Conversion for 3-volt battery in Polaroid 420greenspun.com : LUSENET : polaroid transfers : One Thread
Prior to my getting the 420, I saw a detailed explanation about how to convert the single, 3-volt battery setup into a pac using 2 AA batteries. Unfortunately, it now seems lost in cyberspace. Would appreciate any help.
-- J Tentor (firstname.lastname@example.org), February 26, 1999
You can use two 1.5V cells in series (alcalines recommended).
Even better is a 3.6 V Lithium battery with a silicon diode (like the 1N4148) in series. I have converted all my packfilm cameras like this.
More information is in Marty Kuhn's excellent Land List: http://soli.inav.net/~mkuhn/landlist/landbatt.htm
-- Georg Holderied (email@example.com), March 06, 1999.