Those low output type tubes 6DJ8/6922 should last for many years without replacement. You should take a look at some vintage GE or Sylvania tubes. You can’t beat those vintage tubes. I use them in my line stage and phono preamp and have never had any failure after about 10 years of use!
Which tubes best for Magnum Dynalab 106t tuner?
Which tubes are best for Magnum Dynalab 106t tuners? I have used Telefunken from Magnum Dynalab directly with mixed results depending on which quality tubes. Since Covid I found myself searching tubes from a different source and am now using Amperage tubes which are quite nice. Which tubes do people find the best for the Magnum Dynalab tuners?