All articles tagged with #vacuum tubes
From 19th‑century relays to early vacuum tubes and finally the transistor, this explainer shows how semiconductors turned current into a controllable, amplifying switch. That leap enabled compact, reliable electronics and the rise of modern computers and smartphones, culminating in devices with billions of transistors (like today’s powerful smartphones).
Hackaday Links for August 2, 2026 summarize progress on Katalyst Space's Swift gamma-ray observatory rescue, the $400 EGOR breakfast robot from Kickstarter, leaked details about Google's Pixel Tag, and a USS Cod submarine video showing a dedicated vacuum-tube storage under the radio room.
CDs are surging in popularity and premium portable CD players are returning, led by Cayin’s CP6. Priced at $699, the CP6 combines a high‑end design with vacuum-tube-based timbre modes (classic, modern, solid-state), a high‑res DAC, Class A headphone amplification, and both 3.5mm and 4.4mm outputs, plus Bluetooth with LDAC and CD ripping capability for a versatile audiophile experience.