Tube🌿Time1d ago
feast your ocular orbs on this cross section of a miniature Nuvistor vacuum tube.
Show threadTube🌿Time1d ago
RCA published a really nice cutaway drawing with annotations.
Show threadTube🌿Time1d ago
and here is the Nuvistor, flanked by a "miniature" vacuum tube on the left and a transistor from the same era on the right. RCA's Nuvistor was just a micro-miniaturized vacuum tube they felt could beat the transistor. (it did not.)
Show threadMike Prior-Jones
@tubetime I dimly recall someone selling very expensive nuvistor-based hifi amplifiers in the 90s, back when there was still cachet in valve amplifiers
Apr 5 at 3:37pmWeb
Show threadMike Prior-Jones1d ago

@tubetime found it: https://ebay.us/m/fGBNTd

Still very expensive!

Musical Fidelity Nu Vista 800 Integrated Amplifier | eBay UK

This is an amplifier that will drive virtually any loudspeaker you put in front of it with complete authority and finesse. Lovely sounding amplifier everything works but the casework has a lot of minor marks as seen by the images.

eBay UK