Electronics > Projects, Designs, and Technical Stuff
Mystery tin resistor box
gbaddeley:
Either do the spreadsheet, or provide a list of pins (combine 3&4 and combine 5&6, as they are shorted), and find the 2 other pins that have LOWEST resistance to the pin in question, and provide those 2 resistances.
Your rats nest measurements so far are not easily decoded.
alanb:
Why not feed in some low voltage AC between a couple of the terminals and measure the voltage on others to see if it is a transformer? Input between 1 and 5 and measure 7 - 12.
Labrat101:
My first question is where did you find it??
was it from an old Building?
I think you are going to find a load of hand wound chokes inside . wound on bobbins.
So be careful how much heat you apply as it will melt the wax coated coils .
Measure the Henry not resistance .. :-DMM
It is , Was a custom part. The tin should give you a clue .. Its a Medical box . syringe box from early 1930..
enut11:
--- Quote from: bdunham7 on May 27, 2020, 01:17:57 am ---Can you measure 11-13 and 7-10? And maybe 2-8 and 2-9?
--- End quote ---
11 to 13 is 0 ohms
7 to 10 is 0 ohms
2 to 8 is 1 ohm
2 to 9 is 1 ohm
gbaddeley:
Another guess is that it’s a resistive attenuator network, possibly balanced, possibly 75, 150, 600 Ohm or some other multiple.
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