[kiling92]

However is very very strange…inside, the leben has 2 transformers,if I remove 3 valves on the left the ampli still work,if I keep the 3 valves in the left and remove from the right it stop to work..is it maybe possible that one of the two transformative has gone?when i increase at maximum the volume I feel the sound only from the right tranformator..and the distortion casually start from the half knob

 

[ardilla]

However is very very strange…inside, the leben has 2 transformers,if I remove 3 valves on the left the ampli still work,if I keep the 3 valves in the left and remove from the right it stop to work..is it maybe possible that one of the two transformative has gone?when i increase at maximum the volume I feel the sound only from the right tranformator..and the distortion casually start from the half knob

The two transformers on the left are output transformers.

You're saying it works with only the single right tube installed?

Did it play in both channels? In stereo?

 

[kiling92]

The two transformers on the left are output transformers.

You're saying it works with only the single right tube installed?

Did it play in both channels? In stereo?

Exactly,it work in stereo but making distortion

 

[ardilla]

Here is the schematics of the internal design of the Leben CS300 XS