#garfield Logs

Jul 08 2015

00:02 rue_house heh
00:19 any15046317 fans have also sucked in the trash fire smoke, and then cleared it just as fast when the wind shifted
00:20 any15046317 gotta make the fans smart, temperature sensors and smoke detectors, maybe hum-i-dity too
00:40 rue_house is the smoke enough for a photoelectric smoke detector to pick up on?
00:41 any15046317 not if i go by the photo detectors i have now
00:41 any15046317 it's enough y can see it in the air over 100ft, but the stink will make your eyes water before then
01:38 rue_house so I'm thinking if the op-amp range is only 1.75-3.75V, I can use just about any op-amp
01:38 any15046317 ok
01:38 rue_house I dont need to use the rail-rail ones
01:39 rue_house tho my rail-raikl ones have a good freq responce
01:40 any15046317 i am thinking if the psu switcher costs less than one pass transistor pair, it works out cheaper to use two of them tham throw more circuits at it to split one cheap psu
01:45 rue_house did you see how I used two supplies to makea +-5V supply?
01:46 rue_house http://ruemohr.org/~ircjunk/projects/audioswitch/main.html
02:25 any15046317 i need at least an amp, i hope under 1.5amps
02:30 any15046317 thing is, it's radically easier if it'scentertapped, or using two isolated psu that i can stack like +/-
02:32 any15046317 luckily, the Tek TM500 mainframes have 2 isolated 19vac windings per slot, i can switcher the 19vac@.5a down to 4v@2amps, which is enough to drive a couple of transistor bases
02:33 any15046317 one for the npn, one for the pnp
02:40 any15046317 and i can still use the 19v supplying the -4v as a +11/-4 opamp supply
02:42 any15046317 or +20/-4
03:01 any15046317 ...
05:21 any15046317 "thayer was hah we ends, and R treka lapsed"
06:35 any15046317 "most researchers get it wrong: cats domesticated humans 10,000 years ago so humans would pile up grain and attract rodents for the cats...."
06:55 any15046317 ah hah, if you open about:config in FF, and delete the value for the default search engine, the damned annoying search bar engine menu will stop popping up and over the text copy/paste/delete menu on the search bar
06:56 any15046317 then install the addon for selecting the search engine when highliting text
06:57 any15046317 then all is goot
12:12 any15046317 ,
12:14 zhanx .
12:16 any15046317 i have no clue whee my roll of valley flashing is
12:17 any15046317 need to make rain bonnets for the new fans
12:39 y15046317 ponders using two 1/4 alum tubing fastened together, with enough gap tween them to allow the pins of TO-3 to pass between the two tubings,, and run liquid coolant thru the tu
12:42 any15046317 because the MJ15024 can handle way more than it can dissipate into a regular heatsink
12:42 any15046317 it's pretty much screaming for a freon coolant
12:43 any15046317 at which point the tubing won't work, because the square shape will eventually break from pressure cycling
12:45 y15046317 ponders making a liquid-tight non-pressure rectangular shape, filled with dehydrated glycerine, with freon cooling lines run around and around inside it, and a tiny glycerine pump just to stir it ar
12:47 any15046317 so to cool the thumb-sized $2 transistors at 80vdc@2amps will take a 2cuft $500 noisey chiller pulling 120vac@10amps
12:47 y15046317 s
12:55 any15046317 qty 10 TIP14x are $9, 10 will handle 5amps@80v , and spread that heat out over at least 10x1 inch, vs 1x1 of a single $2 TO-3 ... 5x the cost, 1/2 the Vrange, 10x the heat dissipation
12:55 any15046317 making tradeoffs sucks
17:57 zhanx http://i.imgur.com/S07jHC0.png
17:58 zhanx and the settings screen, http://imgur.com/CwAr4wX
17:58 zhanx and in the box again http://imgur.com/eL0ACYq
18:42 y85226947 looks clue
18:45 zhanx home automation room interface
18:45 zhanx icons are not set for location but about done
18:49 any85226947 oh
18:52 any85226947 i got a better fan for the car, it's a 120vac house fan, asked in Home Depot if i could try it in the car before purchase, got a lot of wierd looks, you know, like "crazy handicap thinks this will work in her car" .. worked great, sales lady surprised as heck, i bought it
18:54 zhanx what they didn't know a/c or d/c motors still workie?
