For the electronics enthusiast a tube audio amplifier makes for an interesting and unusual project, and for that reason it’s one tackled by many. [Keri Szafir] is no exception, and she’s ...

With the wealth of cheap and highly integrated audio amplifier modules on the market ... Especially when those parts include vacuum tubes, and doubly so when you make the vacuum tubes from scratch ...

After a brief review of the history of the K2-W vacuum-tube op amp, an LTspice model is used to create its schematic in preparation for SPICE simulation. The availability of hierarchical blocks ...

Vox first introduced its Nutube technology in a series of micro amps back in 2017, followed by their first series of ...