These terminal blocks are connected to the taps shown on the transformer diagram in figs. ... lighting units and finally selected the 6.6 ampere series 80 candle- power and 250 candle-power type C mazda lamps. ... It was thought that the 250 c. p. lamp could replace an a. c. series 6.6 ampere enclosed arc lamp as both have approximately the same illuminating value. ... 5. Diagram of the wiring and apparatus installed in the base of a five light post. 1 and 2. Connectors mounted ohanbsp;...