4999SC AEC Merryweather ET SEFBbased Edinburgh at Lauriston Fire Station, then transferred to MacDonald Road Fire Station, seen in this photo.
originally had 4 tone horns (when brand new and based at Lauriston) but due to representations from the Police these were paired off to produce 2 tones from double hooter units.
the original 4 Bosch flat horns went through a 4 note / tone cycle, twice for every press of the floor button. Within the 4 notes the sequence rose in pitch as each note sounded. The Police objected, (as two tone horns were fairly new too), and so the workshop spaired them off to produce that peculiar continental two tone sound.
A second Police objection came when the ET had alternating flat flashing lights were fitted to the black radiator grille. The Police insisted they could be mistaken for traffic turning signals, and insisted they flash in unison. So another pairing job to make them flash together. see
picture 29698 Postcard: copyright Jerry Hepworth. Courtesy Geoff Pritchard collection acquired via the Fire Brigade Society.
Picture added on 07 September 2025 at 20:15
Added by Rob Johnson on 09 September 2025.