[sdiy] Tubin'

[Roy J. Tellason]

On Thursday 04 November 2004 03:42 am, Pat Kammerer wrote:

> I'm working with a 6Y6G Pentode, and have found a datasheet here;
> http://hereford.ampr.org/cgi-bin/tube?tube=6Y6G
> I have very little experience with tubes, and I don't quite understand the
> base diagram.  I know which is which as for grids, plates, and heaters, but
> what I don't understand is the pinout.  There is no pin at the sixth
> position, which I would expect, but there is one at the first position. 
> Can anyone tell me if there are any special considerations for pin 1? (I'm
> assume it's "Not Connected", but what does the S mean in S/NC?)

"Shield",  which you don't have -- the "G" at the end of the number means 
"glass",  which means that there's also probably a metal-case version of it.  
In that version the metal case would be connected to pin 1.