Considering adding 160 meters to my Swan Mark 1 amplifier. The power supply
and RF deck were overhauled in 2003. At that time a new transformer was also
added to replace the shorted out original one. Since the RF deck was barren
when I got it I added a Radio Switch 86 bandswitch and new tank coils. It
works well 80-10 meters using the original 3-400Z tubes.
Thought I would use the instructions for adding 160 to the Heathkit 220. The
bandswitch has an extra contacts I could use so no relays would be required.
My question is would Toroid core type tank coil work in this application or
would it overheat? I've seen recommendations for using a Amidon T-225A-2
powdered-iron toroidal core.
Thanks,Bill KO4NR
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