Mystery device
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You are currently reading a thread in /g/ - Technology
You are currently reading a thread in /g/ - Technology
Does anyone here know what this device is? What does it do? How old is it?
>>54942295
bump
It looks like a weird transformer or tunable electromagnetic vibrator. I guess 100yrs old
Some kind of transmitter for morse code with the capability of using different frequencies.
>>54942295
DON'T TOUCH IT
IT'S A BOMB
i'm going to guess it's some sort of gauge for electricity. the more that goes through the coil, the rod is pulled further in.
>>54942358
I'd go with this.
The big thing looks a little bit like an adjustable capacitor.
>>54942295
Where did this come from?
>>54942363
>>54942295
It's a tuneable fuse from 1850.
OP here
I found it in the attic. I have actually seen one of these things on an auction once, but forgot the name. I knew I had one as well but thought it was lost.
The rod is a hollow metal pipe, it seems to go around some sort of metal foil in the center on the inside.
Looks like an old pressure gauge to me.
>>54942295
Looks like a variable coil / inductor.
>>54942404
So, an induction coil... Would it be worth anything?
>>54942295
Mustard gas
>>54942423
To the right person maybe but not much. Depends on who is buying and if there might be anything else special about it. Maybe $50.
>>54942295
I THINK it's a tuner off an old radio. When I built a crystal radio in the Boy Scouts the tuner looked something like that.
I could be entirely wrong, though.
>>54942295
variable resistor/potentiometer?
>>54942295
it's a field-programmable gate array
>>54942295
I'm not for sure, but it looks like it could be some sort of pressure gauge.
>>54942455
na, variable/tuning capacitors look distinctively different, using plates instead of a coil
>>54942530
-- also, the device in OP appears to vary by sliding a component in and out, variable capacitors are adjusted by turning a component
>>54942530
This.
You get a variable capacitor by varying space, distance or interstitial media between the plates.
You get a variable inductor by a moving tap (this also for varying resistors) or moving ferrite core.
it's clearly a botnet
http://auction.catawiki.com/kavels/493731-ruhmkorff-klos-eind-19de-begin-20ste-eeuw
"Particular demonstration unit; ' Daniel Ruhmkorff's '
This device was used in schools to the principle of the ' Ruhmkorff coil '. In original box.
After connecting a low-voltage battery a high electrical voltage on the two tubes. The tension could be arranged by shifting the coil core. Students who have maintained the tubes during the demonstration, by the bright electric shock, the functioning of the Ruhmkorff coil never forget. "
>>54942585
>>54942585
>Students who have maintained the tubes during the demonstration, by the bright electric shock, the functioning of the Ruhmkorff coil never forget.
ok
>>54942585
still not really sure what it does
translation poor of tension will never be forget
>>54942627
>>54942614
Here's a video
https://www.youtube.com/watch?v=3bVVEvYEC-I
>>54942295
I think its a thermometer. What temperature does it read?
>>54942633
why is electricity so noisy
first time I built a tesla coil the spark gap almost ruptured by ears
wasn't warned about that in the tutorials desu
>>54942673
Air expands when it gets hot.
>>54942742
gas stoves don't make that kind of noise
neither acetylene, welders...
Looks like a home made radio.
>>54942525
My uncle says pressure gauge too. My dad says some sort of fuse, or maybe some sort of hydraulic gauge. He didn't sound like he believed the last part though. He's worked as an electrician, machinist, and retired from Lockheed doing hydraulic testing. My uncle and I are machinists. None of us are very sure though.
>>54942784
Are you seriously comparing that with a spark or you are just mad that I didn't explain further?
>>54942827
TIG/MIG-MAG welding produces sparks
their might be shorter tho but still
OP here, I applied 4V DC to the connections marked B. The contact starts oscillating, but no spark between connections P and S
>>54942844
Again, I don't understand if you are comparing those things because you really don't understand what's going on or you are mad.
>>54942862
Isn't it a LVDT?
>>54942784
Gas doesn't heat up the air nearly as much, also it replaces most of the air. Electricity instantly turns air into plasma.
>>54942862
>later in the news: poor anon shocks himself to death by accidentaly touching the HV end of the generator
>>54942360
ALLAHU AKBAR
ALLAHU AKBAR
ALLAHU AKBAR
>>54943703
Dont worry, im a professional
You are required to wear a tophat and a waxed moustache to operate that device.
>/g/ is now a pawn shop
>>54943855
>/g/ is now a pawn shop
Always was. At least it's better than /diy/'s communal diving dumpster.
