6146 et al.

[Russ Hines]

That's pretty much it, Ed.  The 6146, 6146A, and 6146B are essentially the
same tube, with each letter version designating an improvement in the basic
design.  The 6146W is a "ruggedized" 6146B... heftier plates, grids, etc.

If one can afford it, go with 6146W, with B version next best.

73,
WB8ZCC

Edward Swynar VE3 CUI wrote:
>
> As regards the 6146's, as far as I know, the aplha suffix denotes greater
> plate dissipation, in growing increments by letter, with the "W" version
> being "king of the hill" in this regard---king of the hill in price too, at
> least here in Canada, where brand new 6146W's cost TWICE as much as a lowly
> 6146...
>

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