Need advice on Lenongrad 6

[gb hill]

Hi all, I just received a Lenongrad 6 exp. meter in the mail I got off Ebay for 3 bucks. Just thought it would be a nice companion to my soviet comeras. Does anybody know what kind of battery this thing takes? All I know it's a button battery. And the voltage? I think I can find the din/asa numbers to crossover on line. Isn't it like 24=200asa or something like that? Well anyhow looking foward to your much wisdom on this subject to aid a ever learning poor ol soul like myself.



HAPPY THANKSGIVING!

Greg

 

[nzeeman]

according to commiecamera site it is 625A battery. it is 1.5 V i think. more info oon batteries http://www.photoethnography.com/ClassicCameras/index-frameset.html?batteries.html~mainFrame
21 din =100 asa , 24 din = 200asa, 27din=400asa etc

 

[gb hill]

Thanks alot for the information nzeeman. I've added to favorites the information you sent. So tomorrow i,m off to Radio Shack



Thanks,
Greg

 

[ZorkiKat]

Lenongrad-6? Is that a companion meter to the "new" Beatles album? sorry can't resist

The Leningrad meter circuit may have been designed to run on the power supplied by a mercury cell. Such would have a lower voltage (1.3 V) compared to the A(lkaline) 625 cell.

Also, alkaline cells don't put out power in the same way as mercury cells do.
Mercury cells put out a consistent voltage throughout its life. Alkalines don't and the power it puts out fluctuates. This may affect the meter's accuracy. Often meters made to run on mercury cells would only work properly for a day or maybe even a week on alkaline cells. When the A-cell starts to go, the accuracy of the meter goes with it.

Jay

 

[gb hill]

Thanks Zorki Cat. I wish we could get those mercury batteries over here. The meter in my ql-17 takes the same battery. I wonder how a lithium battery would react to the meter! Oh well! worth a try, and if it don't work I won't be out anything too much, and still have a nice piece of soviet gear to add to the collection.



Back in the USSR

Greg

 

[ZorkiKat]

Thanks Zorki Cat. I wish we could get those mercury batteries over here. The meter in my ql-17 takes the same battery. I wonder how a lithium battery would react to the meter! Oh well! worth a try, and if it don't work I won't be out anything too much, and still have a nice piece of soviet gear to add to the collection.



Back in the USSR

Greg

There are actually alternative cells and adaptors which can work. There are the 'air-cells' used for hearing aids. Silver cells put out a more stable power compared to alkalines.

Or get one of those adaptors which not only span the size differences between a current A-cell and the old mercury cell, but also 'bridge' the power differences. These adaptors have an internal circuit which will regulate the output of the A-cell to make it more compatible with the mercury-cell run circuit.

Jay