My #Radiascan701A #GeigerCounter died a while back. It acts normally, except it is insensitive to known-spicy objects. I finally got around to breaking the warranty sticker to peek inside. I measure around 230VDC across the GM tube, and it emitted a click when I touched the DMM leads to the contacts. Maybe the electronics are still working, but the tube lost vacuum?

Current mood

New tool day! First power-up of my newly acquired Chroma 61603 AC power supply. 0-300 VRMS, 1500 VA, 15-1000 Hz + DC. Wasn't cheap, but much cheaper than new. Took me over a week to unpack it, get it inside the house, make a space for it, and apply power. Didn't help that my right arm is a wreck right now with inflamed nerves and whatnot. This power supply is a heavy boy.

Just got this vintage casino loyalty card from eBay (I previously posted the eBay listing photos). I haven’t seen a card like this before. My dad speculated that maybe the punched holes are just decoration to look all high tech (in the 1970s, that is). He might be right? I don’t see an obvious correlation between the holes and printed numbers. Any ideas, my nerdy friends?

The top two videos in my YouTube subscriptions feed both focus on renewable energy.