please, don't use that mic. hahahah

@JulianIlett

7 жыл бұрын

It's a $0.99 fail!

@eisenklad

7 жыл бұрын

agreed... its sounds grainy and way softer.... i bet if you increased the gain, it will sound worse and probably have to use noise removal

@SidneyCritic

7 жыл бұрын

It's a touch clearer, but it's softer and hissy. There is noise canceling in Win, but it didn't help my cheap mic.

@Markus0021

7 жыл бұрын

If I closed my eyes and just listened, I would rate its value at about $0.99 - I'm guessing you'd have to spend significantly more to get a microphone with decent sound quality. Kind of like buying a $500 car (which I did as a teenager, and which worked about as well as you'd expect).

@FennecTECH

7 жыл бұрын

that mic is SHIT

I think the idea is to push the standoff through a case from the outside, then snap a circuit inside.

@alexb.1320

7 жыл бұрын

Yes, or through another board to piggy back them.

@AndirHon

7 жыл бұрын

GordieGii I used to pull these out of cheap PC cases. They would snap the whole thing through a larger hole in the case and the motherboard would snap into the small part keeping the motherboard spaced properly.

@gregorythomas333

7 жыл бұрын

Originally used as mobo standoff in cheaper computer builds possibly? I was thinking that the standoffs might work well with Arduino boards to keep things a bit more secured when stacked.

@jameshunt2141

7 жыл бұрын

yep thats it, 5mm hole in case and 3.5mm hole in pcb or used to support board to board interconnects

@nrdesign1991

7 жыл бұрын

Those are designed with sheet metal casing in mind. We use these at work to mount controller circuit boards in industrial cooling equipment.

Do you ever build anything with half of China's silicon reserves now in your basement?

@ritvikvaishnav3472

5 жыл бұрын

LMAO

The solder wick is interesting, first use it to remove solder from something and then use it as "high" power cable XD

That red switch on the OP AMP PSU says: ±5v high current switch (and then low voltage: 5V output can make the output current up to 200mA)

Nice selection, Jules :D It looks like that breadboard PSU has separate supplies for the top and bottom rails, and voltage switchable, too :) PS: the "One LED Mmmmuuugh" absolutely had me rolling! You're a very awesome and very funny guy :D

Julian, around 6:25, the image with the chinese writing, if you have a smart phone you could use Google Translate app with live camera mode to translate the text. I have to use it for my work to translate documents sent through as I only read English. It's worth bearing in mind that its about 90% accurate, but it makes more sense than the original language.

Got some of that soldering wick, I love it! Great stuff, I do use it with flux which makes it work much better.

Perfect timing! Thanks!

It was my postbag day too! Got lipos, ssr relays, prototype boards and solar panels :D

Can you poke a soldering iron at those tweezers? Just to see how heat resistant they are.

Thanks for the E Bay URLs. That makes get some on those things, without searching.

Jules you're a good craic, enjoy your vids. Addicted to ebay you are!

I need a 5v regulator with android socket few weeks ago i found loads now i cant find any, any ideas plz?

PC mic's are just 2 wire, usually the tip and ring are connected together, the signal is also the power. If you ever want to use one on a project, the project would have a resistor to + and a capacitor in series with the input, check 'electret mic amplifier' circuits. Those spacers are intended for things like a dvd player, it goes through a large hole in the case bottom, then you can put the board on top.

@PaulJosephdeWerk

7 жыл бұрын

Sparky Projects PC Mikes can be stereo, hence the TRS connector. Although a simple mike will be mono and have the ring and tip tied together.

I'm prototyping an audio amp, and am a bit confused. Would I hook up +12volt and ground for power, or -12 volt and +12? (Ground meaning true earth ground)

I've had some packages with the double label recently. I can only assume that packages are being sent from China to a local distributor and then sent on internally. Perhaps it's helps on items being claimed as lost, or import issues or something. Really not sure but it does seem to be on the increase. Royal Mail are increasing there checks for prohibited items and are getting more keen on a return address they can contact in case of issue - perhaps that has something to do with it.

So you're saying those chips were as cheap as...?

@JulianIlett

7 жыл бұрын

+Paul Sengupta 😁

@himselfe

7 жыл бұрын

Beat me to it!

