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luvdunhill

What Are You Building Today

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Today I got my dad to breadboard his first circuit, using a GPIO pin off a Raspberry Pi 3 to blink an LED with a python script. Does that count?

Next up for him is a T2.

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T2 with DHT's!!  ;D 

Me I just did construction today as I finished all of the small projects I'd been neglecting for the past few weeks.

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I spent the day trying to cut a chunk of wood with a 30 degree angle. After a few tries, I am as close as 29.996. That's probably going to have to work.

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(makeshift board heater)

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Then there were three. Now need a jig to be able to apply the paste to the bottom side - perhaps a piece of plywood with a cutout?

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As you can see, the middle pin of the transistors and the tabs wouldn't flow. These are multilayer boards with that large copper area exposed. I also had to "reheat" the boards during the process. I am not confident I really got good contact on the j-hook trimmers. I will just apply hand solder to these parts likely.

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Actually I will get these made for me, but need to validate a few values. It was a pretty quick job, much faster than doing it by hand.

a plate wasn't viable because there are parts on both sides.

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So, if anyone is interested in some of these micro 11-turn trimmers I have decided to go with a different value and have a kings' ransom of 50 ohm left over :palm:

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Some random person from the other side of the world asked if I could fix a dead channel on his Y1.5 build.

 

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Had a couple of other issues to sort out but the dead channel part was easy.

 

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C8 ground doesn't appear to be soldered... 1st and 2nd pins from the bottom appear to have something bridging them as well.

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Here is a low pass filter board, utilizing above discrete opamp

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... And doing something useful. Any guesses on what? :)

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