Re: Tubes for Hammonds & Leslies (and more)

[ezeran@concentric.net (Ed Zeranski)]

>I'm sorry if I was confusing.  The tubes from Groove Tubes are available in 
>different "hardness" ratings, 1 thru 10; ie; the lower the hardness number,
the 
>quicker they will distort, the higher the rating, the "cleaner" or more 
>resistant to distortion.  My tube tester does -not- have a "hardness" 
>parameter, but measures shorts, grid emission, dynamic conductance, and 
>"good/?/bad" - probably like most testers. 
>stleigh@ibm.net
>Canine Training - Lutz, Florida
>
>
>    Lutz, FLA!! I have family in Pasco County, Plant City, etc. I missed a
tube curve tracer a few months ago. Bummer! I guess it would have worked
like the transistor curve tracer that Tektronic used to build. Probably the
best way to check individual toooobs for distortion would be to have an
amp/test bed where the base band ops/parameters were known then compare each
tube over freq range with varying inputs and loads.

 Edward J Zeranski