18:56 any85226947 it's a ac-only motor
18:56 any85226947 i carry a 300w power "invertor" in the car
18:57 zhanx oh
18:58 zhanx need to learn gimp python so i can automate this image resizing
18:58 any85226947 the car's dc fan is always full of mouse nests, i do not know why, i can guess they chewed into a portion of the plastic duct where i can't see it
19:00 any85226947 and it's weak as hell, won't defrost the windschield, thinking of cramming in a small 120vac shopvac as a blower, or a 120vac leafblower
19:01 any85226947 or, i can pull the center console out ~6 inches, and fit in a 9" 120vac fan that will defrost easily (tried it, it works), but that doesn't give me access to pull in outside air
19:02 any85226947 the new $15 blower is like head out the window at 30mph, but it's not outside air, it's blowing hot inside air, but beats nothing
19:05 any85226947 roof flashing has skyrocketed, one 50ft roll is $60 with tax
19:07 zhanx everything has skyrocketed
19:08 any85226947 i wonder if the usa money policy isn't "if something drops in price, print more money so everything else goes up in price, and wages get more devalued"
19:10 any85226947 because the more money moving around, the more can be taxed
19:11 any85226947 every 10 cents an item's price goes up, it's another penny in tax, and it adds up,, and thent he labor wants a raise, pushing them into a higher income tax and deductions bracket
19:12 any85226947 in the meantime, if it's not increases in a limited number of commodities , and at the right imes, then it's not a cost of living event
19:23 any85226947 the county here no longer responds to events on the interstate, neither do the city cpos (the interstate runs thru the city), and pot holes are no longer being filled for several months
19:24 any85226947 afk
19:24 Tom_itx consider them rumble strips to slow traffic
19:47 rue_house hi
19:48 rue_house Tom_itx, did you see my last question?
19:49 rue_house kat, I dont think tom really even cares whats wrong with him
19:49 rue_house why?
20:56 Tom_itx no
21:09 any85226947 1w leds take up 1/4 inch x 1/4 inch, so a 14x14 inch panel hidden in a shirt would be 3,136 watts , would a photoflash cap work?
21:10 any85226947 56 strings of 56 leds in series?
21:16 zhanx So no heat sinks?
21:16 any85226947 battery won;t last long enough to warm the leds
21:18 any85226947 someone asks you for a light, you turn them on for 1/2 sec
21:19 any85226947 be like a flashbang, but quiet
21:19 any85226947 and less smoke, hopefully
21:19 rue_shop3 zhanx, why do people just lay down and die when they have a problem?
21:20 zhanx no clue
21:20 any85226947 it's more peaceful, silly
21:20 zhanx say 3 photoflash caps to be sure
21:20 rue_shop3 zhanx, I'm one of those "if I'm going, your going with me" what kinda person does that make me?
21:21 zhanx i am like you can try to take me with you, but i doubt you will succeed
21:22 any85226947 i shot the dog before it could bite me, it got distracted and went home, curled up and went to sleep
21:22 any85226947 i was still distressed
21:22 rue_shop3 hmm
21:22 zhanx rue you see my screen shots?
21:23 rue_shop3 nope
21:23 zhanx <zhanx> http://i.imgur.com/S07jHC0.png
21:23 zhanx and the settings screen, http://imgur.com/CwAr4wX
21:23 zhanx and in the box again http://imgur.com/eL0ACYq
21:23 any85226947 scroll up
21:23 any85226947 about 3 lines
21:23 zhanx need to work on the rest of the sub screens when the kids sleep
21:23 rue_shop3 how candy :)
21:24 rue_shop3 screen is a tight fit
21:24 zhanx i hate stuff like that. pita and took all day
21:24 zhanx very
21:24 zhanx 60x60 icons
21:24 zhanx px
21:24 rue_shop3 not 64?
21:25 zhanx 240x320
21:25 any85226947 on a fone i can't afford anyhow
21:26 zhanx i need to make a whiteboard
21:26 zhanx or a black lite window
21:26 zhanx err back even
21:27 rue_shop3 ooo a backlight pane
21:27 rue_shop3 I could use taht stupid tv
21:29 any85226947 display something on the tv to trace it onto paper? wait,, they have "printers" for that
21:30 rue_shop3 I have tv's that aren't into doing the picture thing
21:30 y85226947 ponders doing alil grinding on rust and some arc wel
21:31 zhanx kat more like toss out idea's etc on them
21:31 zhanx helps me brain storm
21:31 y85226947
21:32 any85226947 leds strings from ebay, laptop psu bricks from ebay, glass or plexi panels , and a frame
21:32 zhanx yep
21:32 zhanx wall sized
21:33 any85226947 sliding glass doors then
21:33 any85226947 7x5ft
21:34 zhanx stack them
21:34 zhanx like 8 deep
21:34 any85226947 i thik you lost me
21:35 zhanx have a wall, with a full length track, couple on the back that don't move and layers forward to use as over lays
21:36 any85226947 but if an overlay is all back-lit up, how do you see thru it to the one behind?
