#garfield Logs
Dec 08 2013
#garfield Calendar
06:03 rue_house gnight
13:23 rue_bed ok kat has 34 for $6
13:24 rue_bed I could find 34 for $9
13:26 tsmeow-afk nods and wonders why she hasn't eaten breakfast or lunch
13:26 Tom_itx nice blanket of ice on everything here
13:27 katsmeow-afk 50f here atm, rainy
13:27 katsmeow-afk will you be saving the ice to make cool air with 6 months from now?
13:30 tsmeow-afk likes to watch birds swoop in for a landing on ice, it's like regular birds acting like gooney b
13:31 rue_bed kat, is that just a seller you know always has low prices?
13:32 Tom_itx rue_bed did you see the progress on my control?
13:33 katsmeow-afk which seller?
13:33 rue_bed the one you pulled the chip socket listing for
13:34 tsmeow-afk notes she listed 6(?) chip socket sel
13:35 rue_bed oo
13:35 rue_bed http://www.aliexpress.com/item/AE-100-pcs-14-pin-DIP-IC-Sockets-Adaptor-Solder-Type/1328840126.html
13:36 katsmeow-afk socooletc just refunded me on a screwup in sockets, i think they have morons weighing items instead of counting them, the upshot is it's been 3 months and i don't have what i ordered
13:36 katsmeow-afk so i would not order fromo him aain, no matter what the price
13:36 rue_bed ah you saw a 100pcs for $7ish
13:37 rue_bed the mahcined pin is nice tho
13:37 rue_bed I'm surprised the prices are so low
13:37 katsmeow-afk not so sure i'd get non-gold machined auguts, just because of the corrosion factor, but that's prolly why they are so cheap now
13:38 katsmeow-afk tinned sockets are tinned so the copper doesn't corrode, i have had *tons* of problems with non-conductive bare copper before
13:38 katsmeow-afk ymmv
13:41 katsmeow-afk also, i can be real cheap, i'd buy dip-18 and take a dremel with an abrasive disk to them to make shorter dips if the price was right,, like the dip-18 for dirt cheap: makes twice as many dip-8s for half the price of dirt
13:41 katsmeow-afk so don't rule out dip-20, dip-28, etc either,, imo
13:43 katsmeow-afk i once had a problem with a purchasing dept when ordering lots of qty , so i ordered a single line item of sip and cut pairs of 7's to make dip-14, pairs of 8 to make dip-16, etc
13:44 katsmeow-afk which also allowed me to put stuff under the chips, like decoupling caps
13:45 katsmeow-afk it confuses the heck outa people when you can drill and solder sockets from one side that overlap drileld and soldered sockets from the otehr side :-)
13:46 katsmeow-afk the heck-of-an-oddball 74154 always involved cutting a dip-40 when you needed it this week
13:52 katsmeow-afk i need foods, and decongestants
14:18 tsmeow-afk digs up Tom's front whole yard, 20ft deep, puts a gunnite swimming pool in it, then 10ft inside that puts up another swimming pool, caps it all over with retractable roof (like your choice of garage door styles), leaving slots tween the "pools" for Tom and neighbors to "dispose" of leaf and lawn rak
14:19 katsmeow-afk upfront cost: high ; cost amortised over 20 years to use as a thermal flywheel: worth it
14:20 katsmeow-afk rue, for instance, this is a good deal : http://www.ebay.com/itm/140804401425 , but it's socoolmart , so you may not get 10 pcs
14:24 katsmeow-afk wow, thunder in December