Hi Julian i have quite a few breadboards but i do projects with all different voltages bit all i can find is the 3.3volt and 5 volt supply, it would be nice to have an adjustable supply say up to 20volts @ 1amp for amp projects etc.

you can also get the pcb supports with sticky pad feet. great postbag Julian 👍

hi, i got the same tweezers from alice, they are not very heat resistent... i broke 2 becouse i used them while soldering and they melted

sir when will u make a video on that globe styled pov kit which was in postbag #81

great video, subscribed !!! something about the nylon spacer thingy: I suggest you first put the spacer through an enclosure chassis (5mm hole), then you add the board. This way round you can actually mount any board, even the LED stripe.

I'd like to know more about that little unit that you plugged into the breadboard. And, that power supply seems to be missing some connectors that were shown in the ebay listing, yet you didn't comment on that. What's up with that?

I have run into the different colors for the breadboards. Really fun (as in horrible) when you stack the power rails on one side.

put a 5mm hole in a project box at each PCB hole and the plastic standoffs would pass through the project box hole and then have a non conductive standoff to mount your pcb

can't find a decent clip probe for multimeter, any suggestions?

I tried the Google Translate thing too - I came up with "Dogs say giant flow said giant 'charge pump". Not much help!

When I build my breadboards, I use hermaphroditic standoffs. #4 and #6 are the two sizes I like. Half inch and quarter inch are good lengths to use, depending on the height of your components. You can get them in stainless steel, aluminum (aluminium) and nylon. Hermaphroditic means that one end is male, the other female. You can add them together to get any length desired. By putting these on your vector board, it looks like a four poster bed. (8 standoffs total) Then when you flip the board over to solder on the bottom side, you don't bend up all the tru hole components on the top side. When experimenting and changing parts lot, by the time you are done, it looks like the board was dropped on the ground and kicked around a bit. Putting the standoffs on both sides protects everything from getting beaten against the table top. The standoffs are more pricey than the plastic rivets, sure. But, you retain them for the engineering phase only.

What are you going to use for carrier for the vocoder? Just wondering.

Watch out for those breadboard PSU's had 2 of them and the 5v red failed on both of them dumping 12v straight to the 5v in on some arduino's. Needless to say they didn't work after that, however the 3.3v output carry on as normal.

The bottom clip on the standoffs are to be feed through thin sheet metal like a computer case or just a sheet to mount your devises on. Hence the larger hole size.

generally those psu's only do 5v or 3v3 dependent on where you put the jumpers. you could have 5v on one side and 3.3v on the other rail. 1 issue i found is that they dont fit old breadbords!

its a wonder that big bag got to you at all with all the details blacked out well done British GPO

@Anvilshock

7 жыл бұрын

What's more of a wonder is that it got through Customs at that size. I once ordered bits like these, Nano compatibles, Dupont wires, breadboards, transistors and other components worth 70 quid, all squished in a tiny box not much larger than a pack of Tetley's, and the fuckers made me come in during work hours, bring a print-out of the order confirmation, open it, sign a ton of paper, watch it be sent off by post to some idiotic investigation bureau, eventually pay the VAT equivalent as import tax, get it lost in transit because now the Chinese tracking number was no longer valid, have a lot of hassle with the Lost Mail "service", get told I'd have to ask the SENDER to call for the Loss of Mail investigation because it was international mail, when it finally was dropped at my door with no comment after more than a month of delay. I will NEVER EVER order anything requiring a wrapping more substantial than one of those stretchy PE bags and a layer or two of bubble wrap. Customs and Mail. Incompetent sack of tossers, the lot.

The plastic standoff's usually mount into a metal case (PC for example) locking in the big mount and the PCB would use the 3 mm part

The ± marked inputs on the "Op amp power supply" is for AC voltage. So that's why there is a common mode choke on the board. Nice option for both AC and DC.

Surely the larger part of the stand-off is for mounting through a case?

Sorry for the noob question, but what is negative voltage?

PCB supports are of course designed to go first through a larger hole in the outside of a case, then through a PCB inside the case.

Hi Julian, I think I remember you having an Android device (a tablet if not both tablet and phone). Have you considered using Google Translate for the Chinese translations? It's great on android devices with a camera, you can point the camera at the Chinese symbols and it does a good job of translating that live onscreen. I use it all the time for my postbag goodies.

quick question... on your solar battery setup, are the batteries all directly in parallel or do you have swamping resistors in place to ensure the batteries do not charge each other as then you would have big problems with the charging and discharging of the batteries. Just a suggestion :) Guiding diodes might be a good option too but expensive and the voltage drop is a pain.

@JulianIlett

7 жыл бұрын

+Julian Curmi I have 6 gel batteries in parallel. No resistors or diodes.

