I'm Lee Hart, a retired EE, and avid electric car and vintage electronics hobbyist. I have my own website www.sunrise-ev.com if you want to learn more about me.
A great introduction to using the 4000 and 74C series CMOS logic chips
This is a great practical guide to using the 4000-series and 74C-series CMOS parts. Light, easy reading for beginners; but also quite a few clever tricks and techniques for experienced users.
Wade Ceramics Gay Pride Flag Gluggle Jug Mini 3.5" - Rare and Collectible
Jan 03, 2022
Gluggle jug
Works as described, but the 3.5" one is too small -- the "glug-glug" sound is faint.