This channel is for those who are interested in electronics. It includes projects for the hobbyist and tutorials as well as test equipment and electronic product reviews and teardowns.
Great explanation! What I do not understand is the transistor configuration. From my perspective the npn transistor is reverse connected. Emitter shall be towards ground. Please correct me if I am wrong.
@oguzhanfak222414 күн бұрын
Hello, I know that a lot of time has passed, but the content you have prepared is still very useful. Thank you ! I wonder why BJT's emitter is connected to -5v? In this case it sounds like the BJT will always be transmitting? It seems like it would be more appropriate if we connected it to ground potential instead of -5v. I probably didn't fully understand the principle of its operation. Can you help me with some keywords for a deep research?
@pauld705617 күн бұрын
Very informative. I've just asked an ebay seller to refund me as what I purchased is obviously the fake one. Pity I never saw this video first.
@hewking18 күн бұрын
hi can you please give me an idea about the cost of this unit?
@namenotshown927727 күн бұрын
I have oled with P24B rather than P24c what is the difference?
@franciscofernandes7526Ай бұрын
Good project worth building. Cheers
@VEC7ORltАй бұрын
Hey! How are you holding up? I think one of the best uses for this one would be combining it with the milliohm meter and adding high impedance front end.
@juliojaciuk5191Ай бұрын
its a very good..!!
@guacamoleman87Ай бұрын
I've been using a fake for years!!! Thanks for showing me how to calibrate it
@randycoolbaugh1408Ай бұрын
And of course .... guess which one I bought.... Wouldn't have it any other way.
@Qazwsx-sr3yyАй бұрын
Hello, congratulations. I was wondering, how old are you? Until what age can the electronics hobby be continued? Thanks.
@bigworknoscales2 ай бұрын
Awesome job!
@grahamhall26622 ай бұрын
Brilliant. I know time has moved on but really, Wow I understood this , excellent teaching and demonstration. Thank you.
@danielb81972 ай бұрын
I have made this unit, with all 9 episodes combined and LOVE this thing. Thank you VERY much for all your hard work. ( ps I'm in New Zealand). Cheers
@Skaaaaal2 ай бұрын
You are inspiring me. I build a variable resistor project with optocouplers and resistors and now I want to switch to mosfet ohmic region!
@terencebarfield58642 ай бұрын
You never talk to me
@FelinoAnticomunista2 ай бұрын
Hi: Best wave length to cure white UV paint PCB ??? In my case, green standar pcb uv mask cure quikly in a few minutes with nails-curing (365nm) but white paint... takes hours and hours :S
@narongrachmareongsit19782 ай бұрын
❤😂🎉😢😮😅😊 ไฟแอดพ์. ???
@lukaswolf30122 ай бұрын
Hello, looks like youve mixed up internals, while reassembling. Fake unit is not able to calibrate. Theres no calibration option at all. My is exactly the same as your fake one, witnout "Skyarc" logo. Fortunately voltage reading difference is -0,1V so it stops charging LiPo at 4,1V not overcharged it so no damge. Thanks for your coprehensive video. I was truly disapointed to know, i ve bought fake.
@fritzcanaway61863 ай бұрын
where is the part 2? please I hope you come back.
@progamermat3 ай бұрын
You are awesome, keep going👌 May our god give your strength and health to do more awesome work like this.
@victoribarra99303 ай бұрын
One of the best electronic channels
@techrah3 ай бұрын
7 years later, I feel like I'm late to the party. Thank you for this excellent series! I'm learning so much. I have a question on the UF5408 diode place in parallel with the 0.1 ohm sense resistor. According to a datasheet I found, this diode is an ultrafast RECOVERY rectifier diode and there are specs for the reverse recover time in nanoseconds. However, in this project, it's the forward voltage that counts when there is an over-voltage. So wouldn't a standard fast-switching diode be more appropriate? What about common diodes like 1N4007? Can those be used or are they not fast enough?
@johnbee15743 ай бұрын
very good review, interesting side note some of the later copies did away with the calibration function something I thought was essential to have
@kaleoride3 ай бұрын
Very high quality content. Wonderful
@Hugh_Franklin3 ай бұрын
Any chance of buying one of these as a parts kit? I can do all the soldering and assembly. OSHPark requires a minimum order of 3 PCB boards. An MK2 kit (Video #44) would be of interest as well. Thank you. I really enjoyed the project.
@DrTalesMoraes4 ай бұрын
Thanks.
