Andy,
You have far too much time on your hands... :)
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 11/7/20 8:28 AM, Andy Durbin wrote:
"Careful inspection of the air-spaced variable revealed a small bug between the
plates. It was carefully extracted and viewed under the microscope. It was well
charred!"
For the detail oriented - bug was identified as attagenus pellio (carpet
beetle). They are common here in Arizona. They have a very high crush
resistance but it seems poor tolerance of high RF voltage.
https://en.wikipedia.org/wiki/Attagenus_pellio
73,
Andy, k3wyc
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