The triode vacuum tube might be nearly obsolete today, but it was a technology critical to making radio practical over 100 years ago. [Kathy] has put together a video that tells the story and explains ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Western Electric type 216A ...

The circuit was designed to create a power amplifier circuit that will utilize E80CC and EL34 vacuum tubes for better results while providing 35 Watts of power. E80CC – a special quality double triode ...

A direct-conversion radio receiver required an audiogain of 450 from a pentode vacuum tube. A pentodehas a high transconductance—that is, the ratio of thechange in plate current to the change of the ...

Add Yahoo as a preferred source to see more of our stories on Google. Écoute Audio’s TH1 headphones represent something of a departure for the audio market. The use of a genuine triode vacuum tube as ...

Vincent Audio has introduced a high-performance HDCD CD Player that offers the optimal union of precision CD processing with high-end vacuum tubes to bring the music to life. The Vincent CD-S8 plays ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. A 4-pin plastic base with tipped ...

Forbes contributors publish independent expert analyses and insights. Technology journalist specializing in audio, computing and Apple Macs. This voice experience is generated by AI. Learn more. This ...