You wrote<<BTW the 510 volt batery is a plain carbon zinc a relic from the days of tube based portable radios. These need to be kept refrigerated to preserve their capacity. I used to use these with an old Honeywell Strobonar, but they beacame increasingly difficult to find and expensive to buy.>>
You are right about the last part. Still available from Sunpak, no longer as a Pentax item, even from Japan. Incidentally, the 510v battery pack appears identical to the Sunpak item. When you say "carbon zinc" I always thought these were "gel-cell" ie similar to the cell in a Quantum. Kind regards Peter - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
