In article , wrote:


As for the "true" story, only an engineer who was there
at the time could say for sure.

The only thing I know is that the letter "R" stood for "resilient
socket insulator" which differentiated it from the older phenolic
insulated "XL" model.

--
Bob Olhsson Audio Mastery, Nashville TN 615.385.8051
Mastering, Audio for Picture, Mix Evaluation and Quality Control
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