On 31 Jan 2006 at 14:20, Brett gazdzinski wrote: > Over all the years of using tubes, I had one 75th loose its filament, > and > one 4d32 has a piece of metal floating around in it (but it works), and > I have an 811 with no plate cap. The 75th was the only one that ever > failed,
Brett - I had a few dozen of those tubes, and the first 75th I tried worked fine. After using several of them in the same circuit I got to about the 12th one and noticed a slightly lower plate current. By the time I got to the 75th 75th I was just confused. (LOL!) Bry, AF4K
