- ELVA-1 produces BWO sources, IMPATT cavity stabilized oscillators, active frequency multipliers, balanced mixers, voltage controlled attenuators, PIN modulators, mm-wave digital radio, mm-wave transceivers, LMDS, heterodyne receivers, plasma diagnostics, radiometers ...www.elva-1.spb.ru
- Morion, Inc., S-Petersburg, Russia, High Quality Quartz Frequency Control Products: quartz oscillators (OCXO, OVCXO, TCXO, VCXO, XO), quartz filters, quartz crystals, quartz blanks ...www.morion.com.ru/index.html