On 1/14/2025 1:57 PM, N4IJ wrote:
Anyway it looks like it either got really
hot or maybe lightening, not sure. Attached pic of apparent hot spots.
This is a pair of FT240 toroids glued together with teflon wire pairs etc.
Balun choke, not unun.
No attachments on this reflector. Describe the visual evidence that it
got hot. What core -- that is, what material? The only material I know
of that's useful on HF is Fair-Rite #31. Is the core cracked? What is
the transmission line used to wind it? Coax? Exactly what coax? Two-wire
line made from two insulated conductors? Magnet wires? Do you see any
evidence of arcing, or insulation overheating?
73, Jim K9YC
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