14:31 rue_house ah
15:06 katsmeow-afk 1993 - Two companies are accused of using Lake Powell as "an underwater landfill" and
15:06 katsmeow-afk pay a record $1.325 million fine. It was the largest civil or criminal environmental
15:06 katsmeow-afk penalty ever assessed in Arizona. More than 100 truckloads of debris and 1,000 batteries
15:06 katsmeow-afk were dumped at the Wahweap, Hall's Crossing, Hite, Bullfrog and Dangling Rope
15:06 katsmeow-afk marinas at Lake Powell
15:07 rue_house and not 1c will be used for a cleanup operation
15:07 Tom_itx one sheriff refused to fly the flag at half staff for Mandella... raising quite a stink
15:07 Tom_itx many are praising him
15:08 katsmeow-afk well, i thought lowering the flag was, by law, reserved for usa citizens
15:09 Tom_itx exactly
15:09 Tom_itx however it was lowered for the pope etc
15:09 katsmeow-afk :-/
15:11 rue_house "he was a programmer, when he died we just cast him into a void"
15:12 rue_house kat, I'
15:12 rue_house m gonna try this
15:12 rue_house I ahve mixed expectations
15:13 rue_house http://www.ebay.ca/itm/291015063681?var=590182606091
15:13 rue_house one of those
15:13 rue_house http://www.ebay.ca/itm/350869951366 hooked up to 2 of those
15:13 rue_house http://www.ebay.ca/itm/271330790395 modified with 4 of those
15:14 rue_house http://www.ebay.ca/itm/350684030654 to go thru 1 of those each
15:14 Tom_itx from which i sent you
15:14 rue_house http://www.ebay.ca/itm/151062816087 with one of those each across them
15:14 katsmeow-afk whaaaaa?
15:15 rue_house http://www.ebay.ca/itm/290952063761 with those ont eh final outputs
15:16 katsmeow-afk for the purpose of what?
15:16 Tom_itx combining ebay parts to make something...
15:16 katsmeow-afk you cannot run 30amps thru a bananananana jack, yanno
15:16 rue_house http://www.ebay.ca/itm/250897213267 I might put in 2 of those, and hook them to an avr and hook the avr ..
15:17 Tom_itx those don't look much like banannas
15:17 katsmeow-afk true, wrong colors
15:17 Tom_itx those don't look much like banannas
15:17 Tom_itx :D
15:17 Tom_itx damn key buffer
15:17 rue_house http://www.ebay.ca/itm/USB-2-0-to-TTL-UART-6PIN-CP2102-Module-Serial-Converter-Transfer-Chip-Status-LED-/121230262761 with one of those
15:18 e_house wonders what the voltage drop of a bananna is at
15:18 rue_house potasium is a metal...
15:19 katsmeow-afk and it's moist
15:21 rue_house probably not for long at 30A
15:21 rue_house I suspect that 300W would heat something as dense as a bannana up pretty quick
15:21 rue_house and thats just 10V
15:22 rue_house anyhow, thats my new bench supply idea
15:22 rue_house a dual with common ground
15:23 katsmeow-afk keep in mind peak ratings are not "leave it on all nite" ratings
15:23 rue_house the modules say 5A, but their counterpartrs are rated for 3,
15:23 rue_house the main says 10A, but at 120V I expect less
15:24 katsmeow-afk like, 15v@5amp are good to only 4amps all nite, and only if you peel the plastic case off it and put a blower on it
15:24 rue_house the last supply like those I played with was rated 2A, and at 120V, at .7A it was at about 4V
15:24 rue_house (5V supply)
15:25 katsmeow-afk then why are yu going to buy more of them??
