[Paul R.]

Ah, something like emitter resistors on a transistor audio amplifier with multiple parallel transistors on the output?

Here, I figure (equalized + headroom) maybe 5A worst case(!) per diode, so, 5x5x0.2 = 5 watts — hmmm, that handybox be gettin’ pretty warm!

OTOH, the aluminum “curve” sign some driver took out beside my property has been laying in the ditch for over 4 months. I even dragged it out where the highway dept. would not miss it. They put up a new one and left the old one by the ditch. And have been working literally “right there” since. Pretty nice sheet of 1/8”(?) aluminum for a heat sink there...

[dagunk]

Pretty nice sheet of 1/8”(?) aluminum for a heat sink there...
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Oh Yeah - Grab that sucker, blast it clean. You got some dandy heat sink material there.

[dayglored]

> Ah, something like emitter resistors on a transistor audio amplifier with multiple parallel transistors on the output?

Precisely! Same idea.