent out but I can open up the other one and snap a pic later.
I've kind of fallen out of the habit of snapping gut shots when I finish stuff. Not sure why, I always used to and I know we all like to see that stuff!

https://www.mouser.com/datasheet/2/698/ca3260-1528659.pdf

The datasheet looks like it's pretty spot on. Has the P-Channel MOSFET transistors at the input like the original.....

https://www.mouser.com/ProductDetail/Renesas-Intersil/CA3260EZ?qs=sGAEpiMZZMtCHixnSjNA6BdWKHpqVCsCRx%252BFr1Zah4E%3D

What chip did you use in your built? I know the original CA3260 is almost impossible to get.

https://aionelectronics.com/project/quantum-ibanez-mt10-mostortion/

I found some CA3260 from Mouser......

Built this one a little while ago for a guy who really wanted another without having to pay through the teeth for an original Boss.
I used the Corona PCB from Aion. There was a spot added to the board for a small ceramic cap in the feedback loop with the clipping diodes. The original OD-1 didn't have it and I wanted to have as many options as possible. I put the cap on a small piece of strip board with a 2-position DIP switch. Everything can be set to dead stock or the toggles and internal switches can be used for other options.

Finished these up a little while ago. Used the Quantum (Ibanez MT-10 Mostortion) boards from Aion.
The one without the clipping selector toggle was a request from a buddy who wanted one true to the original.
I tweaked the graphic and built another with the clipping selector.
It's a pretty cool sounding distortion and I really like the EQ section in this one!

Sounds like fun, I'm in. Definitely have a small backlog of things to finish up.
And I'll definitely be stealing Timko's idea of numbering them "Corona #__" on the inside of the cover!