A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
This circuit employs two multivibrators and a linear integrator to produce a tone whose frequency rises and falls smoothly in the manner of a siren.
This circuit employs two multivibrators and a linear integrator to produce a tone whose frequency rises and falls smoothly in the manner of a siren.
Electronic siren
Elektronische Sirene
Harding, M. (author)
Radio and Electronics Constructor ; 29 ; 44-46
1975
Article (Journal)
English
| Online Contents | 2014
War needs inspire Siren design
| Engineering Index Backfile | 1942
Puente Soivio - Siren Arkkitehdit Oy
Online Contents | 2001
J. S. Sirén : arkkitehti 1889 - 1961
| TIBKAT | 1989