Vacuum Tubes (2) RCA 5751's Tested

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  • Item Category: Tools
  • Source: eBay
  • Sold Date: Nov 22, 2014
  • Channel: Auction House
Up for auction are two RCA 5751 black plate, triple mica vacuum tubes in very nice condition. Both tubes were tested on a Hickok 547 tube tester where 1500 micromhos is mutual conductance and 900 is a minimum. One of the tubes tested at 1700 and the other at 1710 micromhos. You might could say that they are a matched pair, but for sure they both tested very well. THANKS FOR LOOKING!!!