Help with Resistor Please

saabie22 · 2nd February 2005, 01:08 PM

Hi,

I'm trying to determine the manufacturer of this resistor. There are no markings on it. Measured characteristics:

Length = .221"/5,6 mm
Diameter = .069"/1,8 mm
Resistance = 42.2 R

I'm concerned with the thermal characteristics (R vs. T) because of the intended location of this device and would like to be able to get some data from the manf., if possible.

Thanks for any help!

Apex Jr · 2nd February 2005, 03:12 PM

Because of the 2 extening end pieces I would venture
a guess and say there made by IRC (International
Resistance Corp). Most of the resistors I've seen with
those end pieces have been made by them...
Steve @ Apex Jr.

Magura · 2nd February 2005, 03:34 PM

Either that, or they are Russian military resistors, I got a truckload of those and they look just like yours.

Magura

saabie22 · 2nd February 2005, 03:38 PM

Thanks so much for your help! Now my search has a starting point.

Mike

TwoSpoons · 2nd February 2005, 08:27 PM

Why not just measure it? How you can possibly guess a resistor manufacturer by looking at it is beyond me - whats more, how will you know for sure which model you have?

Simpler just to measure its Tc! (ice point , boiling point - thats 100C differential right there! - should get a reasonable Tc measurement from that)

AndrewT · 2nd February 2005, 09:39 PM

Nice lateral thinking TwoSpoons.
Why can't the rest of us see the obvious.
Life just seems to be too difficult I suppose.
regards Andrew T.

2nd February 2005, 03:34 PM	#3
Magura diyAudio Member Join Date: Oct 2003 Location: Denmark, Viborg	Either that, or they are Russian military resistors, I got a truckload of those and they look just like yours. Magura __________________ Everything is possible....to do the impossible just takes a little while longer. www.class-a-labs.com

2nd February 2005, 03:38 PM	#4
saabie22 diyAudio Member Join Date: May 2004 Location: south carolina	Thanks! Thanks so much for your help! Now my search has a starting point. Mike

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2nd February 2005, 03:12 PM	#2
Apex Jr diyAudio Member Join Date: Jun 2002 Location: Torrance, Calif	Because of the 2 extening end pieces I would venture a guess and say there made by IRC (International Resistance Corp). Most of the resistors I've seen with those end pieces have been made by them... Steve @ Apex Jr.

2nd February 2005, 08:27 PM	#5
TwoSpoons diyAudio Member Join Date: Oct 2004	Why not just measure it? How you can possibly guess a resistor manufacturer by looking at it is beyond me - whats more, how will you know for sure which model you have? Simpler just to measure its Tc! (ice point , boiling point - thats 100C differential right there! - should get a reasonable Tc measurement from that)

2nd February 2005, 09:39 PM	#6
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Nice lateral thinking TwoSpoons. Why can't the rest of us see the obvious. Life just seems to be too difficult I suppose. regards Andrew T.

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