Vacuum Tube Design Software -

: A professional-grade tool frequently used for high-accuracy time and frequency domain analysis. It is particularly effective for simulating harmonic and IM distortion in tube amplifiers.

: Specifically designed for Single-Ended (SE) amplifier design, focusing on power output and distortion characteristics. Vacuum Tube Design Software

While dedicated, standalone software for vacuum tube design is rare, modern engineers and hobbyists primarily use with custom component libraries or niche legacy tools to design and test tube-based circuits. 1. General-Purpose Circuit Simulators (Industry Standard) While dedicated, standalone software for vacuum tube design

: Widely considered the gold standard for tube hobbyists. It is free and has a massive community-driven ecosystem of tube models (triodes, pentodes, etc.). It is free and has a massive community-driven

: A specialized, widely recommended tool for designing tube power supplies. It is much faster and simpler to use for this specific task than full SPICE simulators. 3. Advanced & High-Power Simulations

These tools are specifically built for the unique math involved in vacuum tube physics, such as load line calculations and grid behavior.

: A legacy program from GlassWare Audio Design that calculates gain, phase, output impedance, and heat dissipation for dozens of tube circuit types.