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To hold up to four dry cells beneath it enables use of one, two, three or four cells.
Supertek single cell holder is a high quality easy to load and easy to remove the standard D size battery. It is fitted on the sturdy plastic base. 4mm sockets are provided for the output. Two or more cell holders can be used for the parallel or series combinations. Supplied without battery.
For measuring density of electrolyte in lead-acid cells. A hydrometer float is contained in a glass body which is provided with a rubber bulb and a nozzle.
Provides diode rectified DC output voltage at rated current. Voltages are controlled by selecting the appropriate voltage socket on the front panel. An analog current meter displays the current drawn by the load. Outputs are provided with overload and short circuit protection. Operates on 220V (±10%), 50/60Hz input.
To Holds 4D batteries. With metal contact strips between batteries so that 1.5, 3.0, 4.5 or 6.0 V may be selected without removing the batteries. Include one set of color coded connecting wires with insulated crocodile clips.