#garfield Logs

Jan 03 2014

00:08 katsmeow-afk i have 5 cans, nearly full, of spray foam, and cannot get anything out of any of them
00:13 katsmeow-afk humans can be soooooooo frustrating
00:13 katsmeow-afk > > What happens if you hold the BF button and power it up, release BF
00:13 katsmeow-afk > > when you see any trace?
00:13 katsmeow-afk > >
00:13 katsmeow-afk > > useless-kat
00:13 katsmeow-afk ----
00:13 katsmeow-afk > If I press the BF right after turning ON the power
00:13 katsmeow-afk That's not what i asked about.
00:13 katsmeow-afk ----
00:13 katsmeow-afk > In fact, I do not need to wait see any trace, I just press quickly the
00:13 katsmeow-afk > BF right after power up.
00:13 katsmeow-afk That's not what i asked about.
00:13 katsmeow-afk useless-kat
00:15 katsmeow-afk rue, my links to open a dir and show me in the browser, include the drive letter
00:27 rue_shop3 yaaay, now I can properly search and open all the datasheets I have
00:28 rue_shop3 whats a BF button, why is it on a can of spray foam?
00:30 katsmeow-afk BF = Beam Find , on a scope
00:31 rue_house oh yea, beam find
00:31 rue_house disconnect eth deflection coils
00:31 rue_house somewhere I have notes to the voltages that makes a spot come up
00:31 katsmeow-afk no, send signal to the deflecton driver, in a electrostatic tube
00:32 katsmeow-afk i have not seen a yoke on a oscpe tube in ,, never
00:33 katsmeow-afk there, i baggied the window ac unit, now watch it get to 80F the last 3 weeks of January
00:33 rue_house ops I said coils
00:33 rue_house heh
00:33 rue_house plates
00:37 tsmeow-afk tries to find a way to put some aluminum dinner plates into a 5 gallon glass "water cooler" bottle, and make it into a big oscope
00:39 rue_bed I just passed up some links today on metalizing surfaces like glass
00:39 rue_bed I'v made zink sulphate before, its fun
00:39 rue_bed greeeeen
00:40 katsmeow-afk mildly conductive, you can lite it with electricity
00:40 rue_bed I suppose its easier to just use phosphor from flourescent lamps, but whatever
00:40 katsmeow-afk there'sa couple of tubes from Tek 7912 on ebay now, they are priceless, but cheap on ebay
00:41 rue_bed the reaction to make zink sulphate is.... energetic
00:41 katsmeow-afk shame the 7912 they were in doesn't exist anymore
00:41 katsmeow-afk they are 2-gun tubes
00:41 rue_bed I have two electrostatic tubes
00:41 rue_bed seperate deflectors?
00:41 katsmeow-afk one writes at 1Ghz, the other reads at plain old ntsc
00:42 rue_bed hah, video conversion
00:42 katsmeow-afk the tube is 2" dia and over 2ft long
00:42 katsmeow-afk yeas
00:42 rue_bed that was the orig storage scope?
00:42 katsmeow-afk no
00:43 katsmeow-afk the orig storage scope was based on the olde memory tubes from computers
00:43 katsmeow-afk those were read-write too
00:44 katsmeow-afk turns out, if yu have a separate electon plate acting like a gun next to the screen, you can send mildly weak electons to the plate, and they will bounce off where the ....... etc etc etc
00:44 katsmeow-afk it's called "floodfill"
00:46 katsmeow-afk the 7912 tube writes to a PN diode grid, which seem to have some one-way electon channels in them, they will hold the write electrons from the 1Ghz gun from one side, and stay on until hit with an electron from the read gun on theother side
00:46 katsmeow-afk like a mosfet gate, i presume
00:48 katsmeow-afk the 7104 is a uncounted number of sub-mm linear light amplification tubes behind the phosphor screen, if even one electron hits the tube from the gun, it causes a cascade of electons , building as they travel the length of the tube, and exit making a bright spot from just one electron
00:49 katsmeow-afk the gotcha is each electon hit "contaminates" the tiny amplification tubes, and eventually there's no more active surface and that amplifier tube is dead
00:51 katsmeow-afk then there's sampler amplifiers, for the olde 500 series and the 5k and 7k series, but they can work only on signals that keep repeating, if you try to sample one sweep of the signal, you get one tiny spot on the screen
