The ARRL Field Day is next weekend, but you can give it a go one week early with the Fled Hell Club's Field Day Sprint today, going from 18:00 through 19:59 UTC.
Recently I dug up an old bakelite straight key to get back into practicing Morse. I purchased it a couple years ago at a ham swap, looking for the cheapest key I could find ($10). While messing with it I got curious about it's manufacturer so took a closer look to the tag on the inside. Turns out it was produced in East Germany in a cold war era Leipzig. O_o
First go on a process experiment for building HF #antenna coils on a lathe.
Unfortunately, this coil won't work, or my LC meter calibration is completely out in space. Moving forward, I need to machine some kind of expanding arbour to grab the substrate (PVC) internally, as it's tricky to chuck up a squishy piece of plastic squarely. I also don't have the right tail stop for a job like this, and perhaps, I need to tighten the thread pitch to improve the electrical properties #radio
In all the years I've been wrenching on these #SSL #recording #console modules, I can't ever recall a #TTL #logic chip failing on me. (#Neve modules, different story) This chip contains four, two input AND gates which drive a few transistors that serve as #CMOS level converters. From here, a 4051 #analog multiplexer in current mode routes signals from various places to a cross-coupled non inverting voltage amplifier that eventually feeds bar graph meters.
@ReverendDak How much Mountain Dew did it take to make this?
lsngl.us == Los Angeles