@julianpiper240

7 жыл бұрын

So no problems with the batteries? Just asked my grandfather about putting some 12V Lead Acid batteries in parallel and he said i should use swamping resistors.. Maybe the different battery chemistry plays a role in the ESR of the batteries

The "nylon feet" are motherboard standoffs that go through the bottom of the case from the outside. where the case has holes that aren't threaded, usually only very old computer cases.

I've found cheap breadboards to be very difficult to work with - almost impossible to insert into some of the holes.

Love the video Julian, we gonna get a solo vid on the QD-188?

I think they meant "rivet" instead of "river." Multiple sellers simply copied the English item description from each other.

the way those plastic standoffs work is you have a 5 millimeter hole or whatever on your bottom plate you push the thing all the way through to the second set of barbs and then you put the board you don't want to touch the case with the three-and-a-half millimeter holes on the top barb. there used to keep motherboards off metal trays in computer cases if you don't want to mount with metal standoffs and the screws or for some reason you didn't want the case ground to tie to the board ground like it would with a metal standoff.

guys, i have some nice usb power banks, how can i boost the 5v out puts up to say 12v? so i could power a 9v or 12v router in case of power outages etc?

@-yeme-

7 жыл бұрын

there are cables designed for that specific purpose, heres an item number for ebay UK 152160605475 or you could get a dc boost module with adjustable output that would do the same thing and you could use for other things when the power isnt out

@cctvuser

7 жыл бұрын

cheers buddy glad i know i can do this now

@paulsengupta971

7 жыл бұрын

Have a look at Julian's "boost converter" videos.

@cctvuser

7 жыл бұрын

again thank you, some crazy cheap deals on power banks on amazon lately, and wanna use them to full potential

I really like the "High-power Simulation OP AMP Power Supply Module 3V ±5V ±12V ±15V 200mA Output " but apparently its no longer available unless someone has the search secret ?

BTW, the 102 power supply has dual rails... there's a jumper on each side to select 3.3v/5v

with the breadboard power supply, yes the ground lines will be tied together, the power lines will be tied together only if they are both on 5v or both on 3.3v.

Hi Julian, have you experimented with lasers before?

The white standoffs used to hold motherboards in PC cases back in the day.

@hernancoronel

7 жыл бұрын

The ones I used where slightly different with a flat base and rounded head that threaded through the pc case.

@davidstech1445

7 жыл бұрын

It was a pain in the you-know-what to get all of those bloody things lined up.. And the IRQ settings. I hated doing that.

@KuntalGhosh

7 жыл бұрын

Chris G i still put these where i cant fit a stand off it helps in supporting the motherboard

that nylon support is designed to be put thru a second hole julian so you could put it thru a second larger board to support the neo pixel strip easily

How could a capacitor switching circuit should be used with opamps? Even tho it has linear regulators, it's not the ideal way of doing that. I think some of the switching noise will get thru the output, so.. Anyways, nice video!

it sounded like you were in the next room and it was raining outside 😂😂😂

Can you have the power level indicators plug into the bottom of the filter boards?

@JulianIlett

7 жыл бұрын

Not really - the filter boards are near the top of the front panel. But I've decided it'll be OK to have the level indicators lying down.

Hi, the bobbin is used to have a good electrical impedance in any senses - is a power supply module ( the basic way ... ). 1.can you tell me why is not just one package - you use multiple buy processes of ebay? 2. I want to see one video tutorial about that ammeter device. 3. what yo need a 1 mhz timing clock ? 4. I want to see more about your projects. 5. what good is the microphone ( capacitive ?) Thank you. Best regards.

Bought the solder wick recently. Its not close to 1.5 meter

My ears pricked up when I heard INA219👍👍👍👍👍 May I request you also add in the INA 169. I know your a solar man. I'm working on a solar batt setup using the Ming He controller. Could you possibly include this and how we can use it for measuring a 24v system. Please kind sir Once again thank you Julian

11:11 you can use these to actually MOUNT PCBs. You push them through the bottom of a project enclosure or metal case and then you can mount PCBs in a simple and isolated manner. This is how I learnt to know them :)

thank you for showing me the end snap off. thanks

3:29 that thing looks like it's been burned. Also have it's lower pins been soldered correctly? (edit: later angles suggest it might just have flux smeared on it.)

@Anvilshock

7 жыл бұрын

Wish you had also edited out the apostrophe in "have it's lower" ... But I guess I have to count myself lucky with you having found the Edit button instead of replying to yourself like every other moron on KZread ...