21:36 zhanx on;y the marker lights up
21:36 any85226947 ah,, er, no, not leds, lasers then, in colors
21:37 zhanx oh fun with lasers and I would need a warning sign1
21:37 zhanx !@
21:37 any85226947 depends on how you used them, i spose
21:38 any85226947 get a dozen of them moving, leave the door open, see how fast the room fills with cats
21:38 zhanx lol
21:39 zhanx i should send it to rue
21:49 any85226947 made it as far as the stairs , if i go up to work on stuff, i'll need some alcohol first,,,, high speed power tools plus arc welding plus alcohol,, danit i wish i had the elevator i was putting in
22:09 any85226947 .
22:09 zhanx ok
22:09 zhanx this might let some smoke out
22:10 zhanx will draw it up fast so everyone can understand it
22:10 any85226947 not so fast it smokes as you draw it!
22:10 zhanx dont worry slow computer
22:21 zhanx rue
22:21 zhanx kat
22:21 zhanx http://imgur.com/0uxHmTu
22:21 zhanx ok the intent
22:22 zhanx have a hidden switch that can turn on the light if the system fails
22:23 zhanx so i think as long as i am on the same circuit for the wires I can run 2 hots to the switch.
22:23 zhanx rue_shop2, rue_shop3, rue_house
22:37 y85226947 grabs an IV pole, mounts a 2ft tall payphone on it, and a trailer hitch to pull behind the wc
22:37 any85226947 and it works
22:38 anx gets a
22:38 zhanx after all these stupid graphics my brain hurts
22:38 zhanx but its candy
22:41 any85226947 still 80F outside, lil warmer inside
22:41 zhanx i got a/c now :P
22:41 zhanx granted had to fix it first
22:41 moon_ HAY RUE
22:41 any85226947 going to make a tuna snack, praps get some shuteye to make my feets feel better, and get an early start onit in the morning
22:43 zhanx moon_, rue is mia
22:43 any85226947 my first a/c here was free, and broken, ~1989?, i fixed it, and still runs, monster of a 240v window unit, very low EER
22:44 any85226947 using a 5000 btu 120v unit for yrs, cools the whole downstairs, and runs maybe 15 min of each hr tween noon and midnite
22:45 any85226947 downstairs = (16+16+16)x24
23:21 rue_shop3 kat, can the TL072 operate in a 5V rail?
23:22 rue_shop3 its locking up or soemthing I dont get it
23:22 any85226947 i really doubt it
23:22 rue_shop3 ok
23:22 any85226947 it's a 1980's part, rail-to-rail wasn't important
23:22 zhanx oh rue_shop3 shows up
23:24 any85226947 low noise jfet input, .01% THD,
23:25 any85226947 with +/- 5v rails, will swing ,,, well, this datasheet is borked, it cannot swing 6Vpeak-to-peak with 5v rails
23:26 rue_shop3 heh
23:26 rue_shop3 power blink took out the UPS
23:26 any85226947 oh, different measurment, it can
23:26 rue_shop3 so I threw it out the window
23:26 any85226947 "took it ut" ?? isn't the whole point of the ups is to not go out?
23:26 zhanx moon_ was looking for you
23:26 rue_shop3 hes in a chiar behind me
23:27 any85226947 then why the heck was he loking for you!?
23:27 any85226947 turn off your invisability clock
23:27 any85226947 cloack
23:27 any85226947 uyoieynoe78tyqehqe
23:28 zhanx abcdefghijklmnopqrstuvwxyz
23:29 any85226947 14�7�12�10�13�4f10g2h10�7j5|<13l2m5�7�13p4q10�2s10t7�5v13w2�5�14z
23:31 any85226947 rue, the 71 has 100 ohm emitter resistors on it's outputs, and the outputs don't saturate, looks like 1.5v from the rails, so if it powered up on 5v, you'd have max 2v of signal output
23:32 any85226947 +/-4v will swing +/-3v no load
23:32 any85226947 oh, this is why the datasheet is fnky, it's STs version of the TI part
23:33 any85226947 TL080 .003% THD
23:35 any85226947 yea,, TI's '80 datasheet looks a bit different that ST's '70 datasheet
23:36 any85226947 try a TL060
23:37 any85226947 the SGS datasheet looks different than TI or ST
23:38 any85226947 TI put out 64 pages of data on the TL05x
23:39 any85226947 ,
23:42 any85226947 archetecture : art you live in