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Yes, I wish there were a much easier, less messy process for making pcbs. What we really need is a "printer" that lays down copper on some sturdy stock. Or a computer driven milling machine that can cut away copper quickly. These chemical methods can make beautiful boards, but the hassle is high, especially disposal of toxic waste.
I agree about the diodes in theory. But what about thermal runaway? If one diode gets hotter, does its "forward turn-on" voltage get lower enough so the other diode starts to cut-off, resulting in more current to the warmer one, which accelerates the effect, etc?As for rechargeable batteries... I like them but find them inconvenient unless you have a very smart charger that will keep them conditioned just right and ready to go. Keeping chargers constantly plugged in is one of those mini-drains that add up when you look at all the chargers in your house. I unplug them all now, but that is a big inconvenience also to plug and unplug all the time. I'm a believer in rechargeables, but haven't found a smooth solution yet.
I'd like to see a fountain pen where the syringe was used to suck up the ink.
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