For
Tube-amp builders who want a real Studio: design any tube regulator from spec, simulate, diagnose and export.
You will learn
  • Compare every tube-only regulator topology on a shared bench
  • Master cold-cathode VR physics, stacking and ballast sizing
  • Design series + error-amp regulators with predictable Zout, ripple and stability
  • Diagnose live faults (oscillation, sag, hum, no-strike) with the interactive assistant
  • Export Markdown reports + SPICE netlists wired to Ampera's Koren tube models
Before you start
Power supply & rectification
Time & level
45 minAdvanced
Next step

By

← Studio

Course

Eight focused chapters, 33 minutes total reading time. Each chapter is short (≤ 600 words), connected to the shared bench, and ends with a quiz.

  1. 01
    Why regulate, and what to measure
    Five figures of merit + a decision tree for picking an architecture.
    4 min
  2. 02
    The shared bench baseline
    60 Hz / 325 Vrms / LC choke / 50 mA — the reference every calc uses.
    3 min
  3. 03
    One tube, five flavours
    CF triode (self / fixed / peak-detect) and pentode. What each buys.
    5 min
  4. 04
    Adding a VR reference
    The physics of the cold-cathode VR tube + the cardinal cap rule.
    5 min
  5. 05
    Closing the loop with an error amp
    Loop gain T, β, R1/R2 divider, AC bypass cap, ripple atten in dB.
    5 min
  6. 06
    Cascade and feed-forward
    Multi-stage error amps, feed-forward null tricks for sub-mV ripple.
    4 min
  7. 07
    The inverted picture — shunt regulators
    When constant total current beats variable pass-tube current.
    3 min
  8. 08
    Stability, compensation, real loads
    Phase margin, the C_load pole, R_iso, and how to read a step response.
    4 min
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