The Tone City Green Tube is an overdrive pedal from Tone City Audio, which describes it as delivering "exceptional tonal texture and dynamic response." It runs on a DC 9V adaptor and draws 8mA, measures 12(L)*10(W)*5.2(H) cm, and weighs 0.49 kg.1
What it does
Tone City describes the Green Tube as delivering "exceptional tonal texture and dynamic response."1 The maker's headline feature is a toggle switch that selects between two compression modes. The up position is the classic mode, which the maker says offers tamed mid and high frequencies with strong punch at higher gain levels.1
For players who know the Tube Screamer family, this is the familiar territory of a mid-focused overdrive that pushes an amp or adds grit to a clean one. Tone City's own framing puts it squarely in that lineage1:
"Green Tube is our latest tribute to the classic TS overdrive, a discontinued model that many guitarists still hold dear."
If you want to hear it in the wider field, our Overdrive Pedals page sets it among the other overdrives covered on the site.
Components and build
Tone City makes a point of the parts on the Green Tube's board. The maker says it is loaded with high spec DIP components throughout, and lists the following:1
- Military grade metal film resistors
- WIMA audiophile capacitors
- Screened operational amplifiers
- Screened diodes and transistors
- Immersion gold plated PCBs
Power and specifications
The Green Tube runs on a DC 9V adaptor and draws 8mA, a light load by pedal standards that leaves plenty of headroom on a shared power supply. Tone City lists true bypass switching, a 1MΩ input impedance and a 10KΩ output impedance.1
| Specification | Value |
|---|---|
| Power | DC 9V adaptor1 |
| Current draw | 8mA1 |
| Bypass | True bypass1 |
| Input impedance | 1MΩ1 |
| Output impedance | 10KΩ1 |
| Dimensions | 12 x 10 x 5.2 cm1 |
| Weight | 0.49 kg1 |
Price and availability
Gearnews reported the Green Tube at $111.00 USD when Tone City announced the pedal on 18 September 2026, with UK and European prices given at the same time.2
| Region | Price (as listed by Gearnews, 18 September 2026) |
|---|---|
| United States | $111.00 USD2 |
| United Kingdom | £102.002 |
| Europe | 119.00€2 |
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Questions
Is the Tone City Green Tube true bypass?
Yes. Tone City Audio's product page lists the Green Tube as true bypass, so the pedal takes itself out of the signal path completely when switched off. Combined with its 1MΩ input impedance and 10KΩ output impedance, it is designed to sit on a pedalboard without loading down the guitar's signal when disengaged.
What is the Tone City Green Tube based on?
Tone City Audio describes the Green Tube as a tribute to the classic TS overdrive, a discontinued model that the maker says many guitarists still hold dear. The TS circuit is the well-known Tube Screamer style of overdrive, and the Green Tube adds a toggle switch offering two compression modes on top of that classic voicing.
What is the input impedance of the Green Tube?
The Green Tube's input impedance is 1MΩ (one megohm), with an output impedance of 10KΩ, according to Tone City Audio's product page. A 1MΩ input is the usual figure for guitar pedals and is high enough that the pedal will not noticeably load down a guitar's pickups.
How much does the Tone City Green Tube cost?
Gearnews listed the Green Tube at $111.00 USD as of 18 September 2026, when Tone City unveiled the pedal alongside six others. The same listing gave UK and European prices of £102.00 and 119.00€ respectively.
