Four clear glass vacuum tubes with metal pins and red labeling reading GT EL84 and Groove Tubes.

Groove Tubes® GT-EL84-S (RATED 1-10) – Medium Quartet

$179.99
$179.99
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Four clear glass vacuum tubes with metal pins and red labeling reading GT EL84 and Groove Tubes.
  • Four clear glass vacuum tubes with metal pins and red labeling reading GT EL84 and Groove Tubes.
  • Four clear glass vacuum tubes with metal pins and red labeling reading GT EL84 and Groove Tubes.
Groove Tubes® GT-EL84-S (RATED 1-10) – Medium Quartet

Groove Tubes® GT-EL84-S (RATED 1-10) – Medium Quartet

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.

$179.99
$179.99
Condition Brand New
Specs Verified model facts
Checked against 1 listing
Verified
Use Owners of 6L6-equipped guitar amplifiers needing a matched quartet in Groove Tubes' medium 4-7 rating range.
Requires model-appropriate mounting hardware, installation tools or qualified technician
In stock Ask a question

Specifications

Power pentode · 20-25 W

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

Owners of 6L6-equipped guitar amplifiers needin… · 20-25 W

Intended use

Use Owners of 6L6-equipped guitar amplifiers needing a matched quartet in Groove Tubes' medium 4-7 rating range.
Not for Players whose amp specifies EL34, EL84, 6V6, or other non-6L6 power tubes, or anyone unable to verify safe compatibility and bias requirements.

Constraints

Power20-25 W
ControlsPower-tube replacement can require bias checking or adjustment. GTIN/UPC was not verifi...

To use it

Required model-appropriate mounting hardware, installation tools or qualified technician

Questions

3 to ask before buying

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

Product details

This matched quartet of Groove Tubes GT-6L6-S power tubes features a Medium 4-7 GT rating, delivering 20-25 watts of output. The 6L6GC pentode tubes are manufactured in Slovakia and rated for plate dissipation up to 30 watts. Compatible with many Fender professional and classic amplifiers accepting 6L6 power tubes, though rebiasing may be required when switching between GT rating levels.

Seller notes: Groove Tubes® GT-EL84-S (RATED 1-10) – Medium Quartet. GROOVE TUBES GT-EL84.

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