00:52 katsmeow-afk the samplers can reach 6Ghz even with 1960's technology, but only the 7104 can show an entire sweep line as it happens at 1Ghz
00:52 katsmeow-afk Lecroy made one that could, the 7912 can as a convertor, and a french company made fast scopes
00:53 katsmeow-afk some university made a 7912 hit 11Ghz(?), prooved it could be done, then dismantled it and sold off th parts
00:54 katsmeow-afk i have one 7903 that can do a Ghz, it has a special crt in it, i think it requires the direct drive plugins too
00:56 katsmeow-afk http://en.wikipedia.org/wiki/Microchannel_plate_detector <<== what's in the 7104's crt
00:58 katsmeow-afk the mcp plate can be used as a storage plate or image convertor too, you write at whatever bloody fast speed you want, then do a raster scan at reduced voltage and watch the beam current for drop-offs, which represent where the write beam was traced
01:01 rue_bed huh
01:01 rue_bed sounds like they were mixing some photomultiplier tech in there
01:02 katsmeow-afk it is, each tiny 10 micron tube is a linear photomultiplier
01:23 tsmeow-afk ponders a nap, sice it's nite
12:22 tsmeow-afk ponders being awake now, since it's day
12:27 katsmeow-afk so in reality, the usa attempt at stamping out the use of "ain't" is just another Brit way of hammering on Ireland and the Scots.... "ay" (as in "ay(e) ay(e), sir") followed the Brit rule of changing "y" to "i" when adding suffixes, so changing "ay not" (is not) to "ain't" (isn't) is grammatical, just isn't proper queen's Brit language
12:29 katsmeow-afk and since a lot of the southern appalachians were settled by Scots, and Britain claimed the continent, there was a lot of demonising and ostracising going on against those mountain people,, speaking of "against" they still demonise, but i still hear, "acrost" in legit ways
12:32 katsmeow-afk if anything, "against" is wierd, as it is "a" for "opposed to" (see agnostic (against knowledge) and atheist (against theology)) plus "gain" plus the (previously known as) geographic localizer "st": a-gain-st , while "across" isn't allowed to have a localizer? pooh
12:32 katsmeow-afk hows that last line for recursive logic? :-)
12:33 katsmeow-afk anyhow, yaml is now known as "yaml ain't markup language", previously known as "yet another markup language"
12:38 tsmeow-afk wonders what Tom is d
12:44 katsmeow-afk ---
12:44 katsmeow-afk Standard services from outside US - Est. delivery between Jan. 14 - Jan. 23 - FREE
12:44 katsmeow-afk Standard services from outside US - Est. delivery between Jan. 13 - Jan. 23 - $35.00
12:44 katsmeow-afk ---
12:44 katsmeow-afk for the same item
12:44 katsmeow-afk for the same seller
12:45 katsmeow-afk ---
13:35 tsmeow-afk soooooo wants to hear from rue about the real performance of the http://www.ebay.com/itm/291015063681
13:40 katsmeow-afk http://www.ebay.com/itm/15V-24A-360W-DC-Regulated-Switching-LED-Power-Supply-CNC-WITH-CE-/251047792019
13:41 katsmeow-afk but it's $40
13:41 katsmeow-afk $45, actually
14:05 katsmeow-afk ---
14:05 katsmeow-afk There once was a man from Ealing
14:05 katsmeow-afk Who got on a bus to Darjeeling
14:05 katsmeow-afk It said on the door
14:05 katsmeow-afk "Please don't spit on the floor"
14:05 katsmeow-afk So he carefully spat on the ceiling
14:05 katsmeow-afk ---
14:17 tsmeow-afk ponders a ruleset that would keep an inquisitive bot from researching the various conditions and constraints for peeing while standing on top of a
14:20 katsmeow-afk it's like "don't tell me about finances involving 0.001 cent" , unless you are going to pay me that much per second for no reason (it's $1.44 per day, $525 per year, in case you wondered)
14:22 katsmeow-afk or "don't tell me the temperature over 2 significant digits", so when it clicked from 99 to 100, the bot turned on the heat
14:26 katsmeow-afk how to cheat at making a row of 7-segment displays: lay out a sheet of saran wrap, coat with thin layer of mixed 2-part epoxy, lay in a row of optical fiber into the epoxy, overlay another saran wrap, clamp it, repeat 3x
14:27 katsmeow-afk err, repeat 4x
