The Siren Board

I'm a little fellow who is enthusiastic in fire sirens in Lehigh County, Pennsylvania. Lehigh County has various types of sirens. They have loads of STH-10 sirens and a few mystery sirens. The closest and most active siren near me is the STH-10 at the Trexlertown Volunteer Fire Company. I have plans to record the siren up close and film other sirens within my area. I will upload pictures of the sirens when i have the time to do so.

This old rotted 5 is at the Wescosville Volunteer Fire Company. It definitely has seen its days. No skirt in the middle. I wish I had her.

This STH-10 siren is located in Trexlertown. It's standing not too far away next to the Lehigh Valley Velodrome. I believe this is the most active siren in the county. I have pictures of the siren's timer too. The siren has a time clock, which will deactivate the siren at late night hours into the early morning. I hope I can get a hold of the siren once it quits working. So far, there's no indication of it being replaced or removed. I do record siren ambiances with it since the siren is a little over two mile away from my home.

I believe this STL is longer in service and is removed. It's located at the Tri-Clover Fire Company in North Whitehall Township in Pennsylvania.

What kind of timer is this? I know it's an AF Timer, but I'm not familiar with seeing a tag that reads "Series A1". I'm not sure if this timer was used on a Thunderbolt once. This is one strange timer and the timing of fire signal is not the greatest. If anybody has the knowledge that could identify was model timer this is, I appreciate the help. This timer is located in the Trexlertown Volunteer Fire Company. The timer controls an STH-10.

Never seen an AF timer like that one before! I knew there was the large bulky ones, then the smaller ones like this one, but I've never seen one of this size labeled under FS&S.

The timer was installed in the 1950's along with the siren. I'm thinking this is a 1st generation timer. I'm still investigating on what model timer this is and how the thing works. I don't know why, but every time I see this, all I can think of is a Thunderbolt. Trexlertown Volunteer Fire Company and Lehigh County never had a Thunderbolt. If you want, I let you duplicate the image to see if anybody in the siren community knows what this is.

This STH-10 siren is located in Schnecksville. Currently active, but very lucky enough to survive after the roof of the firehouse's social hall collapsed in early July. I do not know what model timer controls the siren nor when the siren was put up. The siren is located at the Schnecksville Fire Company Station 22.

The Trexlertown STH-10 was set off this afternoon for a fire call. Here's a siren ambiance if you want to listen to the siren wail.

https://m.youtube.com/watch?v=1MXHveaiDMc

I can't tell what it is. A Sentry F2 or a Model D or L. It's located at the Alburtis Fire Company. On the map it says Sentry F2, but it to me look like an L. Can't tell.