Resistor type and power rating

suspired · 6th March 2006, 05:40 PM

Hello,

Would someone please help me find the power rating for a resistor I am coping with while repairing my amplifiers. I am not sure what type it is either... carbon film maybe? The cylinder portion is 1.7 cm long.

This is my first post, it seems like a reasonable question but please let me know if it is not suitable for this forum.

Thank you

Here is a scan of the resistor in question:

anatech · 6th March 2006, 05:48 PM

Hi suspired,
That could be a one or two watt unit. How long is it?

I would use a metal oxide resistor to replace it in the same wattage rating, or slightly higher. At 18K I'm guessing it's a two watt.

-Chris

lndm · 7th March 2006, 03:30 AM

This looks like a recent (70's) carbon composition resistor. It is probably rated at 1/2 watt. These resistors are larger than a more modern resistor with the same dissipation.

Metal oxide resistors are often used in power supplies, but I dont like their sound. Carbon comps sound good.

arnoldc · 7th March 2006, 04:01 AM

That looks like my allen bradley, maybe 1 watt.

G · 7th March 2006, 05:20 AM

You can replace it with a 5 watt Kiwame carbon film and have no worries.

suspired · 7th March 2006, 02:52 PM

Many thanks Anatech, Indm, ArnoldC, and G for your help.
Your suggestions and advice not only helped me to look in the right places on the net but also led to finding answers for a couple of other questions.
Anyway, I was able to confirm, due to it's size, and by comparing it to a Kiwame I had, that it is an Allen-Bradley 18K 5% 2W.

Here are some other details...
My workshop.
( this web site is very new and extremely messy... be warned )
Thanks again,
suspired

6th March 2006, 05:40 PM	#1
suspired diyAudio Member Join Date: Mar 2006 Location: Edge of Shield, QC	Resistor type and power rating Hello, Would someone please help me find the power rating for a resistor I am coping with while repairing my amplifiers. I am not sure what type it is either... carbon film maybe? The cylinder portion is 1.7 cm long. This is my first post, it seems like a reasonable question but please let me know if it is not suitable for this forum. Thank you Here is a scan of the resistor in question:

7th March 2006, 05:20 AM	#5
G diyAudio Member Join Date: Apr 2002 Location: Belleville, IL.	You can replace it with a 5 watt Kiwame carbon film and have no worries. __________________ Gavin

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6th March 2006, 05:48 PM	#2
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Hi suspired, That could be a one or two watt unit. How long is it? I would use a metal oxide resistor to replace it in the same wattage rating, or slightly higher. At 18K I'm guessing it's a two watt. -Chris

7th March 2006, 03:30 AM	#3
lndm diyAudio Member Join Date: Mar 2006 Location: nsw	This looks like a recent (70's) carbon composition resistor. It is probably rated at 1/2 watt. These resistors are larger than a more modern resistor with the same dissipation. Metal oxide resistors are often used in power supplies, but I dont like their sound. Carbon comps sound good.

7th March 2006, 04:01 AM	#4
arnoldc diyAudio Member Join Date: Apr 2003 Location: Makati	That looks like my allen bradley, maybe 1 watt.

7th March 2006, 02:52 PM	#6
suspired diyAudio Member Join Date: Mar 2006 Location: Edge of Shield, QC	Many thanks Anatech, Indm, ArnoldC, and G for your help. Your suggestions and advice not only helped me to look in the right places on the net but also led to finding answers for a couple of other questions. Anyway, I was able to confirm, due to it's size, and by comparing it to a Kiwame I had, that it is an Allen-Bradley 18K 5% 2W. Here are some other details... My workshop. ( this web site is very new and extremely messy... be warned ) Thanks again, suspired