One of the things I have collected and tinkered with over the years is old phones. WWII field telephones, 1930’s and 40’s art-deco dial phones, etc….and I still use a couple of vintage rotary dial phones in the house today. Recently I picked up an old phone from my childhood–this is an 1890’s vintage wall… Continue reading Printed Circuit Origins… or…Cutting Board Computing
Category: Electronics
Assault By Battery
Batteries. The ubiquitous little power sources in nearly everything we use. Today, the most common are by far the lead-acid batteries in cars, the lithium-ion cells found in tablets and cell phones, and the Alkaline batteries as are commonly used in everything from flashlights to portable radios. Each has their advantages and disadvantages….their “pluses and… Continue reading Assault By Battery