Low Pressure Sodium Lamp Control Gear

Thorn

British Lighting Industries-branded AME 53109.H ballast, for 45, 60 and 85 W SO/H and SOI/H lamps, and for 40 - 60 Watt SOX lamps (the forerunners of 35 - 55 Watt SOX lamps). The tape over the wiring terminals is because one of the screws has sheared, and the tape prevents the head from being lost.

BLI-branded AME 53182.T ballast for 40 Watt and 60 Watt SOX lamps, and 45 Watt, 60 Watt and 85 W SO/H / SOI/H lamps.

AME 53182.4 35 Watt/55 Watt ballast. (This is a later version of the above ballast.)

Thorn EMI G53332.4 35 Watt/55 Watt SOX ballast.

G53232.4 ballast for 90 Watt SOX and 140 Watt SLI/H lamps.

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