14:28 katsmeow-afk in a jig, hold the resulting 3 saran-fiber-saran sandwiches, and lay in alternating filler block and 4-fiber-wide pieces of the 4th sandwich, making a 3-legged ladder of fiber
14:29 katsmeow-afk sort out the fiber tails off the back and two-part them to the face of leds
14:30 katsmeow-afk this is super cheap and makes for precise spacing of all the dots
14:33 katsmeow-afk add a couple fibers below and between the chars if you like tails on decimal points, making them into commas
14:33 katsmeow-afk i should do that
14:38 katsmeow-afk 100ft of 0.5mm fiber is $7
14:39 katsmeow-afk 500ft of 0.5mm fiber is $24
14:40 katsmeow-afk and, i happen to have some anyhow
14:44 katsmeow-afk i have no saran wrap, but i do have plastic trash bag
14:44 katsmeow-afk tons of walmart plastic bags
14:46 tsmeow-afk wonders if clear plastic sheeting can be made into segm
15:52 katsmeow-afk https://github.com/kanzure/pdfparanoia <<== but currently broken, contact kansure if you need a working version, once he gets off his rear and fixes it
15:55 katsmeow-afk kanzure
15:55 katsmeow-afk Bryan what's his nick
15:57 katsmeow-afk daffynition: Macy's : a gauchery store
16:13 katsmeow-afk so yeas, while waiting on the caulking to dry, i did find short strips of clear 2-liter pop bottles can be used as lightguides
16:24 katsmeow-afk Tom, can you use the mill to make cuts thru 2 liter pop bottle material?
16:25 katsmeow-afk hmm, is there a glue that will stick to this stuff?
16:29 katsmeow-afk holy cow : http://www.instructables.com/id/Water-Rocket-Bottle-Splicing/
16:32 katsmeow-afk "Ocean in a Bottle - Take 1/2 bottle of oil, half water. Add food coloring and glitter. It is pretty cool, and works well with smaller bottles for babies to play with." <<== they don't say which half of the bottle
16:46 katsmeow-afk water bottle rocket ==>> http://www.instructables.com/files/deriv/FPV/2WWS/GCI8P7NC/FPV2WWSGCI8P7NC.SQUARE3.jpg
16:49 katsmeow-afk Very much depends on what pressure you use. This particular one shown here should go to around the 350 foot mark at max pressure. (140psi)
16:51 katsmeow-afk http://www.youtube.com/watch?v=5pRuQN44c34
17:05 katsmeow-afk heh : clear packing tape as a lightguide works too, short pieces
17:09 tsmeow-afk ponders making 7-segment displays narrower than the pixels on the puter mon
17:28 katsmeow-afk where do i get lengths of solid black pvc in 2x2mm or 2x3mm profiles?
17:33 tsmeow-afk ponders any other color plus a dye, but it would show when
17:39 katsmeow-afk ok, i can fit an entire 7-segment display inside a single segment width of a 0.32 7-segment display
17:41 katsmeow-afk the pico display will be 1.5mm tall
18:43 tsmeow-afk looks stoned from breathing epoxy fumes off the partial proof of concept piece of .030 inch wide 7-segment dis
19:05 katsmeow-afk AAARRRGGGG
19:06 katsmeow-afk i magicmarkered over the end, the lite cannot get out
19:09 katsmeow-afk it looks funny to see the sundown curve up and to the west, following the curve of the coastline from Oregon to Alaska
19:10 katsmeow-afk NY is well into dark, and yet directly south, the tip of South America is still daylite
19:11 katsmeow-afk in 6 months, the situation will be reversed
19:11 katsmeow-afk 25f here atm
19:12 katsmeow-afk may hit 18f tonite
19:12 katsmeow-afk Monday nite is stil forecasted to be below 10f
19:14 katsmeow-afk how can i be colder than Tom??
19:14 katsmeow-afk oh, tall spike of hot air going north out of Texas
19:16 tsmeow-afk can play the national temperature maps of conus like a movie back to ,,, umm, many y
19:25 katsmeow-afk "these guys work their butts off, they are sweating like mad, they are the salt of the earth!" "have you been tasting them?!?"
19:55 tsmeow-afk uses the leftover epoxy to glue chips down, and later will draw silver paint traces tween
20:10 rue_house one tho think on for ya
20:11 rue_house design a file system to use a 8PB write-once (append only) drive
20:11 rue_house kat, check out oogoo
20:12 rue_house (I think thats what its called)
20:12 katsmeow-afk how much room do i have for the 8Pb memory?
