ginon_lee Posted September 20, 2002 Share Posted September 20, 2002 Everyone! If we have to replace PX27 with other expensive6V batteries why don't you consider tryingToshiba LR43 (6v). It fits right into your old Minox 35.(I think it's actually the same size)I bought 3 more here in korea for less than 1.5 Euro(@ $1.5US)!!Toshiba is a well known japanese brand and made in Japan Link to comment Share on other sites More sharing options...
MTC Photography Posted September 20, 2002 Share Posted September 20, 2002 Afaik, Duracell LR43 is an alkaline 1.5 v button cell<p>Alkaline cells are not suitable for Minox cameras<p> <a href="http://www.duracell.com/battery_finder/duracell_model_info.asp?duracell_model=LR43">LR43 </A> Link to comment Share on other sites More sharing options...
jeff_drew4 Posted September 20, 2002 Share Posted September 20, 2002 PX27 mercury battery is 5.6V nominal. Depending on the metering circuitry, the result can be 1/3 to 2 full stops different when using a 6V version. Link to comment Share on other sites More sharing options...
ginon_lee Posted September 22, 2002 Author Share Posted September 22, 2002 The exact type of the batt. is:Toshiba 4LR43 6V Even if we use the adapter kit it's 6V, isn't it? Link to comment Share on other sites More sharing options...
MTC Photography Posted September 23, 2002 Share Posted September 23, 2002 ginon 4LR43 is 4 LR43 alkaline cells stacked up together, 4x1.5 v= 6v However, the voltage all alkaline cell drops gradually, from 6v to 5.9 v, 5.8 v, 5.5v .... without you knowing it; so the exposure meterreading changes over time. Mercury cell/silver oxide cell has steady discharge curve, SPX27stays a 6 v, and then dies suddenly, as long as it works , it stays6v. Alkaline cells is not suitable for Minox cameras. Alkaline cells is cheaper You should look for 4SR43 6V battery, that is silver oxide Link to comment Share on other sites More sharing options...
edward_zimmermann Posted September 26, 2002 Share Posted September 26, 2002 Why are Alkaline cells ill-suited to Minox cameras? If they indeed have balanced circuits and the 6.2v of the standard 8x11 replacement (4x1.55v Ag cells) works the same as the 5.3v of the 4xMe cells that made the PX27 with its "normal" rating of 5.6v, then a drop from the 6v of an Alkaline cell should not make much matter. The chief issue, as I see it, is LESS the voltage but the discharge curve where an Alkaline can dip below the voltage where one might want these cameras to operate and the typically testing regime for these cameras (1/1000th second) won't work reliably. Given, however, the incredibly low cost of the Alkaline cells and their lower starting voltage I could imagine, with a good bit of discipline on testing and replacement of the cells (in perhaps more frequent intervals), that they are quite well suited, perhaps better... Link to comment Share on other sites More sharing options...
narayanachar_murali Posted December 2, 2002 Share Posted December 2, 2002 The camera has a zener diode.This usually stabilizes voltages over or below the specified voltage. Minix is squarely to blame. There is nothing on their official site about this issue. We need to scream in German! take four SR44 (1.5v ) batteries or two DL 1/3n Lithium (3v ) batteries or 4 SG13 batteries with the positive (+) of each battery facing the negative pole (group them in series). Tape them using a single layer of insulation tape and use the batteries. They should work. Lithium battheries offer the best discharge charectersistics and shouldbe the ideal choice for any photographic equipment. The extra 0.4 volts should not matter. The Zener diode will clip the voltage. The usenet groups should communicate with MINOX directly and have their official word abouth this ... Link to comment Share on other sites More sharing options...
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