Philips JAN 12AX7WA Tube NOS / NIB (Very close Internal balance) strong! - $40 - (Hutchinson, KS)

Very Strong closely balanced Philips ECG JAN 12AX7WA Preamp Tube New Old Stock / New In Box / Never Installed / Never Used Philips ECG JAN (Joint Army Navy) 12AX7WA preamp tube. These are new old stock tubes, in their original boxes, and they have never been installed or used. On the glass of the tubes it reads in green: JAN 12AX7WA, Philips ECG, 8252, AGC, 34167, and USA. Near the top of tube in gray it reads 12AX7WA USA. The boxes are printed on one side as follows: 5960-00-827-8782, JAN 12AX7WA, 1 EA. ELECTRON TUBE, DLA900-82-C-3601, A 11/82. On the lid of the box is JAN 12AX7WA. Included are the curve traces for this tube. My curve tracer can plot both triode sections of a tube simultaneously. One triode section is plotted with a solid line, whilst the other is plotted with a dashed line. Seeing is believing; there simply is no better way to determine the performance of a tube than by plotting it's characteristic curve either manually or with a curve tracer. Both of the internal triodes exhibit nearly identical curves!!! Each triode section has 3600/3350 uMhos of transconductance!!! This is a well balanced very strong tube. I use a uTracer3 vacuum tube curve tracer, also pictured, at least the business end of it is.

Posted in Hutchinson, KS, Business for Sale
From ebay.com - 1 month ago