Testing 6146B/8298A with a 177/b

[Ed Richards]

The best tube tester is a new pair of tubes. You need some spares anyway
(G). Tube testers are only an educated guess and should never be taken as
fact. No tester is going to put 800 volts at 30 Mc. on a tube to test it.
Good luck.

Ed Richards

On Mon, 7 Aug 2000 11:09:30 -0400 Marco Ciocca <marco at PA.UKY.EDU> writes:
> I have been fighting with a SB-401 heathkit transmitter, and I have
> come to
> the conclusion that the finals (6146B/8298A) are probably defunct.
> I
> tested them with a simple emission tester and, although barely, they
> pass
> as "good".  I 'd like to use my transonductance tester, however, for
> a more
> reliable test.  Problem is I don't have the settings for these
> tubes.  Nor
> does the extremely detailed collection of test setting prepared by
> Nolan
> Lee (http://www.acadiacom.net/nlee/i177_index.html).
> Anybody can help?
>
> Thanks,
>
> Marco (one of the new almost codeless extra)
> Marco Ciocca                            KF4URS
> Dept. of Physics and Astronomy          phyciocc at acs.eku.edu
> Eastern Kentucky University             Office: (606) 622-6172
> Richmond, KY 40475                      Fax: (606) 622-1399
>
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