Matched pair of JJ Electronic 2A3-40 tubes. NOS. A matched pair of these tubes sell for over $400 Cdn retail not including taxes and shipping. Specs can be found here: https://www.tubesandmore.com/products/vacuum-tube-2a3-jj-electronics I have many other NOS tubes (approximately 125) - all of which I am selling for at least a third off retail prices. If you're interested I can send you the list. Further discount if the entire lot is sold. Cross posted