Executone, std-and pillow speaker stations.
Dukane std (non-pillow speaker station)
Picker Briggs std. and pillow speaker
Edwards - Altec std. station
Sylvania std. station
Auth - All stations with no holding relays
Normally open contacts...Pressing Bulb
makes contact that is maintained until
reset button (on top of plug at wall station)
is pushed down. No system relay is
required. Replaces pull chains or string
actuated type. Electrical plug has tip and
sleeve jack. Rated 1/3 amps 24 volt AC/DC
Suitable for use in oxygen atmosphere.