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thefabricator03 wrote: Thanks Rod,
I have already brought a resistor as per Johns recommendation I brought a 220 ohm 5 Watt wire wound resistor,
I take it that since it is greater than 3 Watt it should be fine to use.
I really appreciate the help from everyone here, I should have my cabinet wired up this weekend and hopefully have the machine up and running next week.
Rod, I forgot to calculate the power dissipation across the resistor. Unless you have a 3 Watt resistor, it will burnout.
It would be better to use 1000 ohm, giving a cleaning current of 24mA (if the resistor is rated at 1 Watt)
or, if you want the contact current to be around 50mA, 2 x 1000ohm 1 Watt resistors in parallel.
It is important to use resistors that can dissipate the power dropped across them.
A 220 ohm 5 Watt resistor would be OK. (giving a current of around 100mA
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