Right, the best tuner depends on what you want to do. For balanced feed
lines I use the Bliss Z Matchmaster. It uses two synchronized 30 mH roller
inductors and a 1000 pf vac. variable. One of the things I like about it is
that the roller inductors are in-line on a threaded shaft with fixed taps so
the coils move back and forth. I think this is a bit more rugged and stable
than two rollers turned together from a single shaft with rubber belts.
This is a transmatch for low band QRO. It would not be necessary for lower
power and/or (obviously) unbalanced lines.
Rob Atkinson
K5UJ
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