Questions tagged [sourcing]
The sourcing tag has no usage guidance.
43
questions
6
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what kind of tape is used in electronic devices
I repair quite a few devices and one thing that bothers me is that when I remove some of the tape pieces they never go back down right. I was looking for some replacement tape and didn't know what to ...
2
votes
1
answer
113
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What is this SMD common mode choke?
A pair of components was accidentally destroyed on my Korg Volca Modular synth:
Through the magic of getting another identical synth, I was able to see how it is supposed to be on a working unit:
...
- 5,947
2
votes
1
answer
239
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Sourcing Transformer with Specific Turns Ratio
I am looking at a building an electronics project that calls for a transformer with a specific turns ratio '1:4:50', and am trying to source a component. I am working on the project from this tutorial:...
7
votes
4
answers
2k
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Who is the main manufacturer of jelly bean parts?
Why do some parts like opamps and mosfets of different companies have same part number but they just change the initial letters. Does it mean that these are actually manufactured by just one company ...
2
votes
2
answers
516
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How to find a Pin-to-Pin Replacement for TL-081, but with higher VCC? [closed]
After ordering and assembling one of those¹ "red" 0-30V/0-3A power supplies from eBay/AliExpress and taking a bit of a closer look at it, I'd like to replace the TL081CP op-amps. It's ...
- 141
0
votes
3
answers
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"Source", "sink" or both?
Having solved the mystery of "pulling" and "pushing" devices, it would be interesting to do the same with "sourcing" and "sinking" devices.
Background
A ...
- 17.5k
2
votes
1
answer
390
views
Will this optocoupler circuit work for sensor and DC motor?
I am working on a project in which I need to operate a DC motor and some ultrasonic sensors.
I want to operate the motor using motor driver DRV 8871 by giving logic signals and read sensor value on ...
CommunityBot
- 1
39
votes
9
answers
4k
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Parts shortage, no stock, what now? (canonical reference question)
As a small business, student, or hobbyist, sometimes the parts I need are unavailable (no stock anywhere). Maybe authorized distributor will take order but they will not ship for 10, 20, 30 weeks, ...
- 22.5k
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1
answer
43
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Least amount of parts to switch a resistive load [closed]
Excuse me for not being able to provide a schematic right now as I’m on mobile but my question is fairly straightforward.
I’m trying to drive a bunch of resistive loads fairly quickly in a constrained ...
- 8,096
2
votes
1
answer
631
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Sound card CD audio in connector
The typical name I see given is MPC, MPC2, or MPC-2, and the cables are readily available, but I can't seem to source the female PCB-side connector. Obviously, a 1x4 pin header would work just fine, ...
- 1,245
0
votes
1
answer
69
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Can't secure supply of 32mhz Automotive grade oscillator - why is this?
This is my first automotive PCB. I designed in a high temp crystal from Digikey. Stock then went to 0 with big lead times, and then my alternate went EOL. I then spun the board with a TCXO. All three ...
- 12.4k
1
vote
2
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Load Cell ADC HX711 Alternatives?
Looking for an HX711 ADC alternative. Sparkfun sells a pricey breakout board with the chip, but I cannot source the IC anywhere online for some reason 🤷��️. Are there any ADCs out there that have a ...
- 2,916
4
votes
1
answer
5k
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Where to get a USB type E front panel motherboard header?
I'm designing a product that will need to have USB type C ports on its front panel, and due to physical constraints with the design, I would like to use a USB type E connector in conjunction with a ...
- 372
21
votes
6
answers
13k
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current sourcing, current sinking
I'm a student studying electronics and I'm having trouble understanding the concept behind current sourcing and current sinking. We've covered it in a lab using a 7404 and an LED and all that. Just ...
- 17.9k
12
votes
8
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Sinking and sourcing current
I have been reading that NPN transistors are sinking and PNP are sourcing devices. I do not really understand this concept. It says current source device connects load to Vcc and current sinking ...
