Lamps, Signalling No....
Lamps, Signalling No....
From lamps, signalling, no.2, 6 volt, to the larger section alarm lamps; all played an important part in the running of a typical telephone exchange.













Photo: Lantern array of section/rack alarm. Note the bell gong and striker, just visible above the upper lantern © LSA May 2012.
| EXIT | Lamps |

Lamps, No.2
Lamps, Signalling, Number 2
A selection of lamps, signalling, number 2...

Photo: Lamps, signalling, number 2...45V, 17V, 6V, 50V and 24V © LSA June 2012.
   
Lamps No.2 Chart

Colour Grey Red Red/Yellow Yellow/Red Orange Yellow Black Blue White/Blue White Purple  
Voltage 6V 12V 12V* 12V* 17V 24V 36V 40V 45V 50V 60V  * current values vary.

Note: White lamp (50V) not for use with plastic lens, due to high current value (gets hot)!

Lamps, No. 8
Lamps, Number 8
A selection of lamps, number 8, 50 volt.


Photo: Lamps, number 8, 50V on an alarm panel © LSA June 2012.
   
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