// #eevblog — 2019-04-28
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02:10:53 Join: pippo ([email protected]) to #EEVblog
02:11:36 <pippo> hi guys.... anyone with experience can guide me on repairing a samsung blueray player that displays "PROTECTION" as soon as I power it on?
02:14:08 Quit: pippo ([email protected]) Quit: AustNet Web Chat - https://webchat.austnet.org/
02:18:01 <DHess_US> Wait, isn't there a name for that? https://www.irishtimes.com/news/environment/europe-is-contributing-to-widespread-deforestation-in-brazil-say-scientists-1.3871714
02:18:18 <DHess_US> https://usercontent.irccloud-cdn.com/file/BQaGMWv1/IMG_1046.JPG
02:31:22 Join: WebChatUser ([email protected]) to #EEVblog
02:37:15 Quit: WebChatUser ([email protected]) Quit: AustNet Web Chat - https://webchat.austnet.org/
04:40:52 <steve30> What's with all the girls showing up in the gay section on dating sites recently?
04:41:27 <DHess_US> They aren't girls. They are FBI agents in disguise.
05:28:08 * T3sl4 summons steve30 for a nice relaxing scritch
05:29:34 * steve30 pounces onto T3sl4
05:29:48 <T3sl4> :3
05:32:05 <T3sl4> i just assembled 1380 parts over the last couple days, i need a relaxation
05:32:25 <steve30> that's a lot
05:32:30 * steve30 purrs at T3sl4
05:36:38 * T3sl4 scritches steve30 behind the ears
05:37:39 <steve30> :)
05:58:58 <T3sl4> wat
05:59:04 <T3sl4> it's snowing again.
05:59:22 <T3sl4> it was a beautiful spring day just yesterday
05:59:34 <steve30> hehe
06:01:12 Join: TMS ([email protected]) to #EEVblog
06:01:26 <TMS> Hey guys anyone here?
06:01:32 <T3sl4> nope
06:01:57 <TMS> Anyone know anything about slayer exciter curcits?
06:02:38 <T3sl4> would it shock you (ha) to learn that a user with a nick like mine, doersn't?
06:02:55 <T3sl4> ...because it's not shocking, ofc i know :P
06:02:59 <TMS> Haha
06:03:15 <TMS> Ok man im stuck at picking a transistor for it
06:03:45 <T3sl4> D44H11?
06:03:46 <TMS> I have tried all the weak stuff
06:03:56 <T3sl4> wait, was it supposed to be MOS or BJT
06:04:16 <TMS> What specs am i looking for
06:04:36 <T3sl4> oh, the instructables uses a TIP31C, how shitty
06:04:38 <TMS> Nope in slyer exiter a power transistor i sused
06:05:00 <T3sl4> "power transistor" isn't specific enough i'm afraid :P
06:05:10 <TMS> Well that is my problem
06:05:19 <T3sl4> well, assuming that they got it to run at all, it's probably fast enough then
06:05:26 <TMS> I dont know what is important with a slayer exiter
06:05:41 <TMS> so gain is important?
06:05:41 <T3sl4> really should have a TVS from GND to collector though, that poor transistor
06:06:15 <TMS> I found these in a power supply
06:06:17 <TMS> http://www.radioradar.net/en/datasheets_search/D/1/3/D13007K_ETC.pdf.html
06:06:32 <T3sl4> those are pretty low gain, and might not work yeah
06:06:44 <TMS> So gain is important
06:06:53 <TMS> and a high heat dissapation value
06:07:04 <T3sl4> hFE over 50 should be fine
06:07:18 <T3sl4> fT over 10MHz should also be important
06:07:27 <TMS> https://www.bucek.name/pdf/mje13003.pdf
06:07:37 <T3sl4> and, what size coil are you trying to drive, what's its resonant frequency?
06:07:37 <TMS> worked for me
06:08:00 <TMS> Have no idea. Its my first coil
06:08:07 <TMS> Its 500 turns
06:08:11 <TMS> of 30awg
06:08:37 <TMS> Primary is 5 turns of some bigger wire
06:08:43 <TMS> Dont know the awg
06:09:27 <T3sl4> dia, len?
06:09:39 <TMS> Btw is resonant important in a slayer exiter?
06:09:43 <T3sl4> yes
06:09:58 <TMS> As it has feedback
06:11:09 <T3sl4> what coil diameter and winding length
06:11:36 <TMS> 40mm
06:11:39 <TMS> dia
06:12:18 <TMS> 200mm lenght
06:12:51 <T3sl4> should be about 2.4MHz, less with a top load
06:13:18 <TMS> How did you calculate that?
06:13:27 <T3sl4> magic: http://hamwaves.com/inductance/en/index.html
06:13:54 <TMS> Thx for the magic :)
06:14:06 <TMS> Does this change anything?
06:14:29 <T3sl4> it's actually the most accurate calculator i know of, anywhere, including programs or textbooks
06:14:33 <TMS> Can i somehow get a better transisor knowing this?
06:16:05 <T3sl4> what's your power supply?
