New Info About Fedelcode Dual Rotors

[TheSirenFan]

Hey guys! Just found a post on FB that shows some great new info on Fedelcode “dual rotors”. Apparently, we got our order mixed up on the “Mach X”. Here’s what I have found:

Model and size comparison.

5A633C70-4075-4B37-80F9-DBEB1166F89F.jpeg (126.65 KiB) Viewed 1781 times

More info about the “coding” mechanism.

17168C29-01AB-4B3C-A118-42E148EF67BE.jpeg (240.54 KiB) Viewed 1781 times

Botkins, OH Mach 1.

4E94F550-A186-46D9-99B2-1D8F77DB4CA5.jpeg (47.89 KiB) Viewed 1781 times

Volga, IA Mach 3.

699BEAE7-A5AA-4E4B-B142-D3B714A165C4.jpeg (219.08 KiB) Viewed 1781 times

Halifax, NC Mach 5.

671E00CB-9C35-45E0-A21E-499ECA32C1AE.jpeg (320.99 KiB) Viewed 1781 times

Salisbury, MO Mach 10.

834867C0-9A61-4AD2-86C1-57FF22D409B1.jpeg (79.15 KiB) Viewed 1781 times

[Ziginox]

A small note on "Mach", you may be missing a part. The tags on other early Federal Electric sirens would say "Type Mach." and then have an empty spot for the model to be stamped. So really, you're looking at a "Fedelcode Type Mach. 10" in that last picture. I unfortunately am not sure what "Mach." stood for, I can only guess "Machine".