Ross Phaser

Ross Phaser 434ea9db98c8

 Yes, Modulation Monday is back with the Ross Phaser. It’s not for the feint of heart, but doesn’t require any JFETs, matched or otherwise. Instead it uses OTAs with 3, LM13700N (one for the LFO, two for the audio path). Should fit nicely in a 125B with top mounted jacks. Schematic for reference.

Earthquaker Devices Hummingbird V2

EQD Hummingbird V2 fc5f1f55af3a

 New Year, might make Modulation Monday a thing. We’ll see. Anyway, here’s the EQD Hummingbird V2. It’s derived from the Vox Repeat Percussion and now updated to use the 2N6027 in place of the obsolete 2N2646. There’s also a couple other improvements from the earlier version so a new layout seemed like a good idea. … Read more

Dylan159’s Boot Fuzz

Dylan159 BootFuzz 4ba8102f6dff

2023. How the heck are we still alive.. No matter. Let’s do another layout or two. This time, another nice, loud little circuit from Dylan159’s Unrealeased Circuits – From the source:Boot Fuzz. I found this simple old-school microphone preamp, and noticed the similarity with the Fuzz Face, also claimed to be based around a microphone … Read more

Dylan 159’s Blendy Buffoon

Dylan159 BlendyBuffoon 0fe51fe35b77

Next up from Dylan159’s Unreleased Circuits is the Blendy Buffoon. We’ve had a bunch of different blend/mix/loop designs up already, but this idea was still missing. Some may have stumbled upon an issue where you couldn’t use a basic blend circuit with the likes of Marshall Bluesbreaker or MXR Dynacomp. That issue is due to … Read more