06:17:05 <TMS> Its a bench top ps
06:17:27 <TMS> With https://www.bucek.name/pdf/mje13003.pdf
06:17:34 <T3sl4> just in case, try it with -V tied to GND
06:17:41 <TMS> I have had it up at 30v
06:17:55 <T3sl4> (instead of open)
06:18:37 <T3sl4> often there's three lugs on the front panel, those are usually freen and black
06:18:44 <T3sl4> green*
06:19:04 <TMS> Yea i do have 3
06:19:25 <TMS> I have red black and green
06:21:37 <T3sl4> maybe try fewer primary turns, keep it closely coupled to the secondary base i think
06:21:58 <T3sl4> what base bias resistor?
06:22:30 <T3sl4> can try down to maybe 2.2k without exploding the transistor, will want a heatsink though
06:24:22 <TMS> 47k
06:35:47 Quit: TMS ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
06:36:05 Join: TMS ([email protected]) to #EEVblog
06:38:10 <TMS> Ok thx man
06:38:16 <T3sl4> cheers!
06:38:48 <TMS> So the lower the resistor
06:38:57 <TMS> The faster it oscilates?
06:39:16 <T3sl4> no, just the more current to start it up
06:39:41 <TMS> So i get better arcs?
06:39:53 <TMS> On the secondary?
06:39:55 <T3sl4> there may simply not be enough gain at whatever, some mA collector current that draws, to get it to oscillate
06:40:11 <T3sl4> then maybe you get arcs
06:40:42 <T3sl4> it should be that it works worse with more primary turns, but i may have that backwards
06:41:09 <TMS> Ok thx. Will try a SSTC after i had my fun with slayer exiter
06:41:33 <T3sl4> yeah, scaling up is a good idea
06:41:44 <T3sl4> you'll burn up a lot of transistors just jumping in
06:42:12 <TMS> Yea 2n2222. about 30 of them kicked the dust
06:42:27 <T3sl4> that was pricey
06:42:37 <T3sl4> surely plastic PN2222 at least?
06:42:41 <TMS> yea
06:42:58 <TMS> those cheap small ones
06:43:04 <T3sl4> the 2N is strictly the metal can version, so many get that wrong
06:43:24 <TMS> Ok see you m8
06:43:29 <TMS> thx for the help
06:43:41 Quit: TMS ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
07:30:17 Join: Bluenote ([email protected]) to #EEVblog
09:50:57 <Halcyon> Meow
09:51:31 * T3sl4 scritches Halcyon on the head
09:51:35 <Halcyon> YAY!
09:51:43 <Halcyon> How goes?
09:52:29 <T3sl4> it's bloody snowing again
09:53:18 <Halcyon> That sucks, it's another gorgeous day here. No clouds, should be about 22-23 degrees today.
09:53:37 <T3sl4> it was like that yesterday, not as warm and windier
09:54:24 <Halcyon> The nights have been getting cold though
09:54:25 <Halcyon> Below 10
09:56:12 <T3sl4> good for autumn walks :)
10:02:23 <Halcyon> When I think of Autumn, I think of this: https://www.youtube.com/watch?v=7xEX-48RHCY
10:02:36 <T3sl4> :D
10:04:31 <Halcyon> I feel like a Reuben sammich but I don't have the ingredients for it :(
10:05:51 * T3sl4 slaps Halcyon with a slab of ham
10:06:06 <Halcyon> Mmmm piggy
10:06:51 <Halcyon> I should close some browser tabs, they are getting too small to click on
10:07:38 <T3sl4> https://imgur.com/gallery/SrrpVr7
10:07:51 <Halcyon> Heh
10:08:15 <Halcyon> Ooh the auction starts shortly, I bid on that hall table
10:09:14 Quit: arekm ([email protected]) Ping timeout: 121 seconds
10:09:56 Join: arekm ([email protected]) to #EEVblog
11:17:04 * Ampera shines a little love on Halcyon's life
11:17:08 <Ampera> https://www.youtube.com/watch?v=uIY2BrfvWCI
11:17:51 <Halcyon> You and bloody ELO :P
11:18:11 <Ampera> I'm glad it annoys you, Halcyon.
11:18:45 <T3sl4> ELO there
11:18:56 <Ampera> how do Halcyon
11:21:35 <Halcyon> Not too bad
11:23:34 <Ampera> I bought Factorio for 30 USD
11:23:45 <Ampera> and I imagine I won't be putting it down for a few millenia
11:24:46 <T3sl4> i'm sorry to hear that
11:25:07 <T3sl4> maybe you'll finally achieve your dream and die of starvation in front of it
11:25:16 <Ampera> T3sl4, one can always hope
11:25:19 <T3sl4> :)
11:25:36 <Ampera> but I know I've made good friends when they start to pick on my concept of haha suicide's great guys
11:44:28 <damian> ey children
11:45:00 <Ampera> my dad will often snoop a load of article sites, and send interesting ones along to people who he thinks will enjoy them
11:45:16 <Ampera> but literally he sends me everything that even mentions Linux, even if it's a tutorial on how to pick your damn nose
11:45:33 <Halcyon> My mother uses "lol" in text messages
11:45:35 <Halcyon> *palm*
11:45:48 <Ampera> lol is still an acceptable expression
11:45:54 <Halcyon> It's stupid
11:45:56 <Halcyon> Like "app"
11:45:58 <Ampera> is it not douchebag Gen Z enough for you fambam.