@roidroid

7 жыл бұрын

Is that incorrect English? The meaning was: The pins possessed by the entity known as "IT", eg: Anvilshock's lower pins. i understand there are alternate meanings such as "IT IS" or "IT HAS", but the true meaning is gained via surrounding context, yes? edit: ok i did a read and learned that Possessive Nouns use apostrophes differently to Possessive PROnouns/Adjectives. Fascinating.

@Anvilshock

7 жыл бұрын

Yep. Nobody ever said English was logical.

For the thingies with the LEDs, couldn't you just have right-angle sockets and plug them in on a board mounted upside-down? Same effect really if you can pull it off. Shame that, how they were assembled but the alternative _I guess_ would be to roll your own board and transfer all the components on there.

The jumpers by the pins on the breadboard psu set the voltage for either side :)

Julian - I was wondering if you have taken a look at the DPS5015 yet?? I just ordered one, and thank God I made the mistake I did with my last buck converter (frying it :( -), because it was less expensive, and as a result, will be much more careful with this new and improved converter. My goodness Julian, you REALLY should check this one out, it is incredible - No More pushing buttons (it has a rotary stepper) - much much better for sure, and so much more information on-screen (Volts, Amps, Power, Input Voltage, Set Voltage, Set Amps - All on one screen, and in color). I would LOVE to see you do a video review on it for sure. I love watching your videos Julian, and still can't believe you haven't picked up one of the DPS5015 (50v 15a) converters yet.. Please have a go at it, I am excited about getting mine. Steven

Those tweezers are anything but heat resistant. Was trying to fiddle off some surface mount component with one of them and the plastic was soft a lot faster than the TSOP component. Also, rather fragile.

the bottom hole of the stand off ( lower barb) is to go thru something else .. like a case , then put your board held off (stand off)

@darrenchapman7203

7 жыл бұрын

I was just about to say the same thing, they are perfectly suited to maintaining high voltage separation, most of the ebay relay modules are better off mounted with these clips as bolts are dangerously close to the high voltage side of the relays.

Julian, for those VU meters couldn't you just flip that pin header round the other way and lay them flat on the project? I mean they don't have to stand up do they? That way they could lay down flat and it wouldn't matter so much which orientation the LEDs were laid out in because you can account for that where they plug in. I'd just desolder the headers and flip them round the back side of the board. Easy peasy...

@JulianIlett

7 жыл бұрын

That's not a bad idea - view them by looking down on the vocoder from the top - I like it :)

Does alice send from U.K.?, you order almost all thing from alice :D

Like others have pointed out, those clips are made to go through a 5 mm hole or so first and then through a 3 mm hole on the board.

The first item does not link the rails together. It will provide a 5v and 3v rail, and you can set it with jumpers. extremely handy little board

Not sure if anyone else stated this but the bread board power supplies do not link the ground/power strips. They have dual outputs which are 5 and 3.5v (one being selectable if I recall). I had to replace a regulator on one (cos a quarter and a finger ;) ) Microphone = -$0.99 ;)

Those standoffs I've used before. Put them through holes in the bottom of an enclosure and mount your board on them.

Late night Julian, nice.....

@JulianIlett

7 жыл бұрын

KZread throttled my uploads - which held me up :|

@TobyCowles

7 жыл бұрын

Julian Ilett KZread or your ISP?

@JulianIlett

7 жыл бұрын

KZread. I upload all the individual shots then assemble them using KZread Editor. This time I uploaded more than 50 small videos and that triggered some sort of spam detector.

Use the standoffs for when you are using a metal case so you have garanteed seperation, and the board is modular without the use of screws. does not necesarilly need to be a PCB

u can buy the spectrum analyzeer with smd LED its mch faster than all the vu meters n opamps

i didn't have much luck with solderwick, but i heard that the expensive stuff is really good, and the cheap stuff is unusable...

The supports, go through a larger hole on the mounting board, then clip the PCB with a smaller hole ontop.

I'm surprised no one has suggested the adhesive PCB supports, same principle but with adhesive back.

If you use the breadbox PSU be aware of + / - it only goes correctly on one end to line up with red / blue!

with those stand off's and your neopixel board, push the stand off fully through a bottom board with a slightly larger hole and the fit the neopixel board on the upper part of the stand off

When you purchase something on ebay, you could use the note feature on the purchase history to add a link to the appropriate comment. Probably easier than keeping a separate notebook.

Not sure why it's 1.99 USD shipping to USA but free to U.K.?

