Stereo Power Amp Question

[Pastrami]

Disclaimer: this may end up being a silly noobish question

I just got myself a Peavey classic 120/120 tube power amp. I've been running it bridged mono into an 8ohm 410.

Now lets say I wanted to use channel one on it's own, and I didn't have a cab plugged into two, would any damage come to the amp since channel two is technically on as well but without a load?

 

[dincz]

There are separate standby switches for each channel, so just leave the unused one in standby mode.

 

[bobcruz]

Also, leave the attenuator/volume knob for the unused channel all the way down just in case the standby switch gets bumped into the on position.