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Posted by Christopher D. DiCicco on January 06, 19100 at 11:11:44:
Where might I find a 2.7v PX-14 or equivalent for a CdS electric eye in a GAF ST/802 super8 movie camera?
Posted by Doug Clifford on January 19, 2000 at 13:48:46:
In Reply to: 2.7v Mallory PX-14 mercury batteries posted by Christopher D. DiCicco on January 06, 19100 at 11:11:44:
Have been thinking about your problem. I wonder if two Varta #675 zinc-air batteries (each 1.4 volts) would be a suitable substitute to replace the 2.7 volt Mallory battery? I don't know whether the form factor (size) would be an obstacle or not, but the voltage would be very close. Also because zinc-air batteries require oxygen to work, the battery door would need a small hole drilled in it (if not already there.)
Take a look at this substitute for the 1.35 volt PX13 (aka
PX-25)
http://www.olympusguy.com/Lett.htm
Best regards,
Doug Clifford
Posted by David Foy on February 10, 2000 at 15:39:23:
In Reply to: Re: 2.7v Mallory PX-14 mercury batteries posted by Doug Clifford on January 06, 19100 at 13:32:00:
: : Where might I find a 2.7v PX-14 or equivalent for a CdS electric eye in a GAF ST/802 super8 movie camera?
: Production and sales of mercury batteries stopped in North America several years ago because of environmental concerns and the government threatening to ban mercury batteries. There have been a few solutions offered for the most common mercury battery used in cameras (the PX-13 - also known as the PX-625) but not for the other mercury battery sizes, including the PX-14. The Varta company in Germany was still making mercury batteries the last time I visited their web site, but a new visit this morning showed that all mercury photo batteries are gone.
: Unless you can locate your batteries overseas (from existing stocks) you are out of luck. Try countries like Australia. So far as I know, it's still not illegal to import the batteries for personal use.
It is legal to import and sell mercury batteries in Canada, and it is legal to import them into the US for personal use. There are several Internet-based Canadian sources. Varta was the last manufacturer and they have stopped making them, so stock up. The 1.35v mercury battery has a very flat discharge curve -- using 1.5v substitutes almost always gives wrong readings, and alkaline batteries lose charge over time in a steeper slope, so your readings are inconistent from the beginning to the end of the battery's life.
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