Model 5
| Model 5/7, and Model 5T | |
 | |
| Company | Federal Signal Corporation |
|---|---|
| Produced | ?-1970's? |
| Type | Electromechanical |
| Sound output | 112 (Single Tone) 109 (Dual Tone) dBc at 100 feet |
| Frequency | 690 (Single Tone) 690/517.5 (Dual Tone) Hz |
| Horsepower | 5, or 7 (Model 7's) |
The Model 5/7 was a siren produced by Federal Signal Corporation. The siren came in the three diferent port ratio's. 12, which is the most common. 8, which isn't found on many models, and 9/12, only found on Model 5T's. A Model 5 is a three phase siren, and a Model 5B is single phase. Model 7's are three phase sirens like the Model 5, but seem to have a faster windup. However, Model 5T's, are dual tone only.