The 2DM860H chinese controllers vs the rest?

[Kitwn]

Neale,
When I was a lad power transistors (at least the radio frequency ones) were described to me as "the fastest fuse on three legs". In practice these things often fail as a short circuit which is what takes out the fuse to protect everything else as you say. Doddy's got an evening amusing himself with his soldering iron out of it so all's well that ends well.

Putt's Law states that technology is dominated by two types of people. Those who understand what they do not manage and those who manage what they do not understand.

[Doddy]

Neale,
Doddy's got an evening amusing himself with his soldering iron out of it so all's well that ends well.

Putt's Law states that technology is dominated by two types of people. Those who understand what they do not manage and those who manage what they do not understand.

I seem to have many things amusing myself at the moment. Ho-hum. I like Putt's Law, I need a coffee mug with that on it.

[Neale]

When I was a lad power transistors (at least the radio frequency ones) were described to me as "the fastest fuse on three legs". In practice these things often fail as a short circuit which is what takes out the fuse to protect everything else as you say.

My degree, best part of 50 years ago now, was in electronic engineering - this at a time when a quality "transistor radio" was still populated with germanium transistors. I remember the same quote! My son once borrowed my variable-voltage bench power supply to charge a car battery. Not a good idea. At least 2N3055s are big enough to get a decent size soldering iron on! 6 of them, as I recall...