Questions tagged [identification]
Identify chips, connectors, cables, and other components from markings, photographs, and descriptions of the surrounding circuitry or equipment.
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What is the name of these little plastic things that protect wires from being cut into by the sharp edges of a drilled hole?
What is the name of these little plastic things that protect wires from being cut into by the sharp edges of a drilled hole?
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How do I identify SMD components? (or how do I identify any component)
How do I identify the markings on an SMT component and match it up with a part number so I can be a good designer and actually look at a datasheet (and read the whole thing)?
Or identify a part to ...
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What is this object found on transmission lines?
What are the components, circled in red in the figure, on this transmission line ?
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What is this cartridge fuse style component?
This is a Sony EVO-9500A (old 8mm tape player/recorder).
What is the cartridge fuse style component? It is 1/4" by 1 1/8" about the same size as a 3AG fuse. It has a scale on the front going from 0 ...
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Taking apart old electronics
I sometimes end up having someone's unwanted old electronics, usually faulty ones. Does it make sense to harvest components from such. Anything valuable I should be looking for?
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Please help me identify this odd-looking component
When opening up a car alarm system I found this strange-looking component. I thought that it could be something which is light dependent, but the entire board is enclosed in a black plastic box and ...
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What is this unusual LCD controller technology?
Preface: Even if you do not have a definite answer, I would greatly like feedback from anyone who has even seen an LCD using this technology.
I recently took apart a Canon digital camera from the ...
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Help identify the IC manufacturer: is it really possible that these ICs from the 60's just made a comeback (К155ИД1)?
So we've been manufacturing Nixie Clock kits for the last few years, and for the multiplexers we used 74141 ICs, or their Soviet clones (К155ИД1). The latter were easier to find on ebay and were used ...
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Resistor Mounted On Top of IC?
Recently, I've been working to repair a broken 1980 "Arp Solus" synthesizer that I acquired from a friend.
I have, however, found myself confronted by an unfamiliar arrangement: some kind of resistor ...
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Identify this rechargeable battery pack
I want to identify a rechargeable battery pack from inside an old portable hard-drive.
It is unlabelled. (I ripped open the blue covering - it isn't labelled on the internal metal cover either.)
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What are those small metal bars going across a PCB for?
In quite a lot of PCBs that I have seen, they often have these small metal bars going across from one point to another.
Here is an image of what I am talking about. In this example it is a charger:
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Is there some logic in IC name prefixes?
There are hundreds of prefixes in IC names, this page lists a number of them. For some it's easy to see that they refer to the manufacturer's name, like AD for ...
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What is the purpose of this device?
I found this device in my father's basement, but I can't figure out what this device is.
It has only 1 SCART connector, 1 power cable and only 1 button in front of it.
I think it may be some old video ...
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What is this chip, who makes it and what's it used for?
I was cleaning out some junk when I encountered an interesting chip. It looks like a remnant from the Apollo space program with its all-metal body with the marking ADC581B 8533 6686. Next to the 8533, ...
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What is this flange with wire windings in a conical / horn shape?
I found this thing in a heap of stuff to be dismantled for recycling. There is a flanged chassis with winding wire rising up the wall, going along the rim, and diving back down, all this duplicated on ...
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What is the name of this connector from a fan?
I am EE hobbyist and I often used recycled parts in my projects. I came across this connector to a Heat Sink Fan and would like to know the name of it.
Thanks for the help.
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Trying to identify threaded round 2-way power connector on a radio
I'm trying to find a power connector for a Maxon DM200 Mobitex radio terminal. As far as I'm aware, the part of he manufacturer who made this radio closed down some years ago, and there's no support ...
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СССР Parts Identification
I would really like to know what these are before I start playing around with them, tried to translate everything and can't find a thing — then again they say made in the USSR (СССР) so maybe no one ...
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What is this glass bulb with two parallel electrodes on my PCB?
Might be super obvious, but I've not encountered one of whatever this little dude is before:
I figured some sort of vacuum tube, but no idea beyond that. The two poles aren't linked. Found inside a ...
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Help identify the discrete component in this battery pack
I am rebuilding a NiMH battery pack for a RF remote control device which can be recharged by plugging the device in.
The battery pack is connected with three wires:
black to the negative
red to the ...
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What is this symbol? (assumed compliance mark like CE / FCC)
So Raspberry Pi have a new model out (the Raspberry Pi Zero W). Having taken a look at the photos, I see that on the reverse, where the CE and FCC compliance marks are shown, there is another symbol. ...
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What's this vintage diode(?) from the 1970s?
This is the PCB from an Elmo Sound Monitor 912, marketed sometime back in the 1970/1980's.
The circled component seems to be a diode of some sort. Or, at least the diode mode on a multimeter measures ...
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What type of plug is this?
I'm seeking to buy this type of plug but can't find it anywhere. I tried asking at my local electronics shops, googled the images and consulted the data sheet of the appliance it came with. (12V input ...
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What is this silver component?
Anyone know what this silver component is? Tried to google it, but no luck.
