Bring out yer Diptrace

I have zero interest in a mic pre at this point… but I think a DIY guitar rack system with a smaller footprint similar to the synergy stuff would be awesome.
That Synergy stuff looks interesting... I didn’t realize that existed, it’s like guitar racks 2.0 or something. Wild stuff!
 
That Synergy stuff looks interesting... I didn’t realize that existed, it’s like guitar racks 2.0 or something. Wild stuff!
Bruce Egnater design
Was first licensed to Randall as the MTS series, then Egnater released the first dual mods. Then licensed to Synergy.
Cool stuff. There were a few RM20s made that housed 20 modules in 10-12RU spaces.
There's also a few great modders out there, Salvation Audio being probably the biggest one.
 
You plan on doing any other 500 series preamp modules?… black eye? Or super Sonic dirt channel?… cough* cough *
Certainly not as a commercial product, but I am actually planning a Black Eye with a cabsim and a D.I. output as a one-shot solution for quick guitar recording because it's something I've personally always wanted. Probably won't be doing a lot of guitar-oriented stuff for 500 series though.

The way I’m choosing to read it is that a Neve 1073 mic preamp is right around the corner 😁

albeit with a tube added, because reasons lol
I am planning a couple mic preamps, but they will be original (tube) designs. There's enough Neve stuff out there, not planning on cloning anything.
 
Those look great @szukalski! As it turns out, I also have a gain changer in my current JLC cart and another one of dylan159’s designs, the Chewborg. Yours look great man!
I have a Chewborg in SMD from six months ago which I’m not happy with and will redo in through hole. It’s a tricky one for clean routing and the 7th control makes it awkward to find a nice 125B layout. I’m tempted to make it 1590BB combo with the PLLedal.
 
First time making a full 3D model of a board. Adaptation of @Chuck D. Bones mosfet drive/Cowpoker to get back in the swing of layout/jlcpcb production as I lead up to having a shop. Got the prototypes in and they work just fine, what a sweet drive pedal. Also got some relay bypass and Buzzaround boards (again based off Chuck’s schematic) in that I put a switch on to control the output buffer stage. Was very pleased all the boards worked after not doing anything like this for a year plus!


IMG_5733.jpeg
 
How does this work? You don't need the 9v battery anymore?

EMG sells a box that basically powers pickups via the ring contact, this is just a lot of power filtering with that, a voltage switch and a separate buffer.

 
New resonant LPF for onboard preamp applications:

LowTunedLPF.jpg

This version is for low tunings, with big enough cap footprints at C5 and C6 to allow using 2.5% polypro film caps in the money slots. and I made it easier to use parallel caps in those slots to get better tuning resolution, since this design can be very tweaky stability-wise.
 
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