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Eating humble pie. The original diagram was correct. I had to draw up the truth tables to convince myself! Clearly very rusty now with Boolean logic. I used to be a dab hand.

🫐 🥞, ☕

🫐 🥞

Finally able to venture outside to repair some minor storm damage. Rain and cooler weather brought a nice change. During fires After the rain

It was yesterday, but niece Dorothy and I walked the dogs in the newly renovated redwood grove nearby. Nate actually walked through this park before the additions of new paths and boardwalks and such. Anyway, there was a storm recently when a fair number of trees came down. This one is not particularly large but it was big enough. Remarkably shallow the roots for such a sizeable thing. These are not the greatest pics, but I'm wondering if anyone has the ability to count the rings...

12 volt filament version with pin 6 grounded. for existing boards modification is easy. solder short wire from pin 6 to the ground pin on the .1uf 630v cap nearest to that tube. megatron12vcs - CADCAM.ZIP