... or other tall buildings.
Everyone knows the red warning lights located on tall buildings. These are called obstruction lights and are meant to warn air traffic about buildings exceeding a particular hight - especially in areas near to airports. A model reproduction of these red lights is an effective supplement to a layout's illumination at night. F.i. at a smoke stack or on top a water tower's spire.
The integration into a building
without visible "electrical installation" mainly is nothing but a matter of the employed materials. In the examples shown, standard LEDs with a diameter of 3mm were used. The connection terminals were shortened (2mm) and enamel-insulated wires were soldered to them. To immitate a housing, a small amount of a methacrylate based glue (f.i. "Stabilit Express" by Henkel) is suitable. It can be painted in grey or black, after drying.
A hidden cable routing at the smoke stack goes without saying.
The water tower's spire was drilled through from both its ends
using a long 1.5mm drill. Electronics were placed under the tower's
little roof and inside the building under the smoke stack.
A protection against atmospheric influences can be achieved by
potting the boards. The picture on the left shows that I refrained
from the latter.
The wiring diagram below shows the operating principle using a commercial timer (NE555). Flash sequence and ratio are detemined by R1 and R2. The part on the left is necessary only if AC power will be supplied.
The wiring diagram below shows the operating principle using a commercial timer (NE555). Flash sequence and ratio are detemined by R1 and R2. The part on the left is necessary only if AC power will be supplied.
