Recent content by VivekMEHTA

Are C20, C21, C22 part of a High Pass or a Low Pass filter ?

See this : https://www.ti.com/lit/ug/tidu034/tidu034.pdf Baxandall Active VOLUME control

jwin615, szukalski The back to back decoupling caps are surely odd. The Vref opamp is also configured in an odd way And yes, the Asymmetric power supply and off Vref are funny things too But the rest makes some kind of sense Please do read the TI article on "Baxandall Active VOLUME control"

Please help me to understand that comment. Yes there seem to be some odd/vestigial stuff, and some interesting design choices, But the main concept seems to be very straightforward and "prior art" For example, see this : https://www.ti.com/lit/ug/tidu034/tidu034.pdf

I have entered the schematic into LTSPICE and done an analysis. Thanks to PEDALPCB for tracing the circuit and publishing the schematics.

I analysed the Sweet Honey pedal using LT SPICE, and figured out what the "Focus knob " does and how it does it. Please see https://www.facebook.com/groups/556445917712892/posts/24864029223194556/ Needs you to join that FB group.

I heard that the Colombo Pedals Rocker 83 is "Inpired by" the distortion section of a Rockman X100, But I feel it must be overly simplified, because it does not have a compressor and does not have Tom's "Complex filter" So I feel that the Rock Star Distortion could be a good clone of a bad...

Tom Scholz's Compressor with two release time constants In Patent 4627094 of December 2. 1986, Tom Scholz described a guitar compressor. He also highlighted an issue with the release times of the compressor. Tom described the ADSR curve of a guitar signal as follows: "On a guitar, the first...

Thanks Larry !

Hello everyone, I'm Vivek Mehta. About 3 years ago, I got interested in Rockman gear, especially the X100. I decided to study it with the goal to understand it, learn from it, make improvements and mods. It took me about 200 hours on LTSPICE studying actual measured data from 16 X100s before I...