When I switch to internal regulator alt few months ago, I bought 75 ohm 3 watt resistor from a local electronic shop; 50 cents each, Still working well. I just coverd the resistor in some kind of sheild to protect it from heat and possible trauma. I bought 3 of those. if you like I can look for them. I don't promiss to find them though since my place is a mess right now.
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