Groove Tubes® GT-6L6-S Duets (RATED 1-10) – Medium
Groove Tubes® GT-6L6-S Duets (RATED 1-10) – Medium
Groove Tubes GT-6L6-S Gold Series tubes are matched 6L6-family power tubes sold in matched duet or matched quartet sets; this item is the quartet configuration. Guitar Center and Amplified Parts describe the GT-6L6-S as a medium-output power tube, generally 20-25 watts, with Groove Tubes' Medium 4-7 rating.
Specifications
Tube Type
| Tube number | 6L6GC / GT-6L6-S |
|---|---|
| Type | Power pentode |
| Matched set | Matched quartet |
| Gt rating | Medium 4-7 GT rating |
| Country of origin | Slovakia |
Electrical
| General power output | 20-25 W |
|---|---|
| Filament voltage | 6.3 V |
| Filament current | 0.9 A |
| Plate dissipation | ≤ 30 W |
| Plate voltage | ≤ 450 V; 250 V typical single tube, 270 V typical push-pull |
| Grid voltage 2 | ≤ 450 V; 250 V typical single tube, 270 V typical push-pull |
Matching and Use
| Available configurations | Matched pair or matched quad |
|---|---|
| Bias note | Changing between Low, Medium, and High GT ratings may require rebiasing by a qualified technician |
| Amp family fit | Used in many Fender professional/classic amplifiers that accept 6L6 power tubes |
Fit and constraints
Intended use
Constraints
To use it
Questions
What exact dimensions, mounting pattern, and model compatibility does this part support?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Is all required mounting hardware included?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Does installation require routing, drilling, soldering, or other irreversible work?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Description
Groove Tubes GT-6L6-S Gold Series tubes are matched 6L6-family power tubes sold in matched duet or matched quartet sets; this item is the quartet configuration. Guitar Center and Amplified Parts describe the GT-6L6-S as a medium-output power tube, generally 20-25 watts, with Groove Tubes' Medium 4-7 rating. Amplified Parts lists the matched quad part number as T-6L6-S-MQ-GT, made in Slovakia, with 6.3 V filament voltage, 0.9 A filament current, and up to 30 W plate dissipation per tube. Groove Tubes' reference guide notes that GT power tubes are graded and dynamically matched and that power tubes normally require correct biasing in the amplifier.