What are some of the better tuners out there?

I find myself needing to replace my tubes every 4 months or so and I don’t use my tuner that much. I have sent in my tuner to Magnum Dynalab several times in the last 12 years for various maintenance repairs but the tuner has been fine for several years now just needing to have the tubes replaced from time to time. I like the sound of my tuner and I will keep my tuner as it is. 

I just got my Magnum Dynalab md106t tuner back from repair and had the caps in the output section upgraded and I upgraded the tubes to Telefunken tubes and my tuner sounds good again. It should further improve with play time. My tuner is 12 years old but I will keep it.

My MD106T tuner is sounding better with play time on the new caps and tubes. I find that the tuner is settling down nicely and sounds good. I am hoping with the work done on the tuner that the tubes will last longer than before the repair. 

Swapping the fuse which came with the MD106T for a Synergistic Research purple fuse has improved the sound of the tuner very much.