20:12 rue_house once 8PB is written, its full
20:13 katsmeow-afk oogoo is same as sugru?
20:13 rue_house the idea is to use it as a read/write drive, and throw away sectors that are obsolete
20:13 katsmeow-afk it's a clay, not a goo
20:13 rue_house made of silicone and cornstarch and...
20:13 katsmeow-afk hmm, locktite construction adhesive
20:14 rue_house there are some great youtube articles about casting poly resin
20:14 katsmeow-afk trying to glue down plastic from 2L bottles, it's got nice optical properties, and i have a lifetime supply of it
20:14 katsmeow-afk how much room do i have for the 8Pb memory? a closet or an acre?
20:14 rue_house embed it in poly resin thats got black pigment in it
20:15 rue_house oh, its about the size of a mouse
20:15 katsmeow-afk embedding is an issue
20:15 katsmeow-afk a mouse?? arg
20:15 rue_house remember you can grind off layers
20:15 rue_house so glue the popbottle to something, cast around it, and grind/polish down
20:16 katsmeow-afk i can get 1 Pb into a mouse size brick easily
20:17 katsmeow-afk oh, i am not using the popbottle, i am using the plastic it's made of
20:17 rue_house the proposal is to work out a filesystem that lets you use it as a extinguishable read/write drive
20:17 Lola8088 question... if you had to build a float switch... how would you do it?
20:17 katsmeow-afk i can get 5 Pb into a mouse size brick easily enough
20:17 rue_house as, say a 1T drive, it could last as long as a regular 1T drive before all the sectors were burned out
20:18 rue_house Lola8088, EASY
20:18 rue_house take a pop bottle,
20:18 rue_house fill it about 1/4 with water
20:18 rue_house put a screw in the cap to attach to a chain
20:18 rue_house hang the chain from a switch such that it holds the switch off
20:19 rue_house when the water level rises, the pop bottle floats and releases the pressure holding the switch off
20:19 Lola8088 it couldn't be a pop bottle... but i see what you did there
20:19 rue_house use tub chain
20:20 rue_house the pop bottle should weigh enough to pull the switch off
20:21 katsmeow-afk ok, for premium money, and someone else doing the pcb etching, i can cram 51,200 Gb into a mouse size
20:22 rue_house Lola8088, tho I can water detector circuit baords that are VERRY sensitive
20:22 katsmeow-afk but how can you sell something at that price?
20:22 rue_house katsmeow-afk, if one uses the right technology, write-only 8PB drive is easy
20:23 Lola8088 it would need to be more sensitive than that, and not be triggered by movement... accidental triggers would drain a battery and sink a boat
20:23 katsmeow-afk use a medicine bottle, a very tiny magnet, and a Hall switch?
20:23 katsmeow-afk side effect is the hall switch can be in a watertight container too
20:23 rue_house Lola8088, well, there is the electrode-based circuit board
20:24 rue_house boat ones just use a little float on a lever
20:24 Lola8088 they don't sell the good ones anymore
20:24 katsmeow-afk use a pingpong ball inside a 1.5" pvc pipe with photocell across the top where you want the floaty ball to trigegr
20:24 rue_house as kat said, some are a foam donut with a magnet in them around a cylinder with a magnetic switch
20:25 katsmeow-afk Nissan had those on the clutch and brake resevoir
20:25 Lola8088 they are on all the time and drain batteries. the oldones don't need to be checked all the time
20:25 rue_house http://www.ebay.ca/itm/3x-Tank-Pool-Liquid-Water-Level-Control-Sensor-PP-Float-Switch-40mm-/400634915420
20:26 rue_house http://www.ebay.ca/itm/Float-Switch-/350870355100
20:26 rue_house that is most of what I see
20:26 rue_house http://www.ebay.ca/itm/2x-PP-Gray-56mm-Side-Mount-Water-Level-Sensor-Liquid-Float-Switch-Horizontal-/400634915670
20:26 Lola8088 yeah, but it draws 100% of the time. need something with no draw until nessisary
20:26 rue_house again, like what kat said
20:27 rue_house I have a 12V solar panel that can generate easy 8x what the circuit draws
20:28 katsmeow-afk Hall effects and magnets pull so little power, especially if rue attaches one to a t13 so it's completly OFF 59.9 seconds every minute, a cheap 9v battery may last yu 3 years
20:28 katsmeow-afk we are talking microamps and very very low duty cycles
20:29 katsmeow-afk 20 clocks: wake up , power hall effect, sleep a ms, wake and check the hall switch, shut it all down and go back to sleep
20:30 katsmeow-afk a 400,000:1 duty cycle over a second , with under a sec responce time
20:30 Tom_itx use a microswitch on the pingpong ball
20:31 Tom_itx when the ball rises it trips the switch
20:31 Tom_itx no active electronics needed
20:31 katsmeow-afk micros aren't impervious to salt water, and a pingponb ball isn't floaty enough to close one
20:32 katsmeow-afk she may want only an inch of travel before it's triggered, which leave out long arm/levers on the switch
20:32 katsmeow-afk maybe 1/2 inch, whatever the min pump intake cover is
20:33 Lola8088 You are all Awesome!