11:46:18 <Ampera> do you need something more lit in your life?
11:46:23 <Halcyon> lit?
11:46:29 <Ampera> your figdet spinner not giving you enough distraction?
11:46:34 <Halcyon> Oh gees
11:47:08 <Ampera> so don't complain that someone uses lol in a conversation, they could be much more considerably self-unaware.
11:47:32 <Halcyon> She's like 60 years old
11:47:43 <Halcyon> She should be more age appropriate
11:48:10 <Halcyon> It's the digital equivalent of her wearing "what the kids wear"
11:48:31 <Ampera> Halcyon, I'm listening to 1970's disco music, which would be of her time
11:48:42 <Ampera> so unless you want her to start calling you Daddy-o, shut up
11:49:00 <Halcyon> There is a difference between having a music or artistic preference and trying to be someone you're not
11:49:18 <Ampera> so saying lol is being someone you're not?
11:49:28 <Halcyon> It's stupid
11:49:37 <Ampera> I say lol all the time
11:49:44 <Halcyon> Well then...
11:50:03 <Halcyon> It just annoys me, it's like when people refer to SQL as "Sequel"
11:50:07 <Halcyon> They can fuck off too
11:50:19 <Ampera> everybody says it, I don't know what internet streets you've been standing on, but lol has been here for ages, and has never fallen out of use.
11:50:39 <Halcyon> It's fallen out of use significantly
11:50:50 <Halcyon> I used "lol" when I was 16 too
11:50:54 <Halcyon> I am no longer 16
11:50:55 <Ampera> Halcyon, or perhaps you've fallen out of touch.
11:51:37 <Ampera> guess I'm gonna have to watch myself around you now, god forbid I say kek
11:51:41 <Ampera> then you might really have a misunderstanding
11:52:01 <Halcyon> You can say what you want. You're not a 60 year old woman
11:52:02 <Ampera> as for SQL, the people who say sequel are as annoying as the people who pronounce SCSI sexy
11:52:16 <Halcyon> Who the FUCK says "sexy"
11:52:21 <Halcyon> It's "Scuzzy"
11:52:24 <Ampera> Halcyon, I've seen people say it.
11:53:06 <Ampera> I'd actually consider sexy more phonetically correct, but still stupid
11:53:31 <Halcyon> There is no "e" syllable in SCSI
11:53:51 <Ampera> there's no u either
11:53:57 <Halcyon> If anything it would be "sissy" like "Sci-ence"
11:54:17 <Ampera> there's no middle I either
11:54:28 <Halcyon> Well "Sssssy" then
11:55:06 <Ampera> how about I PAT your Ass and we collectively shut up :P
11:55:19 <Halcyon> *grin*
11:55:40 <Halcyon> What should I make for dinner?
11:56:12 <Ampera> pancakes
11:56:20 <Halcyon> Meh
11:57:36 <Halcyon> Might do a quiche or similar
11:57:58 <Halcyon> Or a stew maybe
11:58:17 <Ampera> quiche is the gayest food
11:58:24 <Halcyon> But also delicious
11:58:52 <Ampera> so is cock, but it's a philosophical debate as to if that's gay for me
11:59:08 <Halcyon> Heh
11:59:17 <Halcyon> Although you've never tasted cock
11:59:23 <Halcyon> Don't you have to try it first?
12:02:50 <Ampera> for legal reasons I am not permitted to answer that inquiry, and redirect you to the fifth US constitutional amendment.
12:03:52 <Halcyon> Never read it, don't care
12:04:48 <Halcyon> Anyway, time to go to the shops
12:04:50 <Halcyon> Back later
12:05:02 <Ampera> bah
12:05:07 <Ampera> shitty cop, doesn't even know the constitution
12:51:12 <DHess_US> https://www.youtube.com/watch?v=rs9w5bgtJC8
14:35:35 <Halcyon> Heh I watching this auction 2 pairs of deer antlers, AUD$80
14:47:21 <EEVBlog> New EEVBlog Tweet: Another custom cake by Mrs EEVblog https://t.co/Q6LZp6uew5
17:20:04 <Halcyon> Hey steve30: Here's a kitty for you https://www.youtube.com/watch?v=UdwRo9wfKmc
18:16:18 Quit: Bluenote ([email protected]) Quit: Leaving
20:05:41 <Stiff> they will look good on your half table Halcyon :P
20:06:19 <Halcyon> :P
20:07:44 <Stiff> what did you end up cooking btw
20:07:57 <Stiff> i love quiche
20:08:07 <Stiff> call it truckers steak
20:08:24 <Halcyon> I threw some beef and veg in a slow cooker and made some potato/sweet potato mash
20:10:42 * Stiff drools
20:17:00 <steve30> hi
20:17:42 <DogWomble> hello :)
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