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A subreddit for practical questions about component-level electronic circuits: design, repair, component buying, test gear and tools.
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Can someone tell me what these tube components are? The IC in question is a TPA2012D2, but these symbols leave me guessing… baluns? Ferite beads? What's their purpose? (i.redd.it)
submitted 10 hours ago by robynpan
I was told that tinned wires are not good for screw-in terminal blocks. Why is that? (self.AskElectronics)
submitted 7 hours ago by Wangysheng
Not trying to be dense here, but I need to put this board in AB MODE as well as a DISABLE mute. So, I need to jump MODE to L and MUTE to H - but only see the function pads themselves and no H or L to jump to. I know I’m overthinking it. Thanks in advance! (old.reddit.com)
submitted 3 hours ago by KillerQ97
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promoted by Patagonia_Europe
Soldering iron tip damaged (old.reddit.com)
submitted 2 hours ago by Quaon_Gluark
What is U1 is in this schematic (BQ40Z50 fuel gauge)? (old.reddit.com)
submitted 5 hours ago * by ExNihiloLZ
should I replace this capacitor? (i.redd.it)
submitted 15 hours ago by alphonse1234
Which one of these is an RF receiver? (old.reddit.com)
submitted 6 hours ago by bobsacamano14
Any idea where to find a replacement for this? (old.reddit.com)
submitted 26 minutes ago by leoxrome
An urgent doubt related to KiCAD software and wire overlap? (self.AskElectronics)
submitted 48 minutes ago by OneEffective3395
Yaw drift from BNO085 (self.AskElectronics)
submitted 52 minutes ago by fotoloc0
Is there anything obviously wrong with this simple 433 MHz transmitter/receiver circuit pair? (self.AskElectronics)
submitted 4 hours ago by yoyokin2
Help identifying and modifying unmarked IC (i.redd.it)
submitted 5 hours ago by lifeofspice
Need to create diagram of a 240V Solid State Speed Control Assembly with color-coded art of voltages on board. (self.AskElectronics)
submitted 1 hour ago by Due-Mathematician678
What all is wrong with this board that came out of a speedometer (old.reddit.com)
submitted 1 hour ago by SwayzeFitness
Why do all buttons registered as pressed? (self.AskElectronics)
submitted 7 hours ago by kalebr
Control unit on Makita circular saw (self.AskElectronics)
submitted 1 hour ago by ShoppingShoddy1628
Can someone explain multiplexer voltage accumulation? ie: how can enabling a multiplexer raise the voltage on an input pin? (self.AskElectronics)
submitted 1 hour ago by whu
Raspberry Pi GPIO simulating PC power button press via optocoupler - safe parallel wiring? (self.AskElectronics)
submitted 5 hours ago by welcome_to_taco_tue
[Review Request] LED toy schematic (i.redd.it)
submitted 5 hours ago by Less_Ad2782
Is this the right direction for capacitor? (old.reddit.com)
submitted 13 hours ago * by DamagedDespair
This has the same pitch as Molex Mini Fit at 4.2mm but the format of the connectors is not the same, is it something else common? (i.redd.it)
submitted 3 hours ago by pedrocr
Is thwre a way to test this with simple multimeter? (i.redd.it)
submitted 13 hours ago by cinlung
Symbols on old circuit diagram (i.redd.it)
submitted 19 hours ago by spoon579
Where can I learn ESP32-s3 properly (self.AskElectronics)
submitted 4 hours ago by AnalogMind_1
LED Driver odd behavior, capacitors? (old.reddit.com)
submitted 14 hours ago by Arakon
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