Tested on my B&K 747b. Tube 1 is 81/82 and tube 2 is 82/82. The questionable reading is 65 and bad is 55. Both are negative for gas/shorts and stable on the life test. I purchased these as NOS. SOLD for both including shipping and paypal. Frank
Edited by Double F - 7/19/10 at 7:18pm
