1850, or 1950? Sorry Jim, I had too... :)
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/4/20 11:24 AM, Jim Brown wrote:
Not really. ICAS and CCS have been used by power tube mfrs longer than I
have been reading their data sheets in the '50s.
73, Jim K9YC
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