On Mar 18, 12:05*am, Matty F wrote:
On Mar 17, 8:42 pm, "The Medway Handyman"

wrote:
Those old fashioned shop bells that were on a spring loaded bracket. *When a
customer entered, the top of the door caused the bell to ring.

Can't you devise a system with lasers and mirrors and some electronic
circuitry to play a recording of an old fashioned shop bell? And a
battery backup in case of power failure.

P.S. I approve of your low-tech solution

Just a note re door bells.
In the late 1940-50s lived in flat on one floor of a big old house in
Liverpool.
Found remains of three different bell systems; ranging from mechanical
pull-wire, DC LeClanche cell battery room and front door bells to AC
transformer operated buzzers.
In the attic next to the big slate water tank with names written on it
from the 1890s, found the remains of a distinctively shaped actual
LeClanche cell!