Low Pressure Sodium Lamp Control Gear

GEC / OSRAM

For wiring diagrams of the first two ballasts employed on this page, please click here.

Z1616 35 Watt / 55 Watt ignitor-ballast. Click here to watch a video of the lamp in my Simplex Aries 55 Watt SOX lantern being operated by such a ballast.

Z1619G 35 Watt ballast, with RIC Z1757X 65 F capacitor (dated February 1985) and replacement Parmar ignitor - the original Z1598G ignitor was still in the column base, and can be seen below the ballast.

Close-up of the Z1598G ignitor.

GEC Z1619P ballast for 35 Watt lamps (dating from June 1987) and OSRAM BSX55LL-P ballast for 55 Watt lamps (dating from February 1991).

Z1633P leak transformer for 135 Watt / 180 Watt SOX lamps, from February 1982.

Z1634X ballast for 135 Watt / 180 Watt SOX lamps.

Z1736 ballast and TCC 18 F capacitor, for 45 Watt - 85 W sodium lamps. Formerly, this control gear ran the lamp fitted in a very rare sodium ESLA lantern on the Market Place, in Chapel-en-le-Frith.

 

Close-up of the leak transformer's label. If the "sodium lamps" mentioned here are the original SO/H type, this will have been made no later than 1955; this being the year that the improved SOI/H lamp was introduced.

 

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