It's cold, wet, and windy outside, quite naturally notions of Scotland come to one's mind. So it is only fitting that one of Laphoigs newer creations (An Cuan Mor) followed me home and could not be chased away.
Maybe the weather will be more agreeable then. Besides, I got the essence of vinegar for the de-gunking of the MiniTracer.
In other terms, an armful of small stuff came in today. A gaggle of positioners for M22520/2-01 crimp pliers, MNEM's Tektronix alignment tools and a parcel of electronic parts, whose order was partially triggered by looking for transistors for Wolfgang. Seeing the missing Hfe-steps in the BC-10x lineup, I had to refill a bit there, with some complementary types also having been absent. Some beefy 1N5408 diodes too for repairing a demagnetizing jig. And a surprise from Ero-Shan with some AS5010's and an AD542H.
err..thanks!
At work, I have designed myself into a corner. When the vile Garmin company changed the level of their PPS-pulse output on a GPS-receiver we are using from 5V to 3.3V logic, it was clear that we can neither tolerate that nor hold Garmin responsible, because we routinely violate the recommended cable length.
When their newer receiver, which is multi-GNSS capable, showed up with a RS-422 instead of a RS-232 interface, it became clear that there will have to be an adaptor. Have you ever heard the horrible words '
REQUIREMENTS EXPLOSION'?
It ended up being rather heavily garnished with GDTs, Transzorb diodes, ferrites etc. due to it's exposed position and the fact that the old GPS-rx was coming in fried too often. Being a responsible employee, I tried to show some cost consciousness, at least, where my design is not tainted by that. So I wanted to reuse the housing of an existing preamplifier. The bottom part is gone already, as the connectors required more height. Well, the lid and the EMC-gasket remain. I have had a layout and mechanical drawings done and now I am struggling to fit the interconnecting wires into it in a way that will spare me from a horrible death on the hands of the assembly crew. (My request for slave children was turned down on some obscure reasons by HR too). Did I mention that TIME is a factor? So no redo.
If no miracle happens, this means I'm stuck with custom modified Mil-C-26482 connectors in order to keep the behind-flange-part from interfering with the PCB. Well, easy come, easy go.
And I am looking at many Tek scopes now (see floppy problem). Will I be willing to trade off channels or bandwith? Do I want to have something as massive as a TDS7054 at home? Will I cripple my capabilities in an unexcusable way by going for anything except a TDS3054C? And the selection process (or even the mere pre-selection gathering of information) is fraught with danger! Even wearing blinkers I would not be able not to look at other TE too!