@sirajhussain7914 ай бұрын
EXCELLENT
@sirajhussain7914 ай бұрын
Excellent
@tommygadget21824 ай бұрын
Very nice video. More than adequate for the hobbyist. For more serious applications, reference aging, drift, and temperature/humidity effects need to be considered. Also, you need to have friends with calibration equipment to really get those ppms :) Thanks for taking the time to post this video.
@elsaarmstrong-zp6ng4 ай бұрын
This project is worth doing in my opinion. I still have an old signal generator audio and am bands that cost me over £200 back in 70’s so for £15-20 this is well worth it I think! Fraser
@JohnUsp4 ай бұрын
Hey Mr. Louis, please, return to KZread, your channel is the best. Much Love.
@ovalwingnut4 ай бұрын
You R ""The Resistance Whisperer". Really wonderful project! Sorry I'm so late to the party. It is amazingly clever, well thought out and explained - with amazing detail! I must posses this "high quality test unit" Thanks so much professor. Cheers from So.CA.USA 3rd House On the Left.
@kennywang62225 ай бұрын
Great idea and explanation. Thank you so much.
@arnopfuetzenreiter95365 ай бұрын
👍👍
@Stinktierchen5 ай бұрын
Nice project BUT... a huge BUT. Almost all of the parts there used. The Opamps the reference and so on. Are VERY hard to get to. Especially this CADDOCK 1778-C681 is almost impossible to get and it is super expensive. A great project and well designed. But it is almost impossible to build it for a normal price as the parts are too difficult to get.
@jimmylightfinger12165 ай бұрын
A well paced lecture on how a project is developed: from the start block diagrams and their relationships, Then a purposed schematic to iron out some obvious kinks and electrical issues, to a breadboard to test the theories calculated prior, make adjustments or changes to anything outside desired specifications, fine tune, final testing, prototype and test, all with jelly bean parts...marvelous. Spot on.😊
@jimcoelectronicsystemsengr3255 ай бұрын
Thanks sir
@darkknight1455 ай бұрын
You mentioned the smaller power supply, but one thing you didn't mention is that it also has a lower power rating. It you try to charge at the full 80 watts the power supply will eventually cook .
@michaelbluecastlestudio6655 ай бұрын
Damned, after seeing your video I need to build one like yours. I really like it. Thanks for sharing 🙏🏻
@victoribarra99306 ай бұрын
I mean, this is unbelievable useful. And enriching.
@victoribarra99306 ай бұрын
Thanks so much for sharing your very valuable knowledge with all of us. It is extremely helpful.
@victoribarra99306 ай бұрын
Thanks. Better later than never hehe.
@pault65336 ай бұрын
I put a heat sink on the bottom side of the PCB where the device transfers the heat. Some ppl adhere it to the top of the chip which makes no sense to me.
@jamesvitaly23096 ай бұрын
you didnt tell the arduino nano code
@rakeshkumarsharma10926 ай бұрын
Excellent Excellent Excellent
@christopherwilliams11126 ай бұрын
It it possible to ask Louis if he has could upload links to the Display and Power Supply Section of his Function Generator Mk 2 Project please? I have enough information to build the Main PCB and set it up, but its not clear what type of display is needed or the power supply voltages are! Chris Williams
@kevinhart686 ай бұрын
Check out his website on his main channel page.
@grahamnichols14166 ай бұрын
These are the gold standard of tutorials.
@grahamnichols14166 ай бұрын
Really nicely explained. Here, take my subscription.
@erwe10546 ай бұрын
Это любой сможет, настроить NEO на10 МГц. Я думал у вас будет алгоритм синхронизации по сигналу 1PPS
Пікірлер
Great explanation! What I do not understand is the transistor configuration. From my perspective the npn transistor is reverse connected. Emitter shall be towards ground. Please correct me if I am wrong.
Hello, I know that a lot of time has passed, but the content you have prepared is still very useful. Thank you ! I wonder why BJT's emitter is connected to -5v? In this case it sounds like the BJT will always be transmitting? It seems like it would be more appropriate if we connected it to ground potential instead of -5v. I probably didn't fully understand the principle of its operation. Can you help me with some keywords for a deep research?
Very informative. I've just asked an ebay seller to refund me as what I purchased is obviously the fake one. Pity I never saw this video first.
hi can you please give me an idea about the cost of this unit?
I have oled with P24B rather than P24c what is the difference?
Good project worth building. Cheers
Hey! How are you holding up? I think one of the best uses for this one would be combining it with the milliohm meter and adding high impedance front end.
its a very good..!!
I've been using a fake for years!!! Thanks for showing me how to calibrate it
And of course .... guess which one I bought.... Wouldn't have it any other way.
Hello, congratulations. I was wondering, how old are you? Until what age can the electronics hobby be continued? Thanks.
