What's on the workbench?

[steviejr92]

My 3rd gravitation reverb build (1st one didn’t work) just got all my resistors and socketed both my 1n5817 and voltage regulator into place so far so good! Still need to wait on parts should be coming in by Tuesday.

 

[DGWVI]

Just finished a bunch of drillin. Now, I gotta populate the boards

 

[warmoverdrive]

Just received my first PCB designs for a weird modded noise ensemble i've been prototyping between semesters. Really excited to put em together!

its ugly and I've already revised the design but i'm still stoked on the first attempt

 

[finebyfine]

...and I just realized there's no DC jack?

oh man so you HAVE to see the bunny? hate that so much lol

 

[steviejr92]

So I don’t know if this qualifies to be on this thread but since I got my spare parts to experiment with today I couldn’t help but want to build something. I’ve been running around all day and really couldn’t sit down long enough to solder anything. So since I already had the Proto built I figured I’d try my first shot at breadboarding. I decided to choose the el sol distortion to start my journey…..and my god did this open my eyes to reading schematics and how the circuit functions! Now I haven’t actually tried it to see if it works only because where I’m at its 1am and my girlfriend will kill me lol but I don’t think I’m going to be able to sleep knowing I have another circuit to try in the am!

 

[Robert]

Just for @HamishR

 

[Robert]

YAK?

Nah I don't think so... We may never know, they did such a good job sanding the part numbers off the ICs.

 

[Feral Feline]

Tell us how it tastes.

Bunny tastes like chicken, more "chickeny" than chicken.

I looked for the wascawy wabbit but didn't find any gutshots with bugs.

 

[HamishR]

OOooooooohh! I was just talking to Chuck about this one and he found a possible schematic on a Japanese website... It's a bit weird because it doesn't have a single V-ref, it has four sets of voltage dividers. And I knew it used LEDs for clipping - that distinctive sound! So if I clone it the first thing I'll do is swap those out for my patented blend of 1N4001s and 1N4148s.

I hope Chuck doesn't mind or the fella in Japan who traced it:

 

[Robert]

There are a couple components missing there, and a value or two off.

This one also has NE5532 where that schematic has MC1458.

Judging by his pics it looks like maybe there was some guessing going on with those.


This is the one I have here, no guesswork needed.


Still have to measure some SMD caps but I should have it wrapped up soon.

 

[Robert]

Ahh yeah, he's fairly open about the possibility of mistakes and guessing at the opamp.

(Courtesy of Google Translate)

"I've seen a lot of overdrive circuit diagrams, but there are circuits that I've never seen before, so I'm not sure if they're correct or not, but
the sound produced by the effector is almost the same as the original."

"The other one has the model number deleted, but the layout of the deleted character string, the shape of the package, and rumors on the Internet? Based on the above, I decided that it was the MC1458P made by Texas Instruments. "

It's a nice sounding pedal, now I want to try the DLX version.

 

[music6000]

Ahh yeah, he's fairly open about the possibility of mistakes and guessing at the opamp.

(Courtesy of Google Translate)

"I've seen a lot of overdrive circuit diagrams, but there are circuits that I've never seen before, so I'm not sure if they're correct or not, but
the sound produced by the effector is almost the same as the original."

"The other one has the model number deleted, but the layout of the deleted character string, the shape of the package, and rumors on the Internet? Based on the above, I decided that it was the MC1458P made by Texas Instruments. "

It's a nice sounding pedal, now I want to try the DLX version.

The Four Knobbie

 

[Robert]

My guess is that the 4-knob just brings the Low Cut trimpot up front.

This is the one I want to try next.

 

[HamishR]

Yeah I assumed that the four-knobby was the bass trimmer on top. What do you think of this one Robert? I really like it except for the LED sound. If the PCB was able to fit into a 1590B I think I will buy a few! I always like bass and treble the other way around from how he has them on the 4K though. No pressure though!

 

[HamishR]

Oh, and I believe the six-knob version is a more "modern voicing". Nah, gimme old fart voicing any time. What really impresses me about the Strawberry Red is that it sounds good at low gain and at high gain. In fact it almost seems to change character to do so. It's one of those rare pedals which has lovely mids but avoids sounding boxy at all.

Actually there are two things I want to change - the diodes and the brightness. A little more high end couldn't hurt. I am very much looking forward to this one. Thanks Chuck, thanks Mr PCB!

 

[MichaelW]

Looking forward to this one. I've never heard of it.
But it sounds like it's right in my wheelhouse.

 

[HamishR]

Btw I am hoping that I can put the bass cut on the top of the box as another knob. And if you do decide to do the six-knobby I will be into that also. The Strawberry Red is my favourite BJF pedal (in case you hadn't guessed) and I have built a lot of his pedals, usually so that I can change something. The One Control Honey Bee is pretty good too.

 

[music6000]

Something like this:

 

[Robert]

What do you think of this one Robert?

I like it, I'm looking forward to putting it back together and playing around with it some more. I like LED clipping, it's probably why I do like it.

The construction makes me absolutely cringe though... It's four little PCBs with tabs/slots put together like a puzzle, held together with solder bridges. If/when the hardware gets loose any movement is going to destroy the pedal pretty quicky.

I definitely plan to make the Low Cut control external, although it will likely have to go on the right side because of where it is in the circuit.

 

[mnemonic]

View attachment 29928

Just saw this one on the coming soon page, is there anything actually interesting going on with the circuit? I don’t know enough about tracing pedals to glean anything useful from the sample pcb layout picture.