// #eevblog — 2019-01-26
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01:05:04 Quit: coppice_ ([email protected]) Ping timeout: 121 seconds
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03:49:24 <rust_collector> what do you do, when you are in a store, asking for "item" and they say "absureexpensiveprice"?
03:49:54 <rust_collector> I tried to say "haha, ok, how much do you really want?"
03:50:00 <rust_collector> did not go down too well
03:56:13 Quit: AndrevS ([email protected]) Connection closed
04:27:51 <ServalSpots> Depends on the context, but usually when I ask for the price of something I'm not going to immediately buy it anyway so I just thank them for the information
04:28:23 <ServalSpots> If you want to convey that you're not buying it because of the price "Thank you anyway" seems popular
04:46:45 <DHess_US> What do I do? I shoot the hostage in the leg?
04:48:53 Join: WebChatUser ([email protected]) to #EEVblog
04:49:21 <WebChatUser> does anyone have any recommendations on a PCB and PCBA service that can handle BGA chips and 2 mil track widths?
04:54:29 Quit: WebChatUser ([email protected]) Quit: AustNet Chat Network - WebIRC
04:56:37 <rust_collector> well, I just think 552 usd is a bit on the high side for the gas struts on a corolla wagon rear gate/door thing
05:01:59 <ServalSpots> If it's a situation where the price is negotiable then you can go that route, and your opening line would depend on the situation. (There are times when what you said above would probably work fine)
05:05:32 <rust_collector> Yeah. I am not good at dealing with people. I knew the price would be high-ish, at the dealer, but... Anyway, I bought 4 lugnuts, so she would be happy
05:18:15 Join: DL3CE ([email protected]) to #EEVblog
05:22:39 <ServalSpots> Being an introvert that has had to buy car parts I can relate to both of those problems :P
05:30:31 <rust_collector> I do buy a lot of car parts, but I have my favourite stores I go to, I just happened to be outside the dealer, and figured I would go and ask, almost just for fun. The vw dealer has had very random prices, some very low, some...dealer like
05:30:58 <rust_collector> hmm, I am taking apart an "old" tuner/amplifier
05:32:13 <rust_collector> Does the number of secondaries change the power rating? or can I estimate in the same way as a single secondary transformer?
05:32:30 <rust_collector> it is a toroidal donut, if that matters
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05:52:40 <DHess_US> rust_collector, yea, gas struts for hatchbacks and doors are rediculously expensive.
05:53:24 <DHess_US> You have to add the total for the secondaries. Better is to measure the primary.
05:56:21 <rust_collector> I am not really sure about measurements of these things, I was just comparing it to others that had some data, by weight and general size. My best guess for now, is around 50-60VA
05:57:48 <rust_collector> I am fairly sure it will handle being a little bench power supply, but it would be fun to "know", lol
06:07:15 <rust_collector> nah, it will be fine.
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06:13:51 * steve30 meows at ServalSpots
06:18:35 Quit: DogWomble ([email protected]) Ping timeout: 121 seconds
06:19:03 <DHess_US> You could go through some product catalogs and just check the weight for similar transformers.
06:19:17 <DHess_US> If you overload it it is not like it will explode.
06:19:46 <DHess_US> Building a power supply out of a random transformer is a time honored tradition.
06:19:51 <DHess_US> Just include current limiting.
06:23:56 <rust_collector> that is the plan.
06:26:18 <rust_collector> this one has... 4.5 secondary windings. a 16.5 x 2 one, which has fairly beefy wires, and a 9.5, 23, and a 3.8v winding, with probably very low power. I think it will be ok.
06:32:03 <DHess_US> The low power winding would be good for a floating regulator design if you wanted to wire the two power windings in series for higher voltage.
06:32:40 <DHess_US> Or use it to provide drive to the pass transistors.
06:34:33 <rust_collector> I don't know if I really want all that high voltage? but I do think I would like a positive and a negative output, but we will see what I can get out of it. Hmm, yes, I think running the circuitry with a seperate winding could be neat
06:36:08 <rust_collector> I do have a lot of random transformers. I just thought this one would be small enough to keep on the bench, while still being enough for basic tinkering
06:36:33 <rust_collector> if I need more, I could do an AVE, and just hook up the welder to it, lol
06:52:43 <DHess_US> Or build a floating dual tracking supply similar to the Tektronix PS503. Then you get high voltage or dual tracking in one unit.
07:03:39 <rust_collector> I am looking at that tek one now (pictures) and... yes. that seems like a good idea.
07:03:51 <rust_collector> wow, made from -72 to -95
07:06:33 <DHess_US> There are some simple 317/337 dual tracking designs which are almost the same thing but of course do not go below +/-1.25 volts without help.
