• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

do I need to use a heatsink on a DN2540 in a B+ supply?

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Hi Jarthel

What will the dissipation be? You can have a rough estimation by multiplying the voltage across the DN2540 with the current through it. If it is more than some 0.5W I would put a heatsink? TAKE CARE with proper electical isolation between the body of the DN and the heatsink if the body of the DN is not isolated itself.

Erik
 
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