ThermionicTome

ThermionicTome is a practical tube amplifier toolkit designed for guitar players, audio enthusiasts, amp owners, and technicians who need quick access to useful tube amp reference tools.

The app helps you browse tube information, estimate bias current, explore tone stack EQ behavior, and keep a simple service history for your amplifiers.

Main Features:

• Vacuum Tube Reference
Browse a searchable reference database of common vacuum tubes, including preamp tubes, power tubes, and rectifier types. View useful details such as tube category, base type, filament voltage, gain factor, and commonly referenced substitutes.

• Bias Calculator
Estimate Class AB bias current by entering plate voltage and selecting a target dissipation level. ThermionicTome supports commonly used tube types such as EL34, 6L6GC, KT88, EL84, 6V6GT, and related tube families.

• Tone Stack EQ Viewer
Explore interactive EQ curves for classic amp-style tone stacks. Adjust bass, middle, and treble controls to see how the response changes visually.

• Service Log
Create local records for tube swaps, bias settings, maintenance notes, and amplifier service work. Entries are organized by date and stored on your device for quick future reference.

• No Account Required
ThermionicTome is built as a simple utility. You can use the main tools without registration or an online account.

Who This App Is For:
ThermionicTome is useful for:
• Guitar players who maintain tube amplifiers
• Audio technicians and repair benches
• Tube amp hobbyists
• Studio and rehearsal space owners
• Anyone who wants an organized tube amp reference tool

Tube amplifiers can contain dangerous high voltage even when powered off. ThermionicTome is an informational reference and calculation tool only. It does not replace official amplifier documentation, manufacturer specifications, or professional service advice. Always verify values before performing any amplifier work, and only service tube amplifiers if you are qualified to do so safely.