Three Heat - Four Position Switch with Knob Mayco It is completely vitrified at

It is completely vitrified at Cone 10 to aid in translucency so care must be taken not to overfire

This 8" tool is made from imported hardwood with a satin-smooth finish

adding Frit 3134 to a recipe (to supply boron for example) does not require reduction of clay content

they are not location specific

Three Heat - Four Position Switch with Knob Mayco It is completely vitrified atThis switch is referred to as a 3 heat or 4 position switch. It's compatible with all Olympic electric kilns. This switch replaces previous versions of the same switch and comes complete as pictured with a new switch knob. The new knob is required as older previous switch versions knobs won't fit. Wiring Diagram Compatibility Chart