Power Pentode
This is a matched pair of Sovtek 6550WE tubes
manufactured and labeled for Groove Tube.
These are rated at Number 2.
The Sovtek 6550WE, also known as a Groove Tube GT-6550-R,
produces early distortion and has a softer attack. It is
best used for Rock and Blues solos.
In older Marshall's that have 6550's, this tube will
give you more compression and distortion at lower levels
than other 6550 tubes.
6550WE tubes are great for bass amplifiers. The slight
boost in the midrange frequencies, makes it great for
lead guitar solos.
The Sovtek / Groove Tube 6550WE Vacuum Tube is a Glass
octal type used in the output stages of high-fidelity
audio amplifiers. It requires an octal socket.
Electrical Data:
Heater Voltage ................................ 6.3 V
Heater Current ................................ 1.6 A
The picture shown is simply for reference.