Tonight I finally finished my processor! I designed a fish-shaped frame for it and called it ‘Fishman’. It’s shipping soon!
Yeah, all traces were routed. Only one step left, and it’s to design a frame for the processor.
Started working on a PCB! I placed the components in the right positions and started routing. Tonight I finished routing the fuzz, distortion, overdrive, and phaser! The project is almost done
Tonight I added footprints to all the components. Finally, I’m ready to start laying out the PCB!
Yes! All schematics are done! I finished the design for the delay. It is based on the Deep Blue Delay schematic.
It works like this: The input stage on the op-amp (U20B) acts as a buffer that mixes the clean audio signal with the processed sound from the feedback loop. The PT2399 chip digitizes the audio, cyclically delays it in RAM, and then outputs it back, with the delay time being adjusted by the RV24 potentiometer. Potentiometers RV22 (Repeats) and RV23 (Mix) are used to adjust the number of echo repeats and the balance between the clean and processed signals. The final op-amp stage (U20A) functions as an active low-pass filter, which smooths out the digital steps of the audio and gives the effect a warm analog sound. At the very end of the circuit, the C86 coupling capacitor cuts off the DC voltage component, while the R144 resistor bleeds residual static voltage to ground, preventing switching pops before the signal is fed to the output jack J2.
Finally, tonight i finished almost all pedal schematic. I did chorus and flanger pedal. I need to finished just delay pedal schematic and i will begin doing the pcb! The flanger schematic based on BF-2 boss flanger and work like that:The input audio signal is split at the op-amp buffer, where one part goes directly to the output, and the second is sent to a complex delay path. The MN3207 BBD chip and MN3102 clock generator create an ultra-short audio delay controlled by a multi-stage LFO based on TL022 op-amps. The Manual, Depth, Rate, and Resonance potentiometers provide full control over the waveform, its speed, and the depth of the “jet-plane” whoosh. The main feature of the circuit is the feedback loop (Resonance pot), which sends the processed signal back to the BBD chip’s input via an op-amp to create a powerful metallic resonance. The final stage mixes the dry and delayed signals, delivering a classic, aggressive flanger with a deep comb-filtering effect.
Also chorus based on Electro-Harmonix small clone chorus and work like that:The input signal is amplified by the IC1a op-amp input stage, then splits at point “A” into a dry path and a lower effect branch. An LFO based on the LM358 chip modulates the clock frequency of the CD4047 CMOS chip, which drives the MN3007 delay line. The depth switch (Depth pot mod) and the Rate potentiometer adjust the speed and intensity of the delayed signal’s pitch modulation. At the output, the time-altered signal from point “D” is filtered by transistor Q2 and mixed with the dry sound at the IC1b summing op-amp. The result of the circuit’s operation is that exact spacious, thick, and psychedelic analog chorus sound that became the signature of the grunge style. See you later!!!
Today I finished four pedals. I designed an overdrive, a distortion, and a phaser. I also finished the fuzz schematic and added a bypass switch.”
went deep in to fuzz schematic
I made a Fuzz Face clone but modernized almost half of full electronics
i just tried to learn how kicad works and how make something there
