This Week on the Breadboard: The Celestial Boost

[steviejr92]

Ok this makes sense, that just helped me put things into perspective a little better. Turning the treble is more or less making the higher frequencies relevant in the harmonics that the GAIN is creating.

 

[Fingolfen]

Is the 2A switch a DPDT on on on?

 

[Chuck D. Bones]

S2A & S2B are the two halves of a DPDT ON-OFF-ON switch.

 

[Fingolfen]

S2A & S2B are the two halves of a DPDT ON-OFF-ON switch.

Thanks! I wanted to make sure.

 

[szukalski]

Man.. that Celestial Overdrive is the hardest layout I've tried yet. I was tempted to make the tone stack a breakout board

 

[Brett]

Man.. that Celestial Overdrive is the hardest layout I've tried yet. I was tempted to make the tone stack a breakout board
View attachment 54292

Nice looking layout, @szukalski! I laid this one out back in May it was a bit of a PITA. I never ordered boards, but my layout looks similar to yours.

Switch pads are slotted but don't show up in Eagle's export.

 

[szukalski]

Nice looking layout, @szukalski! I laid this one out back in May it was a bit of a PITA. I never ordered boards, but my layout looks similar to yours.
View attachment 54310
Switch pads are slotted but don't show up in Eagle's export.

I’m still not entirely happy with it. There are some tricky junctions which make it hard to be elegant. Yours looks great!

 

[Chuck D. Bones]

Nice looking layout, @szukalski! I laid this one out back in May it was a bit of a PITA. I never ordered boards, but my layout looks similar to yours.

Switch pads are slotted but don't show up in Eagle's export.

Nice layout, Brett, you even got the relay switching on there. The MP38A footprint looks to be undersized. Appears to be TO-18, should be TO-39.

Send me the schematic for review if you like.

 

[Brett]

Nice layout, Brett, you even got the relay switching on there. The MP38A footprint looks to be undersized. Appears to be TO-18, should be TO-39.

Send me the schematic for review if you like.

Thank you sir and you're correct, I used the wrong footprint. If I get serious about sending this one off to JLC, I'll get that updated and put the board through the same updated EDA treatment as a couple of the others I've shared with you recently.

Thank you @Chuck D. Bones!

 

[jimilee]

Daaaamn, there is a lot going on there. I'm anxious to hear it.

 

[szukalski]

I managed to build this during my lunch break, barely tested it (let alone swapping Ge diodes). She sounds great though and everything is working. I've been sitting on this PCB for over a month now..

 

[szukalski]

Another coffee break and I am loving this with OA7 diodes. So much that I already got a faceplate in the works.

 

[cooder]

Got this boxed up as well, great sounding drive with such a variety from the boost to high gain. First impression I dig the lower gain and boost settings on this a lot. So much to tweak that I will have to spend some serious playing time with it.
Very nice, thanks again for all the magic Sir @Chuck D. Bones !
I put two old school Mullard OA6 Germanium diodes in the Fuzz position of switch, had to mount them on underside of board as the buggers are pretty big and lay them beside switch which worked just fine.
Only downside is that the mojo factor of them is now well hidden from plain sight hahaha..

 

[szukalski]

Looking great there! I am digging mine.

 

[HamishR]

If PCB layouts for some of Chuck's designs are tricky you should try doing Vero layouts! I used to think I was pretty good at Vero layouts but Chuck's amazing designs can defeat me. I might try this one again.

 

[Chuck D. Bones]

Some of these guys (you know who you are) are so quick with PCB layouts that I don't bother with Vero on the complicated ones.

 

[HamishR]

Another coffee break and I am loving this with OA7 diodes. So much that I already got a faceplate in the works.
View attachment 57720

I think you should call it Complex Red.

 

[szukalski]

I think you should call it Complex Red.

It is a play on words. California Red is a sheep breed (there has to be a sheep theme), plus it's a nod to the designer's location (it would be an added bonus if he has bronze facial hair genetics), and it's a tasty wine variety!

 

[HamishR]

I understood the reference to where Chuck lives but I didn't know that it was a sheep breed. I thought there was only Merino. You learn something new... Very dry.

 

[Bricksnbeatles]

It would be nice if, as an added bonus, CDB’s parents were accused of being a communists during the post WWII Red Scare. And if he has a secret arboriculture hobby, with an affinity for propagating and tending to California Red Fir saplings.