The Scepter is a professional linear coil tattoo machine built for cartridges — the third generation of the Innercoil audio line. It runs on AC/audio power through an Electric Shark audiopower supply and Ink Weasel; it is not a DC or hybrid machine.

Setup & hardware

Questions & how it works

Q: What tattoo machines work with Ink Weasel?

Ink Weasel is designed for Electric Shark audio tattoo machines — including The Scepter linear coil (third-gen Innercoil), and compatible Electric Shark audiopower supplies.

Q: Do I need Ink Weasel to run The Scepter?

Yes. Electric Shark audio tattoo machines require the audiopower supply and the Ink Weasel app. Waveform, Hz, amplitude, and most Scepter settings are controlled from the app.

Ink Weasel, The Scepter, and the Electric Shark audio tattoo machine stack — answered here. Full machine tech lives at electricsharktattoo.com.

FAQ

What tattoo machines work with Ink Weasel?

Ink Weasel is built for Electric Shark audio tattoo machines — especially The Scepter linear coil, other Innercoil audio machines, and compatible audiopower supplies.

What is The Scepter?

The Scepter is a professional linear coil for cartridges — third-gen Innercoil audio. It runs on AC/audio through an Electric Shark amp and Ink Weasel; it will not run on DC. User guide →

Do I need Ink Weasel to run The Scepter?

Yes. Electric Shark audio systems require the audiopower supply and Ink Weasel. Waveform, Hz, amplitude, and most Scepter settings are controlled from the app.

Where do I buy Electric Shark tattoo machines?

Licensed pros can shop the Shark Shop at electricsharktattoo.com.

System

How Ink Weasel fits your setup

Pick your signal

Choose waveform, Hz, and level on the amp panel — or say it out loud.

Send to the amp

Audio routes from your iPhone via Bluetooth or cable to your Electric Shark audiopower supply.

Machine moves

The needle follows the shaped pulse — bidirectional control with less snag than traditional coil tuning.

Think of it like Spotify + Bluetooth speaker + needle — Ink Weasel is the playlist, the Electric Shark amp is the speaker, and The Scepter is what actually moves.

The Scepter

Built for The Scepter

A linear coil machine for cartridges (third-gen Innercoil audio). AC/audio only — not DC, not a hybrid. Waveform, Hz, amplitude, and most machine settings live in the app.

Scepter powerband: 80–100 Hz (factory-tuned via Ink Weasel)
Usable range: 1–110 Hz · electronically controlled 1–4 mm stroke
Frame: 7075 aerospace aluminum · carbon fiber drive bar
Power: AC / audio — requires Electric Shark audiopower + Ink Weasel

Scepter specs → User guide →

Machine technology

Audio tattoo machines

DC and PWM machines are limited by bar weight, spring tension, and duty cycle. Audio tattoo machines use amplified AC signals so every stroke is shaped in software.

The Scepter is the flagship professional machine in that lineup — a linear coil for cartridges, powered by audio through an Electric Shark amp and Ink Weasel. Ink Weasel is how you command it: Shark Tooth, Hammerhead, or JAWS at the Hz and amplitude your piece demands.

Hardware is sold through the Shark Shop. Browse all Electric Shark tattoo machines, then download Ink Weasel to run them.