20:34 katsmeow-afk Tom, can you mill pop bottle plastic? is it possible? or will it gum the bits like on the dremel?
20:34 Tom_itx probaby just gum the bits
20:34 katsmeow-afk drat
20:50 rue_house i wonder what you get if you apply crc cjecks to random noise
20:54 katsmeow-afk it should give you 100% fails
20:55 katsmeow-afk so how much do you wanna pay for your Petabyte brick?
20:59 katsmeow-afk (i'll want a lot of the money up front, since this is a custom order, and you will have the first one)
21:08 katsmeow-afk hmm, 3TB may cost $2k
21:08 rue_house no 8 petabyte bricks today
21:09 katsmeow-afk 1.6TB for $1000 ?
21:09 katsmeow-afk 1.6TB for $800 ?
21:10 rue_house no thanks, the going price is $200
21:10 katsmeow-afk someone is making them ?
21:11 rue_house 1.6TB?, no, 2T yea
21:12 katsmeow-afk umm, in flash or dram?
21:12 katsmeow-afk i was pricing for flash
21:12 rue_house mechanical magnetic
21:12 katsmeow-afk oh
21:12 katsmeow-afk why would you wanna write once to a harddrive?
21:12 rue_house I'v had 2 ssd's fail on me in about a year, I'm done with that tech
21:13 rue_house from now on, its mirrored magnetic
21:13 rue_house the 8PB is write -onle
21:13 rue_house write-once
21:13 tsmeow-afk nods, and that's why i wanna convert Tiggr to using triple drives in full backup mod
21:13 rue_house after you write data, it cant be erased
21:14 katsmeow-afk buy with a hdd, why would not want to erase/overwrite the data
21:14 rue_house the problem dosn't exist with normal hard drives
21:15 rue_house my question was just that, if you have an 8PB drive, thats write-once, how do you design a filesystem to use it like a normal drive
21:15 tsmeow-afk looks confused, can't you tell me some deta
21:16 katsmeow-afk simple trap the delete outa the OS, or, on the drive IDE, you write to the "locked but good" sector track
21:16 rue_house its an etched media drive
21:16 katsmeow-afk see, you aren't giving me any details, i give up on guessing what you have/want
21:17 katsmeow-afk hell, write a pile of blu-ray discs <shrug>
21:18 rue_house I suppose you could have a bitmapped region for sectors flagged as 'deleted'
21:18 katsmeow-afk but then yu can't read them either
21:19 katsmeow-afk there is a sector allocation table on all drives already
21:19 rue_house the sectors are still there
21:19 rue_house but its a write-once media drive
21:19 katsmeow-afk still there, but the OS won't read them
21:19 rue_house you cant rewrite a fat
21:21 katsmeow-afk reprogram the puter on the drive to never write to a sector that's already allocated , but you'll confuse the heck outa the OS
21:21 rue_house my point is to come up with a filesystem that handles it nativly
21:22 katsmeow-afk ok, the FS is part of the OS, you shold be able to hack nix to do it
21:22 rue_house linux can do tonnes of filesystems,
21:23 rue_house widnows cant even handle iso9660 if its not on a cd
21:23 katsmeow-afk however, as a file-based OS, nix will cache stuff it needs over and over and over, i'd be surprised if you don't fill a terabyte every month on an active puter
21:23 rue_house caches it in memory
21:24 katsmeow-afk go for it, hack whichever nix FS you want?