07:09:52 <rust_collector> I have been looking at different ways to do this for quite some time, and I do tend to end up just confused. Part of me is ok with helping a 317, but some other regulator circuits do seem nice as well.
07:10:39 <rust_collector> But, in the end, it is just a basic bench supply, for hobby use, so maybe a 317/337 would be just fine
07:19:57 <DHess_US> They have the virtue of simplicity even with a dual tracking design.
07:20:57 <rust_collector> hmmm. nothing wrong with being simple... I mean, I have been around for (almost) 40 years, and I am pretty simple
07:21:42 <Ampera> ye, that's a strange bug, that shu is completely random and got inserted into the code equally as randomly. I have no idea why it's there, but I've removed it.
07:23:20 Join: AndrevS ([email protected]) to #EEVblog
07:24:03 <Ampera> also holy fuck that NBN install
07:24:23 <Ampera> I could see fucking sunlight through that, it's not a hole, fucking tear in the entire house.
07:36:11 <DHess_US> rust_collector, check out page 9 of the LT1033 datasheet for an example which will work with a cheap 317 and 337. https://www.analog.com/media/en/technical-documentation/data-sheets/1033fd.pdf
07:36:30 <rust_collector> thanks, I will do that now
07:42:50 <rust_collector> one I have looked at some times, is this one: https://diyodemag.com/_images/5ab86735c672e0b6179bb3ba
07:43:10 <rust_collector> I guess it works pretty much the same, plus the opamp fot the tracking
07:59:43 <EEVBlog> New EEVBlog Tweet: Balloon time https://t.co/62A9XLAGFa
08:08:46 <EEVBlog> New EEVBlog Tweet: RT @RC_Sterling: @eevblog @HostFission Just had to try this! I feel like I've found out santa isnt real. https://t.co/5LCVIt5HVt
08:51:18 <rust_collector> DHess_US: I think I will just start with the one you posted, thanks for that one, and I will probably redo it many many times
09:16:19 Quit: Michi ([email protected]) Quit: ChatZilla 0.9.93 [Firefox 52.9.0/20180621064021]
09:18:57 <Halcyon> Morning all
09:19:43 <rust_collector> moaning
09:20:52 <Ampera> eyyy, Halcyon
09:20:54 <Ampera> how do
09:21:01 <Halcyon> Sore
09:21:03 <Halcyon> But good
09:21:11 <Ampera> fun night?
09:21:26 <Halcyon> Nah I've had training at work all week and my legs are killing me
09:22:06 <Ampera> wrestling crocs, boxing roo's, and throwing drop bears?
09:22:13 <Halcyon> Basically :P
09:22:17 <Ampera> I have pizza
09:22:22 <Halcyon> Oh yum
09:22:28 <Halcyon> I just woke up, I could do with some breakfast pizza
09:22:39 <Ampera> so that got me and my mom talking about building a brick oven in the back yard
09:23:10 <Halcyon> I want a woodfired oven
09:23:27 <Ampera> mmm, fire
09:25:08 <Halcyon> It's going to be hot here again today, 41C
09:25:16 <Halcyon> It's 0930 and it's already 28 outside
09:25:36 <Ampera> -4C right now
09:25:47 <Halcyon> Chilly
09:25:54 <Ampera> not really
09:26:03 <Ampera> was in the -20's last weekend
09:31:29 <steve30> hi Halcyon
09:31:46 <steve30> My uncle does pizzas on his barbecue.
09:31:53 <Halcyon> Hey Steve :)
09:31:59 <steve30> Though having said that, he does practically everything on the barbecue
09:31:59 <EEVBlog> 42, steve30!
09:32:03 <Halcyon> I tried that not long ago, on a pizza stone, worked out really well
09:32:13 <steve30> hello EEVBlog
09:32:28 <Halcyon> Ampera: What's with the 42?
09:32:45 <Ampera> that's a 1/100 payload
09:33:08 <Halcyon> So it spits out random numbers?!
09:33:18 <Ampera> keyed randomly if someone says the words, answer, life, universe, or everything
09:33:28 <Ampera> no, it says 42
09:33:29 <Halcyon> Weird
09:33:55 <Ampera> EEVBlog, what is the answer to the question, of what is life, the universe, and everything?
09:33:55 <EEVBlog> 42.
09:34:33 <Ampera> That's one of the easieset payloads to get, the other ones are 10x harder, and only happen on specific circumstances
09:34:40 <Ampera> what circumstances, y'all have to find out
09:42:58 <steve30> I'm looking forward to snuggling up in my duvet :)
10:15:29 Quit: AndrevS ([email protected]) Connection closed
10:21:01 <rust_collector> https://imgur.com/a/L9Dxiv2
10:21:13 <rust_collector> being banned from the kitchen table sucks
10:24:02 <Halcyon> I'm having a brain fart... it is "washed separate to" or "washed separately from"
10:24:12 <Halcyon> The more I read it, the more confused I'm getting
10:26:37 * steve30 hugs Halcyon
10:26:45 <Halcyon> Aww :) Hi Steve *licks*
10:27:08 <steve30> I think 'washed separately from' is more correct, but either should do
10:27:21 <Halcyon> Yeh that's what I thought
10:27:41 <steve30> I don't seem sleepy enough atm
10:27:47 <Halcyon> What time is it?
