The Jauch Group is one of the leading specialists for quartz crystals, crystal oscillators and battery technology. Established in 1954, we are now one of the leading companies in the frequency control products industry and a recognized expert on the future market for lithium ion and lithium polymer batteries. The Jauch Group is one of the leading specialists for quartz crystals, crystal oscillators and battery technology. Established in 1954, we are now one of the leading companies in the frequency control products industry and a recognized expert on the future market for lithium ion and lithium polymer batteries. Jauch crystals and oscillators are available at Dove Electronic Components, Inc.