[600MRG] FT-37-WC toroid

[Paul N1BUG FN55mf]

Thanks Scott and others. What a great, helpful group! That was the
missing link, u=10,000. Fair-Rite equivalent is 76 material, readily
available at Digi-Key but they don't make a coated version. I can use
those if I don't find coated.

I will check Epcos/TDK and other manufacturers for an equivalent
material to see if coated ones are available. I better get outside to
work on antennas before several days of rain. I have the info I needed
and will find suitable cores.

73,
Paul N1BUG