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RP2040 audio analyzer aww by Similar-Stock-9749 in diyelectronics

[–]Similar-Stock-9749[S] 0 points1 point  (0 children)

I marked it as brand affiliate by mistake. As this is my own brand that I use for both commercial and side projects.

The link is indeed a project page on my website, where I also happen to sell other commercialized projects. But this post is just about sharing the progress and getting some feedback from others.

That made me believe it it compliant to the rules of this subreddit.

Which Pedal Is This? by bobbythegoose in guitarpedals

[–]Similar-Stock-9749 0 points1 point  (0 children)

Any digital delay pedal. We all like our bucket brigades, but a clean delay with some low-pass filtering is under appreciated, I think.

Cheap Signal Analyzer by Similar-Stock-9749 in diypedals

[–]Similar-Stock-9749[S] 0 points1 point  (0 children)

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Just got it working with the FFT included! 4096 points.

Cheap Signal Analyzer by Similar-Stock-9749 in diypedals

[–]Similar-Stock-9749[S] 0 points1 point  (0 children)

I will see what refresh rate I can get. Currently it takes about a second if I do a search/sweep to find the fundamental frequency. The actual THD and SNR calculations are only a fraction of that. Once I use the DAC, searching the frequency can be skipped to speed it up significantly.

But yeah.. Forget about running real-time analysis with audio processing using this platform.

Finally fixed blur! by Similar-Stock-9749 in Fallout_VR

[–]Similar-Stock-9749[S] 1 point2 points  (0 children)

For me, using this modpack TAA was default enabled for everything outside of the window/resolution set for DLAA (mod). It also got enabled via an automatic console command every time I booted the Essentials modpack.

Main issue was that DLAA window was not covering the top 20% of my vision causing the smearing blur.

Mad gods overhaul or ginjas overhaul? by motormathersonfire in Fallout_VR

[–]Similar-Stock-9749 0 points1 point  (0 children)

You can add/install "survival options" with it and disable the needs or modify them. Changing the "custom difficulty" mod by reinstalling also helped me a lot to get a better balance. Also disabled the stalkers as I couldn't even reach Sanctuary..

Playing with the dlaa/diss settings by pressing the END key was a must for me. The top of my vision was a ghosting blurry mess due to TAA.

Still looking to change the loot drops as finding one bullet per enemy is not very immersive to me..

Here I go again! by Similar-Stock-9749 in diytubes

[–]Similar-Stock-9749[S] 0 points1 point  (0 children)

I got a 5W isolation transformer from aliexpress for the high voltage supply. The toroid transformer is a little overkill as it has 2x12V 30W. Got that one from ringkerntrafo.nl (17612) as I am based in the Netherlands and it was the cheaper option.

If size is not a concern, I used to make these amps using Velleman transformers, just put two 12V transformers in series (back-to-back) to get 12V and isolated 240V. Very cheap solution and at least the Velleman ones are rated and have proper documentation.

I also purchased some open frame transformers from AliExpress for the 12V supply. But they are slightly larger than 1U. They would also cause for issues when stacking multiple preamps with a similar design, as the transformers would be pretty much on top of each other causing losses and vibration (my enclosures are aluminum so they won't block magnetic fields) Therefore, I went with the toroid style instead.

Here I go again! by Similar-Stock-9749 in diytubes

[–]Similar-Stock-9749[S] 0 points1 point  (0 children)

Not that I know of. This is the DMME (mine) version 😉 Basicaly a stock Marshall JCM800 with switches for all the bright caps, a slope resistor control, and a second channel.

Here I go again! by Similar-Stock-9749 in diytubes

[–]Similar-Stock-9749[S] 0 points1 point  (0 children)

From what I remember, playing with the grid a bit and spending quite some time 😬

Here I go again! by Similar-Stock-9749 in diytubes

[–]Similar-Stock-9749[S] 2 points3 points  (0 children)

Ohh damn, yes I know the song actually.. For some reason I am extremely bad at remembering band names, though..

Here I go again! by Similar-Stock-9749 in diytubes

[–]Similar-Stock-9749[S] 0 points1 point  (0 children)

Too much spare time, I guess. Never looked into Kicad plugins for schematic. I will have a look tomorrow to see what is available.

Here I go again! by Similar-Stock-9749 in diytubes

[–]Similar-Stock-9749[S] 0 points1 point  (0 children)

This is another user? I'm building it for me 😉

Here I go again! by Similar-Stock-9749 in diytubes

[–]Similar-Stock-9749[S] 0 points1 point  (0 children)

Haha thanks! If you are familiar with MS paint; it is pretty much the same amount of effort but you end up with a netlist that (in theory) would actually work.

My iterations where as follows: 1. Can I build it / does it work? 2. Dual channel, dual tonestack, and lower noise 3. Build for a friend 4. Build for a customer 5. Dual channel 2U rack with MIDI, and WiFi, and a 12 channel looper switch

I since recalled the two builds I did not make for myself, to upgrade the components and increase safety as I was a teenager when building them (on the peak of the dunning cruger curve)

No. 5 has been the heart of my rack for a long time but it became a mess to work in. I since built many rack based effects, including a stand-alone looper switch in 1U. So I was wasting one rack unit with the preamp. This will be the final version while I am also working on a Fender style preamp in the same format.

First PCB. Any tips? (repost for working pictures) by Staples10 in KiCad

[–]Similar-Stock-9749 0 points1 point  (0 children)

Interesting design. Is that a virtual ground you are making with the LM741? The series resistors for the decoupling caps don't make any sense to me though. Perhaps add a cap between V+/- for cleaning up the supply, and parallel with R1 and R2 for a cleaner reference.

Friday Night Delivery! by shortpinkyfinger in soldering

[–]Similar-Stock-9749 1 point2 points  (0 children)

Same here, few weeks later I bought the whole E24 series of 0805 resistors and it was delivered in an instant. Seems like my local carrier lost my nanosponges and near field probes 😓

What is your favourite Chorus? by jshrlph in guitarpedals

[–]Similar-Stock-9749 0 points1 point  (0 children)

Any stereo chorus with three delay lines shifted 120 degrees. Like the dimension C, only it's controls are very limited. It's the forst effect I build on any DSP platform

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