Ok, I’ve not had chance to put thoughts to electron yet, unfortunately real life got in the way.
Anyway, I picked up my zy-t08 this morning, first bug bear, I got stung with customs, £3.21 in vat, then £8 in handling charges……I’m currently considering picking up where Guy Fawkes left off in that respect.
I’d charged a pair of cells last night, incase the mystery package was the small sun so at 7.30 I was at the post office, cash and card in hand, ready to grab package and get on with work. Package open, cells in, yep it works, not as intense as I’d of liked, but hey, suns been up an hour, give it a chance.
Later on in the day, I had time to strip the tail cover off and take some readings.
First issue, two of the cap head screws are almost round, cheap crap stainless screws. Got them out, the switch board is held in with two counter sunk Philips screws, they don’t need to be counter sunk, the board isn’t and ones looking like it was knocked in at 45 degrees with a hammer……with a sinking feeling, I apply the leads to the switch :-
1.92a high
0.92a medium
0.44a low
The clamp meter confirms its under driven, hunted blf for viffers mod, then popped the board out for a look. At this point you can guess how pd I was to discover the board wedged with a piece of thick paper, without it, its a p* fit.
The light looks nice, it feels good in the hand and I’m impressed with the job it does with these limitations in mind, I’d just hoped for so much more. My thoughts at the moment are redrill and tap the tailcover screws m3 and fit some decent screws, and wire a 0 - 0.5ohm pot across the sense resistors, there’s plenty of space in the driver cavity to hot glue the pot in place, then I can dial in the current before finally soldering the board down.
I like it, it just could have been much better with a little care on final assembly.