15:25 rue_house its overrated for waht I'm doing, I think odds are good it'll do ok
15:26 katsmeow-afk i has some fine lil 14v 4amp supplies, problem is at 4.1 amps they do not throttle back the power, they instead shut off completely
15:26 katsmeow-afk i think the odds are you get ,, umm,, err,,, dissatisfied
15:27 rue_house I need to get good at changing the voltages on pc supplies
15:28 rue_house on most pc supplies the feedback circuit is really crude
15:28 rue_house but most of the time they rely on the 12V for their logic power
15:28 tsmeow-afk suggests if yu want brute force power, grab a 50lb Peavy bass amp from the dump, put car batteries across the psu's caps in it, and dial up whatever dc output you
15:28 rue_house which, in all fairness could probably be rerouted off a modification of the 5vsb (usually 15V with a 7805)
15:29 rue_house amps are like 80V tho
15:30 rue_house then again, thats usually +-40
15:30 katsmeow-afk so slit it
15:30 katsmeow-afk split
15:30 katsmeow-afk i have a Marantz that is +-80, but still, conversions can be made
15:31 rue_house it'll take a month of so for all the parts to roll in, I'll gather and play
15:31 katsmeow-afk you need 80v to down-regultae to charge your 48v battery pack
15:32 rue_house right now my bench supply is a RS 24V 1A variable current/voltage, its almost ok, but I'm always bumping my head on the 1A limit
15:32 rue_house http://www.ebay.ca/itm/Hantek-Programmable-High-Precision-Lab-Bench-DC-Power-Supply-PPS2116A-/221265590812
15:32 katsmeow-afk i did a few calc, instead of a 12v@16amp, when i need 14v@8amp, i am still better off buying laptop psu, which i have actual hands on data on my workdesk for, just based on dollars per watt
15:32 rue_house and I mean, seriously?
15:32 rue_house price wise?
15:33 katsmeow-afk ouch
15:33 rue_house aaah, thats why your interest in them
15:33 rue_house thats a cheap one
15:33 katsmeow-afk some humans have a lot of money and believe a 99.9999% precise power supply at the other end of the 3ft of hookup wire is what they need <shrug>
15:33 rue_house they seem to go up to around the $300 mark
15:34 rue_house heh, if its such a precise power supply, where are the feedback connections
15:35 katsmeow-afk yeas, with extreme mods, i can fit eight laptop psu into one TM506 plugin formfactor and get 450 watts of tightly regulated 14vdc out of it
15:35 katsmeow-afk only way to afford it, of course, is bottom feeding on ebay and making most of it with my own paws
15:36 katsmeow-afk lotta tradeoffs, like saving case metal cost by trimming pcb, not using an actual TM506 when ic an use only the front half, and then making that myself too
15:36 rue_house I was looking at digital pots for controlling the regulator modules, but they are only good for 0-5V
15:36 rue_house and I suspect the ranges on the control pots are higher
15:37 rue_house I'll see!
15:37 rue_house I found digital pots down to about $2.50/chip
15:37 katsmeow-afk 5v isn't a problem if you use it to drive a 30v opamp
15:37 rue_house they are only 8bit, but thats more than enough resolution for what I need (over 0-5A, 0-32V)
15:38 rue_house I wanted to put them in place of the pot on the regulator baord
15:39 katsmeow-afk the 30v opamp can control a pair of MPSA92/MPSA42 for darned near any volts you want (up to 300)
15:40 katsmeow-afk someone on ebay once darned near gave away 4000 KPS42 500ma 300v 50Mhz TO-92
15:45 katsmeow-afk umm, why not use the pwm out of a avr to set the psu voltage?
15:46 rue_house I'd rather analog chip do it
15:46 katsmeow-afk k
15:46 rue_house yikes, I have to be carefull I almost ordered dip sockets twice
15:46 katsmeow-afk the digital pot may vary a lot with temperature
15:46 rue_house Ihave 200pcs 16 pin in this other order
15:46 tsmeow-afk
15:47 katsmeow-afk going to build a lot of soemthing, or just keeping up stock?