Awesome job!
Brilliant. I know time has moved on but really, Wow I understood this , excellent teaching and demonstration. Thank you.
I have made this unit, with all 9 episodes combined and LOVE this thing. Thank you VERY much for all your hard work. ( ps I'm in New Zealand). Cheers
You are inspiring me. I build a variable resistor project with optocouplers and resistors and now I want to switch to mosfet ohmic region!
You never talk to me
Hi: Best wave length to cure white UV paint PCB ??? In my case, green standar pcb uv mask cure quikly in a few minutes with nails-curing (365nm) but white paint... takes hours and hours :S
❤😂🎉😢😮😅😊 ไฟแอดพ์. ???
Hello, looks like youve mixed up internals, while reassembling. Fake unit is not able to calibrate. Theres no calibration option at all. My is exactly the same as your fake one, witnout "Skyarc" logo. Fortunately voltage reading difference is -0,1V so it stops charging LiPo at 4,1V not overcharged it so no damge. Thanks for your coprehensive video. I was truly disapointed to know, i ve bought fake.
where is the part 2? please I hope you come back.
You are awesome, keep going👌 May our god give your strength and health to do more awesome work like this.
One of the best electronic channels
7 years later, I feel like I'm late to the party. Thank you for this excellent series! I'm learning so much. I have a question on the UF5408 diode place in parallel with the 0.1 ohm sense resistor. According to a datasheet I found, this diode is an ultrafast RECOVERY rectifier diode and there are specs for the reverse recover time in nanoseconds. However, in this project, it's the forward voltage that counts when there is an over-voltage. So wouldn't a standard fast-switching diode be more appropriate? What about common diodes like 1N4007? Can those be used or are they not fast enough?
very good review, interesting side note some of the later copies did away with the calibration function something I thought was essential to have
Very high quality content. Wonderful
Any chance of buying one of these as a parts kit? I can do all the soldering and assembly. OSHPark requires a minimum order of 3 PCB boards. An MK2 kit (Video #44) would be of interest as well. Thank you. I really enjoyed the project.
Thanks.
EXCELLENT
Excellent
Very nice video. More than adequate for the hobbyist. For more serious applications, reference aging, drift, and temperature/humidity effects need to be considered. Also, you need to have friends with calibration equipment to really get those ppms :) Thanks for taking the time to post this video.
This project is worth doing in my opinion. I still have an old signal generator audio and am bands that cost me over £200 back in 70’s so for £15-20 this is well worth it I think! Fraser
Hey Mr. Louis, please, return to KZread, your channel is the best. Much Love.
You R ""The Resistance Whisperer". Really wonderful project! Sorry I'm so late to the party. It is amazingly clever, well thought out and explained - with amazing detail! I must posses this "high quality test unit" Thanks so much professor. Cheers from So.CA.USA 3rd House On the Left.
Great idea and explanation. Thank you so much.
👍👍
Nice project BUT... a huge BUT. Almost all of the parts there used. The Opamps the reference and so on. Are VERY hard to get to. Especially this CADDOCK 1778-C681 is almost impossible to get and it is super expensive. A great project and well designed. But it is almost impossible to build it for a normal price as the parts are too difficult to get.
A well paced lecture on how a project is developed: from the start block diagrams and their relationships, Then a purposed schematic to iron out some obvious kinks and electrical issues, to a breadboard to test the theories calculated prior, make adjustments or changes to anything outside desired specifications, fine tune, final testing, prototype and test, all with jelly bean parts...marvelous. Spot on.😊
Thanks sir
You mentioned the smaller power supply, but one thing you didn't mention is that it also has a lower power rating. It you try to charge at the full 80 watts the power supply will eventually cook .
Damned, after seeing your video I need to build one like yours. I really like it. Thanks for sharing 🙏🏻
I mean, this is unbelievable useful. And enriching.
Thanks so much for sharing your very valuable knowledge with all of us. It is extremely helpful.
Thanks. Better later than never hehe.
I put a heat sink on the bottom side of the PCB where the device transfers the heat. Some ppl adhere it to the top of the chip which makes no sense to me.
you didnt tell the arduino nano code
Excellent Excellent Excellent
It it possible to ask Louis if he has could upload links to the Display and Power Supply Section of his Function Generator Mk 2 Project please? I have enough information to build the Main PCB and set it up, but its not clear what type of display is needed or the power supply voltages are! Chris Williams
Check out his website on his main channel page.
These are the gold standard of tutorials.
Really nicely explained. Here, take my subscription.
Это любой сможет, настроить NEO на10 МГц. Я думал у вас будет алгоритм синхронизации по сигналу 1PPS