Since my first BHK 300 thread got sort of hijacked, here's mine on evaluating tubes

Audio Components Amplifiers
18

Oh lord help me–I’m incorrigible. After culling the 7 quads of tubes to three–the original Genelexes, the Mullard/RTC E188CC/7308s, and the Matsushita/National 6DJ8s–I now have FOUR MORE sets on the way. They are:

  1. NOS PCC88/7DJ8 versions of the Matsushita/Mullards,
  2. NOS Siemens PCC88/7DJ8s,
  3. NOS Mullard E188CCs, and
  4. A second set of NOS Siemens PCC88/7DJ8s.

Jeez, it’ll take another four weeks* just to get these run-in! Oh well–no one ever said that tube-based hi-end audio was for the rational.
:thinking:
:wink:
:yum:

  • We’re now on Arizona Public Service’s 3PM - 8PM-peak-rate program, so I now don’t run my '300s between 3pm and 8pm, so I get only about 140 hours per week of break-in time. A week per set sounds to me like a good target.