Variable vacuum capacitor cktb1000/3.5/79 The cktb1000/3.5/79(ii) vacuum capacitor cross reference Comet old type:cv05c-1000kw/5 Comet new type:cvvi-1000ac/5-ked-m Cktb1000/3.5/79(ii) use vacuum as dielectric with ceramic envelope , which have the following features:high voltage , small size , high q value, stabilization capability , high reliability , low price. Variable ceramic vacuum capacitors are widely used in influence heating , medium heating , the equipments for communication transmitters and broadcasting etc.