This week on the Breadboard - FET / Germanium Boost

[Chuck D. Bones]

Nice vintage look!

 

[temol]

That was the intention

 

[Sturdag Lagernathy]

Man, I really need to get into eyelet boards. They always look so great! (Your board looks especially good btw, Temol..)

 

[temol]

Finished.

 

[Chuck D. Bones]

Looks great!
Can we get a peek at the insides?

 

[JamieJ]

Looks fantastic @temol - always love your enclosures.

 

[temol]

Can we get a peek at the insides?

sure

 

[Chuck D. Bones]

SMD on a turret board, now that's a cool technology mash-up!

 

[szukalski]

@Chuck D. Bones , do you have any objections if I open source this (or any of your designs) and distribute it under a Creative Commons license?

Creative Commons — Attribution-NonCommercial-ShareAlike 4.0 International — CC BY-NC-SA 4.0

 

[iamjackslackof]

I hope so, I'd build one in a second if those Gerbers get posted!

 

[Chuck D. Bones]

Once you verify the board, then yes, you can distribute this design under CCL.

 

[szukalski]

The boards for this came in today and I scrapped one together over my lunch break with a MMBF5457 and a higher gain 1N1304. The 5 minutes playing were really rewarding, what a lovely design. I look forward to getting into it again this evening!

The voltage measurements were in the same ballpark as your schematic. I don't think it makes sense to amend with a trimpot.

I will do a little revision on the board labeling, then will get it up on Github under CCL. Really appreciate the chance to share forward these gifts to the community.

 

[Cybercow]

The boards for this came in today and I scrapped one together over my lunch break with a MMBF5457 and a higher gain 1N1304. The 5 minutes playing were really rewarding, what a lovely design. I look forward to getting into it again this evening!

The voltage measurements were in the same ballpark as your schematic. I don't think it makes sense to amend with a trimpot.

I will do a little revision on the board labeling, then will get it up on Github under CCL. Really appreciate the chance to share forward these gifts to the community.

Nice work on that PCB. A direct link to its Gerbers when they're available would be great! GitHub is still a navigation challenge for me.

 

[szukalski]

Released under CCL for anyone to enjoy:

GitHub - szukalski/pedal-texel

Contribute to szukalski/pedal-texel development by creating an account on GitHub.

github.com

There are two gerbers, both are the same except the JLCPCB one has a location on the back for the production run number.

 

[Feral Feline]

Thank you Chuck D Bones and Szukalski!

 

[Cybercow]

Plus 1 on the "Thank you Chuck D Bones and Szukalski !"

 

[szukalski]

Thanks again Chuck. I’m really enjoying this pedal, it’s low noise and works well after other drives.

 

[iamjackslackof]

Let me also say thanks Chuck and Szukalski! Got my shipping notification from JLCPCB, can't wait to get 'er built!

 

[HamishR]

I just built one of these with Mr Szukalski's PCBs and it sounds great! I used a 2N5457 and a Russian MP38 with an HFE in the 40s. My Casino loves it! I really like the middle position on the switch - the deepest sounding one. Would it be possible to make one of the thinner sounding ones more treble booster sounding? As you know I love that honking Rangemaster sound! I suspect it might affect the entire circuit but I'd love this circuit with a treble booster honk...

 

[Chuck D. Bones]

Would it be possible to make one of the thinner sounding ones more treble booster sounding? As you know I love that honking Rangemaster sound! I suspect it might affect the entire circuit but I'd love this circuit with a treble booster honk...

I'm looking into it.