What is this component??

Hi Guys,

A mate and myself were looking for some parts here at work and came across these weird looking things, they show as an open circuit when measured on a Ohm meter and also tried an LCR meter and nothing on either L C or Z...

Says on the side

DALE
M51
300KM
10%
722

Now we are curious


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Thanks

Chris

 

Looks a lot like a flux capacitor

 

Possibly an older style high value (300,000 MegOhms), high voltage resistor.
Vishay, which aquired Dale, has values up to 6 million MegOhms (Yes, you read it corrrectly) and rated up to 125 KV.
http://www.vishay.com/resistors-discrete/res1G/
Cheers

 

Fuse? Reed switch? Very large value resistor? I'm stumped

 

I would of said reed switch at first glance, but the inside does not look like one. Same for fuse so I am out of ideas. Maybe have a look at Dale's website?

 

Inside the glass, it looks like 2 resistors in series. The nearest I can find to these is the Vishay-Dale HVW / MVW series.
Would it be possible to give us an idea of its size?

 

Its Dale's M51 Galaxy 722calibre rifle round capable of travelling 300km/h with a 10% chance of exploding in your face.

 

I have two guesses:

Slow-blow fuse.
The wound section is a carbon fuse element on a celulose former. The metal spring obscurred by the black writting is a tension spring that pulls on the former. When it gets hot enough, the former burns and looses tensile strength and the spring pulls apart to stop arc over.

Geranium signal diode.





Have seen components like this before that fit both catagories. Spose i could just google the part numbers.

 

Google comes up with a few possibilities:

SHOTTKY diode
Zener diode
Surge arrestor
Tunnel diode


Take ya pick.

 

Wrong construction to be any kind of diode, and too elongated to be a surge arrestor.
Looks like one of:
2 resistors in series
1 resistor and 1 fuse in series
1 resistor and 1 inductor in series
(unlikely) 1 resistor and 1 capacitor in series.
There are hermetically glass enclosed resistors currently being manufactured by Vishay-Angstrom.