Vintage vs. Reissue Ampeg B-15

[Levitamin]

Well, I took it to the shop and my friend played it for hours in 100 watt mode. No problems. I wonder if it's a power tube issue. I think two of the four tubes are bypassed in 60 watt mode. Could this possibly cause problems??

 

[JimmyM]

Well, I took it to the shop and my friend played it for hours in 100 watt mode. No problems. I wonder if it's a power tube issue. I think two of the four tubes are bypassed in 60 watt mode. Could this possibly cause problems??

Again, this is a question best asked in the Amps forum. I have no clue.