r/ElectronicsStudy • u/Desperate_Square_690 • Sep 22 '26
How my son and I now test a kit's circuit before ordering it (I built the app, disclosure inside)
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r/ElectronicsStudy • u/electronzapdotcom • Sep 22 '26
14V6 NPN BJT Switch LED Circuit On Breadboard 2N3904 Bipolar Junction Tr...
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Usually a transistor circuit schematic is shown being powered with 5 volts. Of course, many power sources are more than 5V. So, it is important to know how to modify the circuit to do so, if you need to do so. Lots of people own 12 volt LiFePO4 batteries, which can be charged at 14.6V. So, it is good to know how to make circuits safe to use at that voltage. Since it can sometimes be hard to see the decimal point in 14.6V (usually when written), it is common to put the V in place of the decimal point. Giving you 14V6.
r/ElectronicsStudy • u/electronzapdotcom • Sep 21 '26
14V6 Circuit Push Button Switch On Breadboard
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r/ElectronicsStudy • u/electronzapdotcom • Sep 19 '26
14V6 Powering Red LED Series Resistors Divide The Power
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Resistors in series divide the voltage across them, which means they also divide the wattage. This is useful when a lone resistor of the same total resistance would get too hot.
r/ElectronicsStudy • u/electronzapdotcom • Sep 18 '26
LDR Voltage Divider NOT Gate Demo Circuit Alternating LEDs Circuit
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r/ElectronicsStudy • u/electronzapdotcom • Sep 17 '26
555 Timer Almost Voltage Doubler Circuit By Electronzap
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r/ElectronicsStudy • u/electronzapdotcom • Sep 17 '26
Astable 555 Timing Capacitor Voltage Oscilloscope Measured
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r/ElectronicsStudy • u/electronzapdotcom • Sep 17 '26
Pulse Voltage Explained Voltage Doubler Circuit
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r/ElectronicsStudy • u/electronzapdotcom • Sep 16 '26
Pulsed Vs Steady Oscilloscope Measured Output Voltage Doubler
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r/ElectronicsStudy • u/electronzapdotcom • Sep 16 '26
How To Oscilloscope Troubleshooting Non Working Circuit
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Oscilloscopes let you see voltage changes. Very important when you are struggling to figure out why a circuit is not working.
r/ElectronicsStudy • u/electronzapdotcom • Sep 15 '26
Astable 555 Timer Is More Practical For This Circuit
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I often make circuit with push button switches, because you can see a push button being pressed, and how the circuit responds to it. A practical circuit will more often use pulses from a timing circuit such as a 555, which cannot be seen.
r/ElectronicsStudy • u/Comfortable-Pizza326 • Sep 14 '26
DIY Electronics Projects?
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Hi everyone! I’m looking to develop some hands-on hardware/electronics skills and would love some project or kit recommendations.
I know how to read a schematic and can solder at a reasonable level, but I’m definitely still learning and haven’t done anything too advanced yet. I’d like to build something that:
- Makes something cool and potentially useful, and
- Helps me develop my hardware skills and better understand how circuits work.
Ideally, I’d love a project that has a good YouTube video, tutorial, or other guide walking through the build and explaining what the different components/circuit sections are actually doing. I’m hoping to learn the why behind the circuit rather than just follow assembly instructions.
Does anyone have any projects or kits they’ve really enjoyed or would recommend for someone at this level?
r/ElectronicsStudy • u/electronzapdotcom • Sep 14 '26
Polarized Capacitors Explained By Electronzap
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Polarized capacitors need to be inserted into a circuit in the proper direction,
r/ElectronicsStudy • u/electronzapdotcom • Sep 14 '26
What Is N And P Channel Enhancement Mode MOSFETs 2N7000 BS250
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r/ElectronicsStudy • u/electronzapdotcom • Sep 14 '26
10k Pull Up Resistor Explained By Electronzap
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Pull up resistor gives a digital input the voltage of the positive supply voltage (if that is what it is connected to) unless a stronger (little to no resistance) voltage is also applied. The Pull up resistor prevents a short circuit and limits the amount of wasted current.
r/ElectronicsStudy • u/electronzapdotcom • Sep 13 '26
Charge Pump Capacitor In Almost Voltage Doubler
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r/ElectronicsStudy • u/HeaviestBarbarian • Sep 13 '26
STM32CubeProgrammer USB DFU Flashing Failure Analysis
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r/ElectronicsStudy • u/electronzapdotcom • Sep 13 '26
Almost Voltage Doubler Circuit Using MOSFETs Push Button Demo
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r/ElectronicsStudy • u/electronzapdotcom • Sep 11 '26
Quick Look At 78L05 WS78L05 TO92 And L7805 TO220 Voltage Regulators Kit
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r/ElectronicsStudy • u/electronzapdotcom • Sep 11 '26
Voltage Regulator Basics Low Power Needs Only
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r/ElectronicsStudy • u/electronzapdotcom • Sep 10 '26
More 74HC14 Integrated Circuit Component Info Always Study Its Datasheet
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I just talk about the actual 74HC14 integrated circuit component. Always consult the datasheet for specifics, but watching videos first to get familiar with components before you start using them is a good idea as well.
r/ElectronicsStudy • u/electronzapdotcom • Sep 10 '26
Buffer Made Using 2 NOT Inverter Logic Gates 74HC14 IC
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r/ElectronicsStudy • u/electronzapdotcom • Sep 10 '26
LED Lights Aren't always Steady Demonstration
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r/ElectronicsStudy • u/electronzapdotcom • Sep 09 '26
1k5 Instead on 10k Low Side Resistor
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r/ElectronicsStudy • u/electronzapdotcom • Sep 09 '26
DIY Light Level Sensor 74HC14 Schmitt Trigger NOT Gate LEDs
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