10:27:56 <steve30> 2331
10:27:56 <rust_collector> my jacket just says to be washed separately
10:32:51 <steve30> Halcyon, the guy I went on a date with a few months ago wants me to go and see him, so hopefully i'm going in a week or so. I'm just cringing at the cost of the train fare.
10:33:13 <Halcyon> Oh yay1
10:33:15 <Halcyon> How much is it?
10:33:21 <steve30> £48
10:33:29 <Halcyon> To travel how far?
10:34:11 <Halcyon> You going to the other side of the country or something?
10:34:21 <steve30> 70 miles there, 70 miles back
10:34:47 <Halcyon> Gees, that's expensive
10:35:07 <Halcyon> Here it's $4.40 for up to 10 kilometers and goes up to $10.60 for 65+ KM
10:35:25 <Halcyon> It's even cheaper if you're a regular traveller and have an Opal card
10:35:47 <Halcyon> And then cheaper again if it's off-peak ($6.08 for 65+ KM)
10:35:48 <steve30> I'd say its about on par with other journeys, so nothing odd. Our trains are just stupidly priced.
10:36:55 <rust_collector> go ahead is taking over the trains up here. I bet that will be awesome
10:48:43 <Ampera> it's one of those days when you spill milk all over yourself and the floor
10:56:17 * steve30 hugs Halcyon some more to try and relax
10:56:28 * Halcyon scratches Steve's head
11:08:08 <steve30> hehe https://www.instagram.com/p/Bq7_kAEgINa/
11:11:21 <Halcyon> Bah, cats
11:14:16 <steve30> I think i'll have another attempt at sleep
11:14:23 <EEVBlog> Cats are nice, Halcyon!
11:30:05 <rust_collector> cats are almost as evil as horses
11:42:06 <Halcyon> Trust you to put that in there Ampera :P
11:42:24 <EEVBlog> Put what in where, Halcyon?
11:42:32 <Halcyon> Har har
11:42:35 <Halcyon> Stop abusing the bot :P
11:42:45 <Ampera> lighten up :>
11:42:50 <Halcyon> Stupid cats
11:42:57 <Halcyon> EEVBlog, what do you think about dogs?
11:43:08 <Halcyon> Knew it! You're so racist Ampera
11:43:08 <Halcyon> :P
11:43:31 <Ampera> I hate white people.
11:45:25 <coppice_> I'm not keen on ghosts either
11:45:36 <Ampera> ghosts aren't people
11:45:49 <coppice_> deathist
11:46:21 <Ampera> No, I have no issue against spirits, spectres, or other non-corporial entities, I simply have no approval for ghosts
11:46:50 <coppice_> they don't need your approval
11:47:20 <Ampera> No, but they need my belief, for a legend ceases to be a legend, when there is nobody to tell it
11:49:51 <coppice_> they only need your belief if they don't exist. and if they don't exist they have no needs
11:52:51 <DHess_US> Gozer the Gozerian? Good evening. As a duly-designated representative of the City, County and State of New York, I order you to cease any and all supernatural activity and return forthwith to your place of origin, or to the next convenient parallel dimension.
11:54:56 <Ampera> DHess_US, can I please have appropriate identification of your title? Otherwise I will be forced to report this to my local NY state trooper station.
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13:20:45 <EEVBlog> New EEVBlog Tweet: Seriously hot on Australia Day. Bugger it, children's playground. https://t.co/2tzLomk6B3
13:27:18 <DHess_US> https://i.imgur.com/ez6K2Aj.jpg
14:45:16 <EEVBlog> New EEVBlog Tweet: 1h 15min of raw footage, oops. https://t.co/s2TlGjudpf
18:28:57 Join: DogWomble ([email protected]) to #EEVblog
18:29:07 Mode: (by ChanOP) +o DogWomble
21:48:31 Quit: arekm ([email protected]) Ping timeout: 121 seconds
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21:57:45 Quit: DogWomble ([email protected]) Ping timeout: 121 seconds
22:27:40 Topic Is: Official IRC channel of the EEVBlog - www.eevblog.com
22:27:40 Set By: (ChanOP) on: Tue Jan 22 08:34:08 2019
23:17:17 <EEVBlog> New EEVBlog Tweet: Any hour now... https://t.co/gzBMYa5fOs
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