Thanks
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Potentiometer like component
Okay you might get this a lot around here; I'm trying to figure out the inner workings of this specific potentiometer like component. I want to get my hands on the datasheet or a similar components ...
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What kind of socket is that?
I found that socket on a music device produced around mid 1970s in GDR and I was wondering what kind of socket it is. Unfortunately, someone painted the whole device, including the contacts. Therefore,...
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Does anybody have any idea what this piece of equipment is?
A friend of mine picked this up at a garage sale where an elderly electrical engineer was selling a bunch of old test equipment.
It's missing a faceplate where it should name what it is, and he's ...
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What does a "sad face with a bow tie" represent? [closed]
Some trains in the Madrid metro network have small metal boxes with this sign on them:
There are no other signs on the box and some signs only have the "bow tie".
I'm guessing it's two Zener diodes ...
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How to find socket for ThinkPad keyboard ribbon cable connector?
I am looking for a socket which is able to receive the connector of the ThinkPad X41's keyboard ribbon cable. How do I identify the socket so that I can find it on the (German) market?
Background: I ...
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What's this symbol (capacitor with wire through the middle)?
I've occasionally come across this symbol which appears to be a capacitor with a wire through the middle - but I've never seen it on anything where I could get a look at what component it corresponds ...
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Unusual old resistor symbols identification
Image from: here.
This image is the schematic of an old Tesla 521A valve amplifier radio.
On the following resistors in the schematic there are weird markings:
R4, R5, R6, R24, R25, R26
I am ...
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What's the usage of these holes?
I'm really curious to know what are these holes on this mobile PCB:
Are these vias? I doubt they are vias. If these are not vias then what are they? What's the usage of these holes?
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Does anybody know what this electronic component is?
I have an electronic component which has no letter or number on it. It has 2 legs and when you shake it there is something moving inside up and down. I am searching for it for hour still have no clue. ...
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What are those wire terminals that mate with standard header pins?
I have purchased "dupont" connectors on Ebay that crimp onto a wire. They look like this:
http://www.hansenhobbies.com/products/connectors/pt1inconnectors/pt1in_ft/
I'm tired of waiting weeks for ...
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Help Identifying Weird Component
Attached you find photos of a Li-Ion battery's PCB. I'd like to know what this component is called and what its use is.
The component in question is the three pin stretched silver "bridge". The white ...
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Unknown SMD Component
I'm trying to find the components of the PCB I have. I have a problem with a 5 pin (SOT23-5) component. Can someone help me with this?
There are version1, version2 and version3 of the PCB and marking ...
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How could I identify this thermistor
I've been scavenging for components on a deceased gadget and I've found a thermistor I'd like to use in the future. The problem is there's no serial code printed on it. Without knowing the ...
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How to recognize a Germanium Diode
I am in a little trouble and seeking some help. I got a bunch of mixed up diodes from an old collection. I know there are few diodes which are Germanium Diodes. But they look so similar to 1N4148 and ...
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What is this component? White SMD part marked "W"
I have looked at every capacitor or resistor but I don't know what this kind is called.
Does anyone know what this component is called? It's just a letter "W" in a blue square.
This board ...
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Can anyone identify this IC
It's the 6-pin SOIC in the middle with what looks like "67T" or "T76" on the top. I can't find any info on this I'm hoping someone here has come across this. The top left pin is possibly a digital I/...
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Are these transformers or giant capacitors?
I sometimes see these devices along power lines when I'm driving and was wondering what they were. They look just like the regular transformers that I see on top of electrical poles, but it seemed ...
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What is a good methodology to identify small SMD components?
Having been in the position of trying to identify a strip of mystery 0603 components I found on my floor, I thought a good general question to pose to this community might be what a recommended set of ...
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Old equipment to identify
I volunteer at the Dauphin Railway Museum in Manitoba, where we recently received a donation of equipment collected by CNCP Telecommunications in the 1970s and earlier.
Most has been identified, ...
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What kind of capacitor blew up in my old IBM monitor?
I pulled this out of an old IBM 5154 EGA monitor from the 80's. Clearly both are bad (though the monitor itself works anyway...). I know they're capacitors, but what kind? What would a replacement for ...
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Can you help me identify this manufacturer's logo on this component
Stylized S logo that I cannot find any information on. The model of this stud mount diode is 240E10RTC. It measures 45 mm in width has 20 mm threaded end
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Can a small glass cylinder with "6.00" marking be a fuse?
My guess is that this part soldered to an SMD board is about 20 years old (it's from the controller of a Mecablitz 50MZ-5 wand flash). The controller currently is not working but that may be due to ...
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Are these pin connectors a standard part? If so, what are they called?
This is a "wet" temperature sensor for a Boilermate 2000 thermal store. The pin connectors are inserted into a plastic plug that connects to the control board (see 2nd image).
The pins do not stick ...
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Help me identify this resistor
I am trying to troubleshoot a faulty camcorder PCB and stumbled upon this resistor(?) that is right near the DC jack.
The resistance between it is 0 Ohms.
What is this component? I couldn't find ...
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