Recent content by t1redhands

Found another outlier: this "modern DIY" approach to a BBD chorus by Demedash. Steve forgoes an active Sallen-Key filter for simple RC anti-aliasing. I haven't tested this schematic, but this would seem to indicate that impedance around a BBD might not be as important as I otherwise would...

I know this is a niche case, but this design is even more confusing: the infamous Korg CX-3 Rotary Emulator The top modulated line uses only BJTs in Sallen-Key filters (4 of them, including one with a resonance peak, I think?). The lower modulated line uses one BJT filter before the BBD, but...

Hello! I'm curious about the use of transistors in chorus schematics, specifically those used in active filters before and after the BBD. For example, here's an excerpt of Caesar Chorus (Walrus Julia) schematic (link to full schematic): To my ignorant eyes, these are Sallen-Key filters...

Yep, the "clean" path is the Neve 1073 preamp, or rather two of them in series (schematic) I'm not sure what technical name this arrangement of transistors might have, but it's also very similar to the preamp found in the Univibe (schematic) As far as achieving the goal of a "transparently...

Gotta find the right tool for the job: Home Mechanic Pedal Wrench

I like a challenge

Excellent stuff - that's inspired!

Rad, this gives me hope for my project!

Above and below the reference voltage (4.5v)? So that would mean that the 2-7v active filter is needed, I think, and the STOMPLFO output will likely be stronger than the stock LFO.

I'm curious about this process as well. I haven't done much studying of basic LFO circuits and their behaviors, but I think one of the points to consider is the voltage swing of the LFO cycle. The STOMPLFO datasheet has a couple of output filtering examples - a passive one for a 0-5v swing, and...

"Butt Rock" is the kind of stuff they play on those "alternative" radio stations where they play "nothing but rock."

Following this - I've been burned by JLCPCB's extra fees for not doing things correctly 😵

Yep, my experience as well. The tips on organizing the board according to "stamps" was very helpful when I was getting overwhelmed by ambitious projects. Otherwise there are YouTube videos that are much more informative and relevant for today's CAD programs.

The demos for this sound pretty dang rad. When this was released I immediately breadboarded the Trident pre-amp this is based on using Balmoral Electric's research. That alone is a killer boost/fuzz even without the transformer and pre-gain boost. Better than a standalone Univibe preamp imo.

Rad! I bet this would be excellent for recording DI into a cheap audio interface with low headroom.