Looking over the pictures again I noticed in the bottom right of the builders plate the number 5520. Is that a serial number or a date code? If it's a serial number it's probably mid to late production. If it's a date code I'd think 55-year 20- 20th day of the year. I could also be misreading the d...

Brendan W wrote: ↑

Fri Nov 27, 2020 2:56 am

The only thing I can tell you about your siren is that it is pre-1966. That's when Siemens-Schuckert became Siemens AG. Welcome!

thanks for the information I did not know

Since it's from Argentina and runs on 50hz it's probably going to have a different sound to most other 8 port sirens (eclipse 8, model 5 single tone, some sentrys) since those are 60hz. I know there's a model 3 in Germany on 50cycles (no idea how an american siren got that far overseas) but I forge...

Hello, I am from Argentina and I wanted to show you my siren, it is old and I bought it without working very rusty and stuck, I could repair it, but I still could not test it much, I would like to get more information about it, it has an identification plate 8 ports, thanks