POWER SUPPLY

There are two options regarding the power supply for a clock system.
1) Direct from the A.C. Mains, using a transformer and a rectifier.
2) Using the appropriate numbers of accumulators who are constantly trickle charged, thus
    securing the system to run, independent from the continuity of the mains.

 

Fig. C8 Battery warning Bell.
When the battery weakens, the impulse time will lengthen, thus enabling the hammer to reach the bell with as a result: one blow each half
minute.
c. 1930

 

……………………………………………………

….   ………… 

 

 Fig. C150 Trickle Charger. Maximum usable capacity: 25 milli-amps, adjustable.
c 1935 

Trickle charger interior. Terminals: Top/left: to accumulators.Top/right: in series with the clock system. Near the transformer: mains, 200/250 .C.………………………………………………..

 

 

  ………….. 
 Fig. 1132 Transformer.
Output 8/16/24 volts,
100 watts.
1930’s
 

Battery, small unit with 6 volts output, fit for a small system.
 
 ……………………………………………………..
 

 

 

  …………..