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MR-52 Adapter - Exact Voltage Converter

Type: Physical adapter with exact voltage Zinc-Air cell kit

Contents: Kit contains 1 x MR-52 Adapter, 1 x MR675 1.35 volt zinc-air cell. Output Voltage: 1.35 V.

Diameter: 16 mm. Height: 11.2 mm. (including zinc-air cell)

Price: 19.50 each. Postage and packing included.

Emulates: PX640 / EPX640 / V640PX / H-N / E640N / MR52 / NR52 / 1126MP / NR52 / RPX640 / HM-N / HD640 / H-N.

1.35V replacement for: PX640A / A640PX / EN640A / EPX640A / PC640A / LR52 / 1126A.

The "Rolls Royce" solution to problem of the discontinued Mercuric Oxide MR52 and PX640. Our MR-52 Adapter has the outer dimensions of the PX640  mercury cell with a recess that takes the readily obtained exact voltage 1.35V MR675 cell. The MR-675 Zinc Air cell produces the exact and steady 1.35 volts that are needed, whilst the MR-52 Adapter fills out the cell to the dimensions your  camera was designed for.

No adjustment or modification to your camera is required. The included MR-675 cell does require activation and a supply of air.

MR-52 Adapters are a one time purchase, and will last a lifetime. The MR675 zinc-air cell will typically last nine months and often up to a year. At the end of its life, simply replace the expired exact voltage 1.35V MR675 cell with a fresh one.

Click here to purchase further exact voltage 1.35V MR675 cells. and to find out more about the MR675 and its characteristics.



There are other possible non-mercury replacement for a PX640 or MR52 cell:

An inexpensive PX640 replacement is the alkaline cell, the PC640A, LR52 or A640PX. They fit perfectly but, as with all alkaline cells the voltage is not stable, it drifts down from 1.5V towards 1.35V (the voltage of the original Mercury cell) and then lower still. If you use the cell in a camera that needs a steady reference voltage, as the voltage is not steady throughout the useful life of the cells,  you need to constantly adjust how you compensate.

An elegant but expensive PX640 replacement involves the combination of the physical adapter above and an MR-44 Adapter - Voltage Reducing Converter. Frightfully expensive but very very neat. Find out more here......

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