These two 6B4G 's are from my 95-year-old father's collection and have his notes written on them. I tested these last week with a Heathkit TT-1 and found that they both tested at 2500 micromohs. My dad was a Korean War veteran who was an engineer and audiophile who made his own amps and speakers. All his gear has been meticulously maintained.

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Listed7 days ago
ConditionVery Good (Used)
Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more
Brand
  • Ken-Rad, Raytheon
Model
  • 6B4G
Finish
  • Glass, smoked glass
Categories
Year
  • 1950's
Made In
  • United States

Product safety information may be available here.

JNC Tubes

North Richland Hills, TX, United States
Joined Reverb:2026

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