Posts by profdc9@mastodon.social
(DIR) Post #ApTGCLOb2ofquuTGAy by profdc9@mastodon.social
2024-12-18T03:32:25Z
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@FediTips Deleting posts is deliberately used to delete unwanted replies as well.
(DIR) Post #ApY4SQ3FlvUZYOjpyK by profdc9@mastodon.social
2024-12-29T20:09:58Z
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@grickle It's how Roald Amundsen got to the South Pole. The fox is no fool.
(DIR) Post #AplGeppxS74zVRgYBE by profdc9@mastodon.social
2025-01-05T04:57:57Z
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@grickle On the internet, no one knows you're a werewolf.
(DIR) Post #Aq0yvsLmBjw0MjjIfY by profdc9@mastodon.social
2025-01-12T18:54:38Z
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@futurebird This sounds a little like Jorge Luis Borgeshttps://en.wikipedia.org/wiki/The_Library_of_Babel
(DIR) Post #ArDEYHPWJRhiUfk6ng by profdc9@mastodon.social
2025-02-17T14:38:19Z
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@futurebird Geometry has rules that will never change and will always be used. Taxes have arbitrary, always changing rules. It's like the child's game Simon Says where if you don't obey the right rule, you get burned. Many people don't want to have to think though, so understanding geometry or finance isn't going to help them.
(DIR) Post #ArFE3VixQyCqE25Adk by profdc9@mastodon.social
2025-02-18T13:42:12Z
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@futurebird Support local grocery chains because they are more responsible to your community. Walmart is not the bargain it used to be anymore anyways, so you will not miss the prices either. Walmart prioritizes a show of obedience to a tyrant over it's relationship to the diverse communities it serves. That leaves an opportunity for others.
(DIR) Post #As3MoSdufTnXJGCY1w by profdc9@mastodon.social
2025-03-14T18:15:21Z
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@davidrevoy You're a braver man than I.
(DIR) Post #AsM9NdxYOfmLPNjJpo by profdc9@mastodon.social
2024-07-16T23:17:58Z
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This is a #diy #RaspberryPi #pico #openhardware #opensource device I created for making your own #pc #gaming controllers. You can place buttons, joysticks, potentiometers, and rotary encoders onto a grid, and then assign them gamepad or keyboard functions. It was designed for starship bridge simulation games (e.g. EmptyEpsilon, Space Nerds in Space) to create custom controls, but it is a general joystick/gamepad substitute.https://github.com/profdc9/HIDPanel
(DIR) Post #AskU5QsOArzXRLczy4 by profdc9@mastodon.social
2025-04-04T13:29:40Z
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@stux With the 50% tariff on the Moon and the 417% tariff on Alpha Centauri we should be filthy rich in no time!
(DIR) Post #At7B3nvgL1lGIapVlw by profdc9@mastodon.social
2025-04-15T12:15:07Z
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@stux (1-x)(1+x)=1-x^2
(DIR) Post #AtPs4ZTbw7KNAg2esy by profdc9@mastodon.social
2025-04-24T12:41:53Z
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@futurebird Did you know when monad is spelled backwards it's "damon"? Coincidence? I think not.
(DIR) Post #AtQL91S8lDEZlcpRey by profdc9@mastodon.social
2025-04-24T18:07:20Z
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@davidrevoy You can not drain all of the purr out of a cat with a device like this. The purr always is replenished.
(DIR) Post #Au7OLYdUNw3c2IH5N2 by profdc9@mastodon.social
2025-05-15T10:24:23Z
1 likes, 0 repeats
@tk Is this a 4:1 Guanella balun (50 ohm side parallel windings, 200 ohm side in series)? Winding the two sets of turns couples their flux together, and the balun action is adversely affected. Each of turns should be on a separate toroid. Also, a 43 or 61 mix is generally used for transformers to get the maximum impedance.
(DIR) Post #AuXNiiNePbADoylPxA by profdc9@mastodon.social
2025-05-28T01:31:37Z
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@ricci Mastodon: the table where the oddballs gather in the lunchroom.
(DIR) Post #AudDH8sruX31J4WbWC by profdc9@mastodon.social
2025-05-30T21:02:41Z
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@stux https://www.youtube.com/watch?v=QrekzvY2KMc
(DIR) Post #AunhcJBviuG7Ys360W by profdc9@mastodon.social
2025-06-04T22:29:56Z
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@catandgirl I don't like this whole Pete Seeger reinterpreted as bloodthirsty capitalist. Now he will reinterpret "This Land is Your Land" as a song about the joys of being a landlord.
(DIR) Post #AvAsvK1doFYRbKJ8fg by profdc9@mastodon.social
2025-06-16T02:55:00Z
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@Ricardus In my amplifier project, I designed a very overdone power supply filter board to take out switching noise and RF.https://github.com/profdc9/PowerAmpAudio/tree/master/PowerCond
(DIR) Post #AvBgQtL5SYlPr65QY4 by profdc9@mastodon.social
2025-06-16T12:05:35Z
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@0xabad1dea My hovercraft is full of eels.
(DIR) Post #AvCu5RLfvRp9TmzFZI by profdc9@mastodon.social
2025-06-17T02:17:28Z
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@Ricardus It is a Class AB 300-400 W audio amplifier. There are detailed instructions at:https://www.github.com/profdc9/PowerAmpAudioIt has the amplifier itself, a board for a balanced to unbalanced input, a power conditioning board, and a soft start board (to prevent transformer current inrush). It's designed to have flexible part substitution which is detailed in the documentation.
(DIR) Post #AvCuEamYDnDvLKvDg8 by profdc9@mastodon.social
2025-06-17T02:19:06Z
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@Ricardus Very good, less than 0.1% at full power and 20 kHz, much less at normal power and more audible frequencies.