the Hearth 
@Felthry@awoo.space
- Pronouns
- for Fel: It/its or they/them/themself. For Rose: Zhe/zhir or she/her.
- Gender
- your guess is as good as mine
- Timezone
- UTC-8 or UTC-7 (DST)
Bot
Plural system of three, Felthry, Alaric and Rosemary. We'll sign posts with a -F, -A, or -R.
Autistic, 20-something, anxious mess
Please introduce yourself before sending a follow request.
#FelthrysVGMSelection for my music picks.
Current avatar by @hi_cial
Joined May 2017
the Hearth
boosted
boosted
Capitalist philosopher: The first rule of economics is that there's not enough for everyone.
Me:
*researches the amount of used land on the planet*
*researches the yearly amount of wasted food*
*finds a list of some patents that would be very helpful for public use*
*acknowledges massive technological advancement in manufacturing*
*is generally aware of the legal state of hemp*
Me: ...I am unconvinced.
I don't _really_ want to be using a 16VAC input to this, 14VAC is sufficient and it's already gonna be dissipating a lot of power
or some other linear regulator, maybe we can use an LDO and a capacitor that's less than 20mF
okay we're overdesigning this
just gonna, stick a 7815 in there for the 15V thing, use a schottky bridge rectifier and a big cap, and we'll worry about anything on lower voltages when those things actually get designed in
not going to but it should not be this hard to build a power supply using technology that's been around for like six decades
tempted to just say fuck it and stick lead-acid batteries in there all over the place. oof
we don't know enough about magnetics to be comfortable winding our own transformer if it's going to be carrying a nontrivial amount of power
what we know: we need at least 750mA (call it an amp for headroom) at 15V
this is not hard, get a 14V or 16V AC source (transformer) and rectify etc.
but we have reason to believe we may also need a nontrivial amount of current at 5V, and I don't exactly want to be dropping 15V to 5V at like 2A in a linear regulator, so do they make transformers for 14VAC to 5VAC at 10-ish watts, or something like that?
trying to design a power supply when you don't know how much current you're going to need, and when you're concerned about efficiency, and you absolutely have to make it linear (noise would mess up research stuff)... fun times
weird (sfw)
three is a good number of eyes to have.
the Hearth
boosted
boosted
Posting since there's been a recent bump in Aptophillia interest! I put together a bunch of neat graphics about the term, as well as an empty template for any interested folks who might want to make their own!
FLY FLY AND SPREAD WORD OF THE WORD
Art by Pac
the Hearth
boosted
boosted
"It is a tragedy, I feel, that people of a different sexual type are caught in a world which shows so little understanding for homosexuals and is so crassly indifferent to the various gradations and variations of gender and their great significance in life." -- Emma Goldman, in a letter to Magnus Hirschfeld, A HUNDRED FUCKING YEARS AGO
Apparently non-lead-free plumbing solder is usually 50/50 tin-lead. I wonder why that is, when it's so far from eutectic? Electrical solder is almost always either 60/40 (a simple ratio close to eutectic) or 63/37 (exactly eutectic).
*loud beeping*
*thinks for a moment, then emits a beep with a 432Hz fundamental and particularly pronounced second, third, fifth, eighth, thirteenth, and twenty-first harmonics, lasting exactly one second*
megamon, gotta get equipped with 'em all
the Hearth
boosted
boosted
Too much of tech learning is either "go figure it out yourself" or "Just type/copy/paste this in".
There is not *nearly* enough of:
Use this:
"abc -d e -f g | h"
abc is the command to do X
-d e means to debug e
-f specifies file g
| is a pipe to send the results to the next program
h is the program that does the Y with the X done by abc
finding industrial liquid cooling systems is surprisingly hard because all the easy search terms lead to them being buried in PC and server liquid cooling
one of the best ones we've found yet is marketed specifically for use in brewing beer
*taps the internet* is this thing on
*imagines trying to build a DC-DC converter using GTO thyristors*
That sounds like an interesting challenge--wait no why am I thinking about this that's a really bad idea
- Pronouns
- for Fel: It/its or they/them/themself. For Rose: Zhe/zhir or she/her.
- Gender
- your guess is as good as mine
- Timezone
- UTC-8 or UTC-7 (DST)
Bot
Plural system of three, Felthry, Alaric and Rosemary. We'll sign posts with a -F, -A, or -R.
Autistic, 20-something, anxious mess
Please introduce yourself before sending a follow request.
#FelthrysVGMSelection for my music picks.
Current avatar by @hi_cial
Joined May 2017
