[SECC] Source for GU74B tubes

[K9AY]

Hi guys,

I have lived on the edge too long -- without spare tubes for my Alpha 99 
(GU74B/4CX800). The originals are still OK, but not as lively as they once 
were.

AlphaPower wants $595 for a matched pair -- can I do better, and from a 
reliable supplier?

What are your experiences with tube dealers? It looks there are plenty of 
small operations with good prices, but there are also plenty of horror 
stories about bad tubes and worse service.

Thanks!

Gary
K9AY