Simple Electronic Circuit Hacks

[@jamesdinsmore9022]

That was a lot of fun. When I was a kid, I was too shy to talk to the TV repairmen at a shop on my way home from school; but I always found 'treasures' in their garbage. Now I'm 60, working on avionics. Still an avid electronics hobbyist.

[@0033mer]

Thanks for sharing!

[@jamesdinsmore9022]

I gained so much playing with electronics that I scavenged from broken devices. Forrest Mims guides helped a lot; and Radio Shack and the Electronic Project kits with the spring coils to connect circuits. There are so many young techs at work who seem to have never just played with electronics for fun. They lack the intuitive feel of what current is; where I know quite well what it was like to burn my fingers on an overloaded transistor!

[@muniswamy100]

There you go. Beauty lies in simplicity. I used an incandescent bimetallic lamp for flashing purposes. This 9 mins video is equivalent to at least 1 hour of studying. Great effort.

[@0033mer]

Thanks for sharing and the feedback!

[@PerScientiaAdAstra]

... brilliant. Your ingenuity is in the tradition of the work of Forrest Mims III. Just what the world needs. I for one look forward to future posts.

[@PhG1961]

Awesome ingenuity ! Especially the last one with the AC switching. Taking home old TV's from the TV repair shop... Been there, done that ! For many years... even now, I still recycle components. It's hard for me to throw anything away.

[@0033mer]

The old TV repair shops are gone now ... kind of miss them.

[@jardel_lucca]

Where else could I learn these tricks with such great didactics! Clear and eloquent presentation... Thanks a lot!

[@0033mer]

You're very welcome!

[@mad_circuits]

You had me at the relay thing. Wow. Subbed.

[@0033mer]

Welcome aboard! Thanks for the visit.

[@frankgrudge8823]

Another great video! Many thanks from Melbourne Australia

[@0033mer]

You're welcome from Vancouver Canada.

[@frankalvarez7387]

Hi i am a long time follower of your channel and i love everything you do, this is a gold mine! Can you do a video on your favorite parts that you use because you seem to have a really interesting component stash and selection that is super good, all the cool ICs and transistors seem to be in your parts bin. Maybe a video of your favorite circuits with them or just presenting them and what can be done with them, maybe even a few part series on them with 2 or 3 components at a time per video. Tanks!

[@0033mer]

Back in the day I would read all the data books I could get my hands on looking for interesting devices. Everything is now on line. Here are some sites I get my parts from. They are in Canada but you can look for similar sites in your area. I first like to support local suppliers. www.bc-robotics.com/ www.universal-solder.ca/

[@projectjam7020]

Very clever. Another great video!

[@lasersbee]

Some great hack ideas.. Have used the Flashing LED numerous times... Thanks for sharing.

[@0033mer]

Thanks for watching!

[@jayytee8062]

Some times keeping it simple is best. Good video!

[@0033mer]

Yes! Thank you!

[@MsSergey1313]

These are useful hacks, especially the last one! Thanks!

[@0033mer]

You're welcome!

[@Enigma758]

Fun and creative video!

[@0033mer]

Thanks again!

[@sanjaybhatikar]

Love it! Gold mine here!

[@0033mer]

Thanks for the visit!

[@danilofreitas1112]

Very nice ideas!

[@0033mer]

Glad you like them!

[@bassblom]

love this!

[@ibmicroapple9142]

Good stuff, some very nice ideas presented here!

[@0033mer]

Glad you like them!

[@dancollins1012]

Thanks, another good video. I thought the diode temperature and light sensing circuits were best. Are there any techniques to vary the frequency of the flasher LED (or just via component selection)? If not, it may have limited applications

[@0033mer]

The frequency of the flasher LED is fixed. It's good for clocking sequential logic for troubleshooting. For a fast clock you can use a CMOS inverter RC oscillator.

[@Enigma758]

The flashing LED uses a fixed period, so there really is no practical way to vary it.

