Finished making an 8 port electronically variable RF attenuation circuit. It is made on Rogers-Duroid TMM 10 (ceramic circuit board material). Oh and by the way , no, you can not easily drill through this ceramic!!!
It is part of a much larger project, sadly not much to do with furry.
It is for a pseudo Doppler radio direction finder circuit. People call this Fox Hunting, aka find the hidden RF transmitter (the Fox), and you can be the hound (I am a working dog!). So maybe in some tiny way, this is slightly furry-ish? I was going to call it the Heidi Hound 1 (after my best dog pal Heidi).
It is smaller than the Beastars Manga Volumes
Close up of Surface Mount Soldering.. not my best, but not bad. Made in one day, soldering was done at 1am. No I can not see these parts when soldering, I do it by feel at times. I USED to be able to see everything.
This was all drawn, etched, drilled and soldered by hand, all my own design as well. It is almost a piece of art. And yes those swept bends are indeed constant 50Ohms impedance! (nerding out over here). About 250 individual components here! The PIN diodes cost over $100 for all 32 of them. Sometimes I think I am insane.
This is the control and readout part... don't laugh too hard please! All point to point wiring with through hole parts, a mixture of analog, digital, and weird esoteric parts I have collected since about 1997? Oh boy....memory lane. Those are Radio Shack perf boards 10 stacked with spacers. This thing needs to get into a metal enclosure later. Unfortunately, this circuit has developed a problem after this photo was taken.
And to finish it all off, a lot of RF cable and a huge 8 antenna array for the top of my vehicle!
I need a life