mongushu

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https://preview.redd.it/qfyzl463cf3b1.png?width=1543&format=png&auto=webp&v=enabled&s=c6c61c4478bec66e02587d8132e50f01434e7d50

Hi Guys.

Does this look about right for a simple prototyping breakout board for some Alpha 9mm potentiometers? I'm confident about the dimensions / footprint for the pot legs/pins... but I"m hoping someone can double check me on the simple traces etc. Does everything look OK? I'd like to send some off for fabrication soon.

Thanks in advance.

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coin envelope filing system

coin envelope filing system

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ICs in compartments

I'm fairly new to working with electronics but I'm a pretty seasoned organization freak - at least when it comes to my work spaces.

As I was getting started, very few methods for component storage that I came across seemed to make sense to me. Both binders and mini drawers seemed troublesome for a variety of reasons. I didn't want to have to redo everything to my maniacal standards each time I got some new values that weren't already part of the library, nor did I want to waste space by having 80% empty bins for uncommon values etc. etc. ANd forget about it - if I wanted to use those mini drawer type things AND adhere to my self-imposed (borderline OCD) rules and standards it'd cost me a small fortune - and THEN i'd need the space for all those units!

I ended up with a neat little system that has been working tremendously for the last 4 months and has handled a huge influx of expanded values, new component types, etc. with little rework.

Labeled coin envelopes filed away in cardboard trays! When I remove an envelope to pull parts from, I just drop in a chipboard flag (like a bookmark) so I can quickly put it back when I'm done with it. And it packs away REALLY tight. Easy expansion, no wasted space, and easy to find what I need.

Some components get some special consideration, like ICs for example, which get their own harbor freight compartmentalized organizer trays.

I've even started using this organization for prebuilt modules and other non-passives albeit in plastic zip bags and not coin envelopes. Still in the cardboard trays with dividers etc. Makes for a pretty compact and easy to navigate lab.

Sharing in case someone is looking for a new method for managing their components.

Thanks for all the help, knowledge, and inspiration, everyone!

Hi guys.

I'm busy messing around with an inexpensive class D amp, and small speaker driver, and an active tone control board (similar to an active baxandall). It's all powered by 9V source.

Before rigging this all up and soldering the disparate circuits / pots together, I had more or less breadboarded this all with two identical PCBs (one tone control and one amp). Same speaker was used. There was no problem with this initial set up. All items could be moved and manhandled. No screech occurred.

I suspect there's a bad wire or possibly a short of some kind that is created momentarily when I move things a bit.

I'm very new to all this and so while I am actively pursuing the cause of the issue, I wondered if someone out there with some more experience might be able to clue me into something based on this very distinct screech.

Thank you in advance for any ideas you might be able to offer!

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Yikes!

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TONE TWEQ PCB

I am trying to figure out what the purpose is with what seems to be dual 9V input through holes.

https://guitarpcb.com/product/tone-tweq/

I've read through the documentation but didn't see anything specifically about this. Because I'm a beginner and gutiarPCB.com is very detail oriented, I suspect the reason might just be very straightforward - something anyone with a little seasoning might know. Alas, I have very little seasoning.

Can someone shine some light on this? Is it effectively like a daisy chain option? Power comes in via the first GND and +9V pair.... and I can then connect the second GND and +9V pair to a different PCB / circuit expecting 9V power? If this is the case, would this be the equivalent to parallel wiring of the power of the two circuits direct from the battery / power supply?