The Bel 2818C isolation transformer and the Bel 0560-6600-76 signal-boost transformer are both claimed to be engineered specifically to maximize the performance of Lucent Technologies' WildWire 1690 series chipsets, which facilitate ADSL connections. Both transformer have an operating range of -40°C to 85°C. The 2818C is designed to UL 1950 supplementary insulation requirements for voltages up to 250V. Pricing for the Bel 2818C is $1.95 and the o560-6600-76 is $1.50, each/10,000. Delivery is from stock to four weeks ARO.