• 10 National 12B4A tubes NOS.  Tested, see details.

10 National 12B4A tubes NOS.  Tested.These are all 12B4A tubes.They were tested on a TV-7.  The min is 32.  Here are the results.1.  602.  823.  724.  585.  846.  827.  788.  789.  7210. 76Test results are also written on the tubes.  These can be easily removed with a moist paper towel.

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10 National 12B4A tubes NOS. Tested, see details.

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  • Availability: In Stock
  • $23.95

  • Ex Tax: $23.95