Power supply for electromechanical clocks such as Slava. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Power supply for electromechanical clocks such as Slava. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Power Supplies

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At modern prices for batteries, electromechanical clocks of the "Slava" type are best powered from the mains. Especially if they are built into furniture, for example, in the kitchen.

The previously published schemes for such power supply are mostly transformerless, such power supply schemes are dangerous, since the clock mechanism is under mains voltage, so it is better to use transformer power (see figure).

Power supply for electromechanical clocks such as Slava

The scheme is not original. It includes a parametric current stabilizer C1, R1, I winding T1 and a 1,5 V voltage regulator at VD5, VD6. For the author, such a power supply has been paired with a small finger-type battery in the kitchen for more than 10 years. It is needed to secure the clock in the event of a power failure.

The entire power supply fits perfectly in the battery compartment of the watch along with the "finger". Transformer T1 - transitional from the radio receiver "Speedola" (VEF).

Author: O.G. Rashitov, Kyiv

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