21:24 katsmeow-afk no, mine never did, it wrote EVERYTHING to disk to keep memory open for the currently active program
21:24 rue_house the question is how to make a file system that would work for a write-once drive
21:24 katsmeow-afk it would take MINUTES to launch FF
21:25 rue_house hmm, tonight I want to try to make a 7 segment out of resin and pop bottle, play with driving a fet with an op-amp, and get the shop cleaned up for robotics tommoorow
21:26 Tom_itx oooo you still doin robotics?
21:26 rue_house tommorow is the first in 2 weeks
21:26 katsmeow-afk if you KNOW you can append or write an entire file out, then when a whole file is to be written flag all the sectors for that file on the drive as already bad
21:27 katsmeow-afk but if you have 1GB of ram in the puter, and wanna write a GB file, you gotta know that file is half-cached somewhere, because it isn't in ram
21:28 katsmeow-afk you will still be trashing your cache drive
21:30 katsmeow-afk ok, 2-part epoxy is doing a fine job of holding onto popbottle plastic, even tho it's not set fully and i am bending the plastic up outa the epoxy,, and it's not embedded in the epoxy, it's epoxied only on one side
21:31 katsmeow-afk gonna try tomorrow when it shoul be fully hard as a rock
21:45 katsmeow-afk on a tiny44, is it feaseable to use app of port A and 2 pins of port B, so i can toggle one B pin to indicate if my app is reading or writing a byte on port A , and the otehr B pin as a signal from the app to the real world?
21:46 katsmeow-afk there's only 4 pins on port B, and one of them is -reset-
21:46 katsmeow-afk two are xtal
21:47 katsmeow-afk can i use two of those port B pins?
21:59 katsmeow-afk arg
22:06 katsmeow-afk rue, for reference : http://designerthinking.com/images/digits/DSCF3417m.jpg http://designerthinking.com/images/digits/DSCF3405m.jpg
22:08 katsmeow-afk http://designerthinking.com/images/digits/compare.jpg the one on the left is Tek's oem 9-digit display, it says it's a ghz, but will not display 1,000,000,000
22:10 katsmeow-afk the segments on my display are 1mm wide, and each 7-seg is $0.50
22:11 katsmeow-afk i can buy only red, i can make any color
22:11 katsmeow-afk but if it costs me an hour to make one in blue, i cannot compete with 50 cents for red
22:12 katsmeow-afk if i can make the entire module in 30 minutes, then i have a shot at making $5
22:14 katsmeow-afk if i skinny the segments down to 1/3 mm wide, the module will fit the space better too, saving 6mm, or half a digit on each side of that 10-digit module
22:14 katsmeow-afk or i can sell an 11-digit module
22:15 katsmeow-afk and i can offer not just '.' but also ',' and '''
22:15 katsmeow-afk and colors
22:16 katsmeow-afk atm, i am tripping over the space *between* the segments, that 2x3 mm empty space
22:20 katsmeow-afk Tom, how would you make a black opaque 2x3 mm rod which i can cut into lengths as needed?
22:21 Tom_itx huh?
22:21 katsmeow-afk the black spaces tween the segments in http://designerthinking.com/images/digits/DSCF3417m.jpg
22:21 katsmeow-afk 2 black spaces per "8"
22:22 Tom_itx thin plexi i suppose
22:23 katsmeow-afk saw strips ?
22:24 tsmeow-afk ponders using the dremel as a table
22:24 Tom_itx seems easiest
22:24 Tom_itx color some epoxy
22:24 Tom_itx space them right and pour
22:25 Tom_itx vacuum it to remove bubbles
22:25 katsmeow-afk i'd need to make molds for the squares
22:25 katsmeow-afk hmmm
22:28 katsmeow-afk drat
22:32 rue_house damn, I keep falling asleep in the chair
22:32 katsmeow-afk iodine!!!
22:41 katsmeow-afk just remember : charging at 4amps for 10hrs is almost like charging at 10amps for 4hrs or 40amps for 1hr , but a regulated 14vdc 4amp laptop psu is cheaper than a 10amp or 40amp charger, and smaller, lighter, and accepts any input volts
22:42 katsmeow-afk and, i am out of aligator clips big enough for a battery post
22:43 katsmeow-afk and btw, ebay just dumped your 2011 puchase history
23:01 katsmeow-afk "2.54mm Jumpers Female Open Top for squate type Headers"
23:22 katsmeow-afk it is cold upstairs, batman
23:45 katsmeow-afk tab is drain :-/
23:46 katsmeow-afk well, heck, i'll float the incoming (-) and gnd the heatsink, that's will show them something they'll never see or be concerned about