Hi boss. As we used to say the electronics blessing. In the name of the Anode, and of the Cathode, and the holly smoke, Ohm. Be safe there. Mike in Maryland.
Nice to see someone else get their nostrils 'cleaned' out. Watching the soldering operation made me feel better; I thought I shake a lot when holding the iron ! 😁
Rule of thumb for V Reg dropout voltage is +2V. Rule for best ripple rejection is +3V. See the data sheet fine print, app notes and test graphs. The engineers test at +3V.
I always wanted to go to a chip manufacturer as i want to know how they decide how much smoke to pack in to components. And in all the electronics books i've read i've not once seen how the internal smoke is used to transport electrons or holes. Does it come in a P-Smoke or N-Smoke type. it have an inportant roll as, as soon as it leaks out the electrons stop flowing.
It happens. Now you get to make a video to find out what went wrong. Best ones. “ Never give up, unless the tracks are all burnt.” “We’ve got the technology, we can fix it” 😅 love your work. Regards Ron
Gees...I thought a real 7805 could take....31 volts... But all those LED segments suck up current...especially if the crappy unit believes it is measuring 8.888 volts... So yap I bet like that 5 volt was a 0.2 max unit...so Imasai Guy of a few volts over 5...is plenty.. But if it was rated for 0.25 watts... Then I am sure it's smoke has entered our atmosphere.. 14 -5...9 vdc drop at the mini 7805 wantabe
Well that's another fine mess you've gotten yourself into stan....ley 😀 I imagine the left chip is an A to D converter and the right chip a 3 to 8 line decoder. Did you get it working?
It is always entertaining & I learned a little about surface mounting. Happy Pre-Tday 2022! I wonder what the power rating is on the 0.33 ohm current shunt resistor... Maybe 0.5 watt...? But that be 1.23 amps max...or a wimpy ammeter... It didn't even measure a load ... Perhaps the magic has left a resistor....and no other component? I say 14 vdc in .....Maybe the 9 volt drop across the 5v fixed 3 terminal regulator...killed it Crappy display...but nice integration It's time for a postmortem...? Or has my dad would say... it is not worth the powder to blow it to hell.
I am always amused by the fact that you say exactly the same things I would say about all of this. We appear to have a very similar electronics understanding and perspective on this stuff. But I still cringe every time I see you clipping off a lead without holding it.
Hi boss. As we used to say the electronics blessing. In the name of the Anode, and of the Cathode, and the holly smoke, Ohm. Be safe there. Mike in Maryland.
The smell of magic smoke in the morning.
Nice to see someone else get their nostrils 'cleaned' out. Watching the soldering operation made me feel better; I thought I shake a lot when holding the iron ! 😁
karma for reflowing couple of 0.95mm pitch ICs ;D
Rule of thumb for V Reg dropout voltage is +2V. Rule for best ripple rejection is +3V. See the data sheet fine print, app notes and test graphs. The engineers test at +3V.
Yes, when the magic smoke escapes, the magic of the function also leaves with it, it doesn't always work out, I know that very well 🤪
Nice day 🙂 Tom
Well you've got a few additional parts for another project...
IC3 pin 10-11 wonderfull......
I always wanted to go to a chip manufacturer as i want to know how they decide how much smoke to pack in to components.
And in all the electronics books i've read i've not once seen how the internal smoke is used to transport electrons or holes. Does it come in a P-Smoke or N-Smoke type. it have an inportant roll as, as soon as it leaks out the electrons stop flowing.
it is similar to dark matter
Lol !...cheers.
Hi Mate. :)
@@frankowalker4662 Howdy !
It happens. Now you get to make a video to find out what went wrong. Best ones. “ Never give up, unless the tracks are all burnt.” “We’ve got the technology, we can fix it” 😅 love your work. Regards Ron
Voltage limit. I’ve had Chinese 555 timers that smoked at 7volts.
Gees...I thought a real 7805 could take....31 volts...
But all those LED segments suck up current...especially if the crappy unit believes it is measuring 8.888 volts...
So yap I bet like that 5 volt was a 0.2 max unit...so Imasai Guy of a few volts over 5...is plenty..
But if it was rated for 0.25 watts...
Then I am sure it's smoke has entered our atmosphere..
14 -5...9 vdc drop at the mini 7805 wantabe
Yeah, you're right - I smudged that voltage regulator. Sorry.
My fingers also tremble while doing work on miniature things..😅
Excuse me sir, would you mind not smoking. :)
Well that's another fine mess you've gotten yourself into stan....ley 😀
I imagine the left chip is an A to D converter and the right chip a 3 to 8 line decoder.
Did you get it working?
no
A very good example of chinese kits, with chinese components and WITHOUT ANY INSTRUCTIONS AND SCHEMATICS.(Remember Heathkit?)
LOL.
You can buy those already assembled, LOL just sayin'
That's terrible. Ha ha ha.
It is always entertaining & I learned a little about surface mounting.
Happy Pre-Tday 2022!
I wonder what the power rating is on the 0.33 ohm current shunt resistor...
Maybe 0.5 watt...?
But that be 1.23 amps max...or a wimpy ammeter...
It didn't even measure a load ...
Perhaps the magic has left a resistor....and no other component?
I say 14 vdc in .....Maybe the 9 volt drop across the 5v fixed 3 terminal regulator...killed it
Crappy display...but nice integration
It's time for a postmortem...?
Or has my dad would say...
it is not worth the powder to blow it to hell.
SMD: ruclips.net/video/aoG15wpobF4/видео.html
🙈🙈🙈🤦🤦 leave the electronics kits for the young generation maybe they better on it 😂😂😂😂
I am always amused by the fact that you say exactly the same things I would say about all of this. We appear to have a very similar electronics understanding and perspective on this stuff. But I still cringe every time I see you clipping off a lead without holding it.
You should show how you solder the SMD parts - it would be helpful for beginners.
I have a video on that: ruclips.net/video/aoG15wpobF4/видео.html