sunn 72 model t tubes

[blind_dead]

Hi i was wondering if anyone could let me know the difference between 6550 tubes and the 5881 tubes. As i brought a set of tubes for my 72 model t and was sent a set of 5881 tubes i know i should not put them in. So could someone who knows about the technical side of amps let me know if its possible to put them in. thanks

[mckinnon audio]

  Hi there,the 5881 is a military # for a 6L6GC,a heavy duty one,but still not a 6550.Don't plug them in,you'll burn them up and maybe damage the amp.You could reconfigure the circuit to make them work,but I think it would be a waste of time.Get some good quality 6550's and you'll be fine,good luck Mel.