Maxim make a most funky, tiny little one-chip, any voltage in, five Volts out power supply. It’s tiny (10 mm by 4 mm) and does everything ever that a power supply could need to do. Nearly.
The usual NZ stockists don’t stock it. Ordering it from the US will be pricey. But hey, Maxim normally sell these things by the thousand, and give out samples of ones and twos for free, in case I need thousands later. So I send off my request for samples to the NZ distributor and … hear nothing back. For a while. Oh woe is me.
Meanwhile, I’ve found that one of the bigger US stockists now does NZ ordering. The kit still comes from the US, but shipping and min order is much less, I guess coz they can bundle up a whole day’s worth of orders and send it in one box to here. After a few weeks, I give in, wave the credit card at them and two nice, shiny MAX710 chips are ordered. You can see where this is going, yup.
The ones I’d paid for arrived at home yesturday. As did the free samples.
I know I’m being petulant to be ungrateful for free stuff. But hey, it’s my birthday on friday, whereupon I get to be utterly, astoundingly, tediously petulant, coz it’s my birthday, dammit. So I’m just getting in practise, ok?