Engesig OMNI. It's a modulator clone for the Brazilian market produced by Engesig.

The siren came first, the tower was built around it.

For automatic attack, the way I've seen it on most timers is a rotating cam with a switch on it. as the cam rotates, a switch that's fixed in place will be depressed by the cam starting up the siren. when the cam completes one rotation, there's a drop and the switch gets deactivated while the surfac...

bit late, but i found a map (not yours) that contains even more of them, it can be found here : https://www.google.com/maps/d/viewer?mid=1sb_seny3BX1iyMaS29cnnT8fWkU3Nc7q&hl=en_US&ll=34.01633754438645%2C133.48808342567588&z=5 i cannot belive how many there are on that map, but apart fro...

Ports I know that the actual number of ports on each rotor is pretty unknow so, I decided to calculate the ports for the Tokiwa siren and here are my results.. F3-6 port G3-7port A4-8 port (Very sharp) B♭4- ?8 port through gear reducer C4-9 port D4-10 port E4-?12 port F4-12 port G4-14 port A5-16 po...

Sirens were invented by Charles Cagniard de la Tour. Also, he wanted to use the siren as a warning alarm on ships. And yes, the siren was also used for music so they can measure exact frequencies

They were built for fire departments to call the firefighters. They also could've been used as warning devices but that mostly came later.

Kishiwada city hall had a 14 note music siren. The first two are correct.

The LK-2001 is an SRNB clone. The siren in the video was an SRN. It is still pretty funny with them hoping that no enthusiasts find it.

Happy new year! let's see how this year goes.