RBTO RBTO is offline
- About RBTO
- Retired and out there!
- Electronics, Astronomy, Photography, Chemistry, and a few others.
- Electrical engineer for over 40 years with specialization in optical and photonic instrumentation. Former member of SPSE, IEEE, and OSA. University instructor for 30 years, retired. Avid HT enthusiast with interests in audio electronics, and 3D projection.