Raytheon knobs are familiar on some Collins, HP and military/government equipment.
This division of Raytheon was purchased by Electronic Hardware Corporation (EHC).
The Raytheon catalog of knobs are still being produced by EHC.

Catalogs
http://ehcknobs.com/pdfcat.html

Instrument knobs
http://ehcknobs.com/selector.html

Military knobs
http://www.ehcknobs.com/selector/index.php?series=109

Electronic Hardware Corporation (EHC)
320 Broad Hollow Road
Farmingdale, New York 11735
http://www.ehcknobs.com

Phone: 631.752.1950
FAX: 631.752.1971
eMail: sales@ehcknobs.com
1-800-752-1680

===
w9gb