impedance for 100pf on 14MHz is -j114, perhaps not so good in a 450ohm
circuit

see http://www.noding.com/la8ak/12345/n12.htm for broadband techniques
with ferrite transformers, and you could always read W2FMI's book
"Transmission Line transformers", but I wouldn't use transmission line
transformers myself

73
jm
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J. M. Noeding, LA8AK, N-4623 Kristiansand
http://home.online.no/~la8ak/c.htm