[Boatanchors] testing a 12BY7?

[Peter Markavage]

I don't even think that tester will even test 6146's. Great tester, but
leaves a lot to be desired for testing tubes from the mid 50's on up. I
think the 12BY7 came out in 55 or 56.

Pete, wa2cwa

On Wed, 17 Jan 2007 01:40:07 +0000 "Eugene Hertz" <ehertz at tcaf.org>
writes:
> Hello all,
> 
> Does anyone know what settings to use on an I-177B tube tester to 
> test a 12BY7 tube? I have checked the internet and downloaded what 
> appears to be the most up to date chart which I located here: 
> 
> http://www.acadiacom.net/nlee/i177_index.html
> 
> I have checked for 12BY7, 12BY7A, 12BV7 and 12DQ7 which I understand 
> are substitutes and I cannot locate these in the charts.
> 
> Perhaps someone knows that this is equivalent to something else?
> 
> Thanks