Resistor wattage anyone?

serengetiplains · 3rd October 2011, 11:06 PM

I have a resistor I've pulled from an amplifier. It's a flat blue colour, looks like a carbon film, is 10mm long from end cap to end cap and is ~3.5 to 4mm wide on the body between end caps.

Has anyone a guess what wattage rating this resistor would have? I'm ok if it's 1W or less. TIA.

Minion · 3rd October 2011, 11:37 PM

1cm long seems pretty small , I have some of those old tubular resistors with the endcaps that are 3 + inches long , I would say that it is probably 1w or less , maybe 1/2 watt ..... these resistors seem to drift in value quite a bit when they get hot ......

Cheers

serengetiplains · 3rd October 2011, 11:53 PM

Thanks, Minion. It's a resistor that connects the plate of an EL34 to G2, the middle grid. I've put a 0.75W resistor in its place.

3rd October 2011, 11:06 PM	#1
serengetiplains diyAudio Member Join Date: Feb 2004 Location: Canada	Resistor wattage anyone? I have a resistor I've pulled from an amplifier. It's a flat blue colour, looks like a carbon film, is 10mm long from end cap to end cap and is ~3.5 to 4mm wide on the body between end caps. Has anyone a guess what wattage rating this resistor would have? I'm ok if it's 1W or less. TIA.

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3rd October 2011, 11:37 PM	#2
Minion diyAudio Member Join Date: May 2006	1cm long seems pretty small , I have some of those old tubular resistors with the endcaps that are 3 + inches long , I would say that it is probably 1w or less , maybe 1/2 watt ..... these resistors seem to drift in value quite a bit when they get hot ...... Cheers

3rd October 2011, 11:53 PM	#3
serengetiplains diyAudio Member Join Date: Feb 2004 Location: Canada	Thanks, Minion. It's a resistor that connects the plate of an EL34 to G2, the middle grid. I've put a 0.75W resistor in its place.