A little advice, check the datasheet on those breadboard supply linear regulators and mark those boards with their power ratings. It must be extremely low, because I've had one go bang on me, and another quickly lose regulation. I don't find them very useful.

@madbstard1

7 жыл бұрын

Got one of them along with the same breadboard. Think the whole kit was the exact same, just from a different supplier. It was supposed to give 3.3V and 5V with a jumper change. Now my one only gives 3.3 and 8.9V. This is a known problem with the YuRobot Power MB V2. Think it only happens when you use a 12V input (or higher......which I didn't exceed). Guess it'll be handy if I need 3.3 or 9V for some small project :D

@M0UAW_IO83

7 жыл бұрын

tiger12506 yes, I've had the same thing on the first use, the 5v reg fails and gives an unregulated output. threw it away and built my own.

@M0UAW_IO83

7 жыл бұрын

madbstard1 some of the clone 1117 regulators are only rated 10v input and fail instantly

@madbstard1

7 жыл бұрын

Wish I'd known that before I plugged it in lol. Mind you, it did work fine for a few days before the upper output went arsewise. Seems to be still putting the 3.3 out fine, but think after this I'll stick to batteries :D

@dos541

7 жыл бұрын

I had the same one as Julian and blew up the 5v one the first time I used it but I think the output did get shorted I just cut the regulator out of the board the board makes a nice 2.1 mill to breadboard connector

Could you show us how you organize all your eBay stuff? How much place does all of it takes nowadays? :)

@JulianIlett

7 жыл бұрын

A lot! The main problem is finding things. I've got some multi-compartment storage boxes coming from China soon :)

How on earth did you get those feet so fast? :)

take the mice apart and see if you can do any filtering on that hiss? would be an interesting video

The plastic/nylon stand-off legs/feet look like they have 2 levels; as if you can possibly push them through to another level & maybe allow you to hold two boards together.

The solder wick they sent you is a different brand and not made in Japan.

The breadboards and the power thingy... *I have that exact set of parts*

The 741... my first ever IC back in 1978 (I think)

I love these beeadboards, and tried a few "psu" boards and this black one is not the most pravrical. Not that useful input sockets, no fuse, etc. I bought a slimer design, with a polyfuse... stull managed to blow it up( than what the fuse is doing?) but I learned my lession and bought some replacement voltage regulators :D

@Bence507

7 жыл бұрын

www.ebay.com/itm/1PCS-MB102-Breadboard-Power-Supply-Module-3-3V-5V-For-Solderless-Arduino-/252095625040?hash=item3ab211f750:g:An0AAOSw9r1V-7Dq The mini usb still bothers me - I prefer the micro one, but I don't use that port anyway...

I bought around 80 555's on ebay kleinanzeigen for 10€, they are mostly 7555, also smd ones, standart 555, all sorts of them

Interesting mix. For the op amps I went to Distrelec and got a few hundred full spec modern devices for a very good price by chasing special offers. The 741 is really past it and as for the others are they what they say they are? The dual rail PSU is all well and good but most modern designers go for single rail these days. There is a danger of experimenting in the 1980s with some of these chips. Good modern devices from a local quality supplier is not that much more expensive but you will learn more than struggling with low spec possible rejects from China.

Remember to put jumper in the rails as half way through the board the red and blue lines are split so power only goes half way along the power rails,remember jumpers! :-)

They can be pushed through a baseboard first then onto the pcb

at 15:10... I have a pair of the one style of those tweezers and they are definitely not heat resistant enough to hold a part while soldering.

@billfield8300

7 жыл бұрын

perhaps I should say similar....

@Anvilshock

7 жыл бұрын

Perhaps you should use the Edit button ...

The way you show those VU meters arranged in a row you will only see the LED's from the side. I'm afraid you won't see much light from them, as they emit most of the light through the lens on top.

@JulianIlett

7 жыл бұрын

Good point. I'm leaning more towards having the boards lying down now :)

Only trouble with that model breadboard is the side rails are split half way down. You can tell by the break in the red and blue stripes.

@JulianIlett

7 жыл бұрын

Ah, that's useful to know - thanks Robert :)

@ziiluduz

7 жыл бұрын

Has anyone suggestions which Chinese sellers are reliable to get good quality breadboards from? Couple of breadboards I got some years ago are OK, but recently ordered ones were quite shitty. Or is it always a lottery?

ΗΕLL YEAH!! we must sturt some projects because i have lot of stuff sitting in my storage boxes..