Speaking of charm, we just love the amp these tubes went into ... We may have seen other homemade vacuum tubes before — we even recently featured a DIY X-ray tube — but there’s something ...

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 ...

Discover how solid-state tube replacements offer a reliable, eco-friendly alternative to traditional vacuum tubes without ...