[radiotechman]

Thanks very much! I did find one listed at The Tube Depot in Orlando, FL for around $7 or $8 bucks. They also had the 7W7 listed for $1. Shipping would probably cost more than the two tubes combined. I'll have to see what other tubes I need before placing the order. This is a great forum. I have come to appreciate it in just a short time. As far as testing the FM1000 tube, I believe I can manage to set up the Triplett 3444 tube tester if I can find the tube specifications/data, perhaps in an old tube manual.