[@AutisticBioweapon]

This was awesome

[@edwardhughes352]

Nice school to ac circuit. But I was wondering what the frequency was and can you change it.

[@alianwar128]

Hi, can you please make a video on quartz crystal oscillator, Thank you!!

[@taufeeqkhan2629]

First time I saw a two pin component which can oscillate by itself. 👌👌👌

[@ronmoz5815]

thanks you sir for your demonstration

[@0033mer]

You are welcome

[@appliedelectronicsforbiolo4495]

Dear 0033mer, thanks you for your quick and direct explanation of so many great circuits! I have one question regarding the 7805 and the number of diodes: You say that we cannot add more diodes "or else we loose our regulation" and I wonder why that would be?

[@0033mer]

This hack works because the forward voltage of the diode is fairly constant at .6 to .7 volts when turned on, but will vary with temperature and current change. The more diodes the more errors. A TL431 has a 2.5v reference and is temperature compensated so it will work better for higher in/out voltages. You can also use LEDS which have higher forward voltages depending on the color.

[@ctheroux]

Hi, thanks for the videos. A quick question: Where your channel name comes from?

[@0033mer]

I worked for an engineering company for 40 years and that was my employee number and login ID to our computer network, so it is something I will never forget.

[@alianwar128]

Led bank circuit you made ,I tried it with UA741Cp and also I used red Leds for the bank, instead of white , but it isn't working, could you suggest what could be the problem? Also the pot, im using is the rotary pot. Thank you! Love your videos..

[@0033mer]

Adjust the null pot until the LED just turns off and then block the LED bank connected to pin2 to trigger the circuit. kzbin.info/www/bejne/rKu7YWWgm7doqZI

[@gregt58]

Cool hacks. One mundane thing I have been wondering for some time now is what type of jumper wiring are you using on your breadboards and where do you get them from?

[@0033mer]

It's cross connect wire used in telephone central offices. www.amazon.ca/Belden-22208260-2-Pair-Connect-1000ft/dp/B00GNBY7RW

[@beforth]

Used ethernet cables also work.

[@gregt58]

@@beforth Thanks. I thought I had heard that somewhere else, but I did not have spare or broken ones to try it out with at the time.

[@0Bariq0]

That was great video. 👍

[@0033mer]

Glad you enjoyed it

[@casaalta1]

At last a blog I can relate too, Nubee electrician

[@AuditorsUnited]

can you help me a bit.. there is a circuit for residual voltage you can use to charge somthing higher voltage... like taking residual voltage from the air to charge a car battery.. do you remember the name of the circuit

[@0033mer]

You are probably thinking about an energy harvesting voltage multiplier charge pump. You can generate a voltage but never enough power to charge a battery. kzbin.info/www/bejne/jqGvdH5ubdOJnbc

[@abpccpba]

Great Hacks : = ))

[@MrMarkatgrc]

Super!!!

[@N0AGI]

Brilliant

[@dru6809]

Hi 0033mer - saw your video because of a link on Hackaday. I have a hack question. What hack would you use to reset a pc via the RESET jumper pins from another PC? Is there a better way than a relay?

[@0033mer]

The reset pin usually has a pull up resistor pulling the reset high. To reset, you pull the reset pin low. You can do this with a NPN transistor with the collector connected to the reset pin. For isolation between the two PCs, use an opto-isolator like in the video. The first PC turns on the internal LED and the collector output will pull the reset pin low.

[@dru6809]

Thanks. I'm going to see if I can recycle an opto-isolator out of some surplus electronics. 👍

[@jardel_lucca]

Can you open bottles with LEDs too? Wouldn't doubt that LOL

[@simplelyf4072]

Hi 0033mer :) Not sure if you’ve mentioned in a video, but how do you estimate length of jumper wire to cut them so they are nice and neat on your breadboard?

[@0033mer]

There are no tricks involved, it's just a lot of practice. I have been doing it for many years together with laying out PCB's by hand that also helped a lot.

[@jost459]

tks, please more such kiss circuits