15:47 rue_house they blacked out the controller ont eh baord, I need to know more
15:47 rue_house I'm gradually ordering lifetime supplies of things
15:48 rue_house so I never have to worry
15:48 Tom_itx then you will have piles of outdated stuff
15:48 rue_house so far I'm good for smt caps (6.8uF) 1k smt resistors,
15:48 katsmeow-afk hmmmm
15:48 katsmeow-afk Processed at USPS Origin Sort Facility
15:48 katsmeow-afk Dec-04-13, 18:28 PM, ATLANTA, GA 30320
15:49 katsmeow-afk Enroute
15:49 katsmeow-afk Dec-08-13, 13:36 PM, CATANO, PR 00962
15:49 rue_house 74ls00
15:49 rue_house pin headers
15:49 katsmeow-afk that's a hell or a long way around to get to me from atl
15:49 rue_house 50pcs 7805 will last a lOONG time
15:50 rue_house 50pcs ea 2 pos and 3 pos headers
15:50 Tom_itx until all logic is 3.3 1.8 or 1.5v
15:51 rue_house I use the 7400 for converting dir/pwm into sideA/sideB for motor drivers
15:51 rue_house its becomming standard on all the motor drivers I make
15:52 rue_house because, for some reason, there still aren't really low prices on good motor drivers
15:52 rue_house kat, how many 1N4004 can you find me for $10? ;)
15:53 rue_house (1N4001 - 1N4007)
15:54 rue_house I can find 500pcs for 10.37...
15:55 rue_house brb
15:55 Tom_itx how many amps?
15:55 Tom_itx i forget
15:55 katsmeow-afk 4004 = 1 amp
15:56 rue_house I think the last digit is volts*100
15:56 Tom_itx would make more sense if the 4001 was 1A
15:56 Tom_itx and the 4004 was 4
15:56 Tom_itx but wtf do i know
15:56 katsmeow-afk The auction for this item says you ship only to the usa. The current tracking in usps says the item is now in Puerto Rico. I am not now, or have i ever been, in Puerto Rico. I suspect this is not your fault, i'm just saying this could be a problem.
15:57 katsmeow-afk 100 diodes worth buying : http://www.ebay.com/itm/140801206469
15:57 Tom_itx usa property though isn't it?
15:57 katsmeow-afk yeas
15:57 katsmeow-afk but i am not there
15:57 rue_house 3A!
15:57 katsmeow-afk and they cannot deliver the item to me by yesterday if it's there now
15:58 rue_house is the 5408 the same size at 4004?
15:58 rue_house why would anyone get 4004?
15:58 katsmeow-afk a lil fatter, heavier legs
15:59 katsmeow-afk 4004 is fine if you need a stupidly slow and limited cpu
15:59 katsmeow-afk err, 1N4004 is fine if you need 500ma of a bias supplu, or a protection diode for anything where a human will hook up the wrong polarity
16:00 rue_house http://www.aliexpress.com/item/1N4148-1N4007-1N5819-1N5399-1N5408-1N5822-FR107-FR207-8values-100pcs-Electronic-Components-Package-Diode-Assorted-Kit/829741319.html
16:00 rue_house huh
16:00 katsmeow-afk kits like that *can* be very dumb
16:01 rue_house afk
16:07 tsmeow-afk looks sad that her $9.50 digital camera with video output and 4x zoom and macro and autofocus has been to Puerto Rico and she hasn't,,, for $
16:08 katsmeow-afk $9.50,, for the camera and a free trip to Puerto Rico
16:09 katsmeow-afk i bet i don't even get pics of it's trip
16:11 katsmeow-afk well, crap, the 100EP445 went to Miami, i bet it goes to PR too
16:40 katsmeow-afk people pay good money to have an airconditioned livingroom like mine right now
16:41 katsmeow-afk it still 75f down here tho, which is fairly fine for winter
16:54 katsmeow-afk http://www.smbc-comics.com/comics/20100506.gif
16:59 katsmeow-afk http://www.smbc-comics.com/comics/20131205.png
17:33 rue_house heh
18:09 katsmeow-afk Tektronix 7603 Oscilloscope 100Mhz w/ 7A13 7A26 7B53A Modules ; Item: 291032377622 ; Time left: 3d 22h leftThursday, 4PM ; $9.99 + $41 s&h <<== $50 total, the 7A13 may sell for that by itself
18:19 rue_shop2 crap, the boiler dumped
18:20 katsmeow-afk literally
18:20 katsmeow-afk question: how do you know that from inside the house?
