Maybe that explains an automobile antenna I found once in the past.? I was surprised that what looked like coax was actually a piece of plastic tubing, maybe 1/4" I.D., with a thin wire running through the center.
Joe, K1ike
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On 4/7/2025 1:05 PM, Jim Lux via groups.io wrote:
The big requirement for coax on voltage probes is low capacitance - you generally don't worry about impedance.
