Use two power Tubes only ?

[k45t0r]

Hello....


I have a quick rod with KT 88 tubes.
I needed to replace them, but broke one.

I know that on Marshalls ppl remove the outer two tubes to half the wattage. 
Can I do that too ? I am running the amp on halfpower anyways ?

Or will running it with two tubes only damage the amp ?

Regards 
Carsten

[briman]

You can do it but I think you have to lower impedance setting. So if it was on 8 ohm with 4 tubes.....then switch to 4 ohm with 2 tubes. Someone please correct me if i am wrong....

[gtrjunior]

Mar 1, 2019 12:35:03 GMT -5 briman said:

You can do it but I think you have to lower impedance setting. So if it was on 8 ohm with 4 tubes.....then switch to 4 ohm with 2 tubes. Someone please correct me if i am wrong....

This^^^^^
I’m pretty sure you’re right.
Splawndude will know for sure

[splawndude]

Yes, cut ohms in half at switch