Below is a list of sirens which are still installed, but derelict and abandoned by the county of Los Angeles. I have personally verified these locations within the past few months as still being in place.
There are probably 100 more which are believed still existing , but that I have not yet verified.
SAN FERNANDO VALLEY:
Corbin Ave, NE corner Vanowen St Fed. 500T
Corbin Ave, s/Devinshire *New style pole
Reseda Blvd, n/Lassen Fed. 500T
Deering Ave, s/Sherman Way Fed. 500T
Chandler Blvd, on Firehouse roof e/Tujunga Fed 5?
Top of Cahuenga Pass at Universal Studios dwy Fed. 500T
Filbert St at Juvenile Hall dwy Fed 5?
Winnetka Ave, s/Parthenia Fed. 500T
Lubao Ave, s/101 Fed. 500T
Fallbrook, s/Victory Fed 5?
Brand Blvd at Stranwood *Pole in Fire Sta Yard Fed. 500T
Burbank Blvd at Bellaire Av *Pole Fed. 500T
Victory Blvd E/Tujunga *Pole in 99c store lot **Painted hot pink Fed. 500T
Arminta St, SW corner at Reseda Bl *Pole Fed. 500T
Winnetka Ave, NW corner at Strathern *New style pole Fed. 500T
CULVER CITY:
Braddock Dr, at Sawtelle Allertor
BRENTWOOD:
Barrington Ave s/Sunset at SW corner gas station Fed. 500T
Charles