Resistor of 50W..
Resistor of 50W..
Dear,
I would like to know if you can make this special resistor for a filament bias.
I need to dissipate 55W.. That will be hot.. Maybe I can consider to make them oil filled.
Thank you in advance,
Best
Julien
I would like to know if you can make this special resistor for a filament bias.
I need to dissipate 55W.. That will be hot.. Maybe I can consider to make them oil filled.
Thank you in advance,
Best
Julien
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- Posts: 2092
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OK lets take the 12.68Ω 55W version.
That is 2A of current and in order to carry that without excessive heating which increases the DCR I would need to use something like #18 wire. #17 has 1.28Ω of resistance per pound so each resistor would need to be a 10 pound spool. Need I consider this in silver
Even the seemingly easy 28.3Ω 3W would need a pound of #25 wire each.
I guess the thing to learn here is these are not well suited for any sort of power dissipation and are best used in very low power / low signal applications like loading of a cartridge.
dave
That is 2A of current and in order to carry that without excessive heating which increases the DCR I would need to use something like #18 wire. #17 has 1.28Ω of resistance per pound so each resistor would need to be a 10 pound spool. Need I consider this in silver
Even the seemingly easy 28.3Ω 3W would need a pound of #25 wire each.
I guess the thing to learn here is these are not well suited for any sort of power dissipation and are best used in very low power / low signal applications like loading of a cartridge.
dave
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Impossible sounds like a challenge but I do not think any of the values you need are realistic.
dave
dave
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