The official service manual only lists 6 models: https://www.civildefensemuseum.com/sirens/manuals/thunderbolt/Tbolt-2.pdf Service manual for Series B Thunderbolt: https://www.civildefensemuseum.com/sirens/manuals/thunderbolt/Tbolt-3.pdf And it looks like the oldest Thunderbolts may only have had th...

Yeah.... word of advice. Don't link to Discord attachments, because they are not permalinks.

UPDATE:

New testing schedule: viewtopic.php?p=224295

The do weekly tests now, each Friday at noon (12:00 PM). They will be growl tests, no longer short alert blasts.

https://www.kten.com/carter-county-to-c ... 858cc.html

Fanman wrote: ↑

Fri Aug 23, 2024 12:25 pm

It’s nice that they chose a siren with a mostly similar sound to the rm-130

I thought so too, until I found out it was an Equinox and not a 2001-130. So it'll sound pretty much just like a T-128.

Most of the sirens in Ardmore, Oklahoma are unrecorded, including the new Federal Signal Equinox just recently installed (replaced the courthouse RM-130).

Some of the old RM-130s were photographed before they were removed. Only one ambience video exists of them sounding off during a tornado warning.

Quick update: It's not a 2001-130....it's an EQUINOX!!! Also, Ardmore has apparently switched all their siren controllers and activation system from ASC to Federal Signal.



https://www.youtube.com/watch?v=8TqEUc7I2-g

Yep, I was notified on Reddit a day or two ago.

This is the first Federal Signal siren that's been in Ardmore since the RM-130 upgrade in 1998. That's 26 straight years of ASC sirens!

A year or two ago, I released a video on my siren YouTube channel (Siren Archives) about Ardmore's siren system testing schedule and the fact that the last remaining RM-130 over there was still active and working. Just yesterday, I received a comment on that video claiming that the RM-130 has been r...

I think A and B have to do with the type of motor (1-phase vs 3-phase?)

And T denotes dual tone. So Thunderbolt 1000 is single tone and Thunderbolt 1000T is dual tone. The 1003 doesn't need the T because it only comes in dual tone.