18:27 rue_shop2 I saw a funny change in the line temp on the chart
18:27 rue_shop2 I looked outside and there was a huge cloud of steam
18:27 rue_shop2 it dumps into the firebox
18:28 katsmeow-afk ah
18:29 rue_shop2 looks like it didnt' lose more than 4 or 5 gallons
18:29 katsmeow-afk if it is dumping from ove-pressure, that means it's heating the water faster than it can be pumped into the house for cooling?
18:30 rue_shop2 no
18:30 rue_shop2 its a hot water tank valve
18:30 rue_shop2 it dumps at about 85c
18:31 rue_shop2 it dumped because I was testing making all the control programs start up on reboot and I missed that one didn't start, the relay controller for the boiler circ pump
18:32 rue_shop2 I have to put a temp sensor on the exhanger that can turn the pump on regardless of what the computer is doing
18:34 tsmeow-afk
18:36 tsmeow-afk ponders all 32 t13 acting like floating oscopes and being displayed at the same
18:45 rue_shop2 oh damn, what happened to your project this weekend...
18:45 katsmeow-afk i dunno
18:47 katsmeow-afk re the camera visiting Puerto Rico:
18:47 katsmeow-afk hi, Im in Ga so it should go straight to you but i ship a lot and its
18:47 katsmeow-afk happened more than a few times where it goes to PR first before it comes
18:47 katsmeow-afk back to the US. its a printed paypal address so it should be your
18:47 katsmeow-afk correct address on the package. if for some reason it gets delivered
18:47 katsmeow-afk there I will refund you but ive never seen it where it doesn't come back
18:47 katsmeow-afk to
18:47 katsmeow-afk the US within a day or two. im just not sure why that happens. let me
18:47 katsmeow-afk know if it doesnt get to you in the next few days. eric
18:47 katsmeow-afk so...... this is a normal thing
18:49 rue_house it might be the ebay shipping thing
18:50 rue_house ebay has a shipping program that is supposed to help sellers but usually turns into a fiasco
18:50 rue_house the sellers ship it to ebay, who re-ship it
18:50 rue_house for "cheaper"
18:53 katsmeow-afk makes me wonder if the tracking number is being mailed to PR, where the items are put into the package, and it's "returned" to the usa
19:02 katsmeow-afk why is it sometimes the ebay auction countdowners do not count down?
19:21 katsmeow-afk the chem student asks about the mediocre sulfur oxide solution: so, hows the so-so SO solution?
19:43 katsmeow-afk Coldest temps in 3 years in Western Washington
19:43 katsmeow-afk SEATTLE (AP) — The National Weather Service says the current cold snap has brought the coldest temperatures in three years to Western...
19:58 katsmeow-afk http://articles.latimes.com/2013/oct/28/business/la-fi-lazarus-20131029
21:17 katsmeow-afk http://www.foxnews.com/tech/2013/11/14/making-terminator-ii-army-reality/
21:25 Tom_itx to be clear on something... sourcing means the pin supplies the +V to the device
21:25 Tom_itx ?
21:25 Tom_itx sink means they supply the GND
21:30 katsmeow-afk yeas
21:31 Tom_itx i'm having to reverse the logic on some pins
21:31 Tom_itx as the fpga in 5v mode floats
21:32 Tom_itx so it must be pulled low to work, otoh, this board works the opposite
21:33 Tom_itx working on the spindle signal now, then i'll have one bundle moved over
22:27 TELunus|2 Oops.
22:28 TELunus|2 I screwed up a config file without making a backup first :(
22:28 TELunus|2 Apparently google doesn't know what the default is.
22:34 Tom_itx woops
22:34 Tom_itx don't touch that wire there...
23:23 TELunus|2 Disaster averted.
23:24 TELunus|2 There were various files for recreating the config file.
23:25 TELunus|2 Now I just have to figure out why the version of sendmail I installed with the official freebsd port installer isn't the one that the system starts up.