On Sat, Mar 1, 2025 at 10:04 AM, Dan Kahn wrote:
All the lanterns I saw in that time period had the big 6 V battery with square cross-section and rounded corners, significant height (maybe 1.5 times as tall as they were across), and springs on the top for contacts.? As of a few years ago, you could still purchase them.
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Andy
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There were 4 "F" cells inside the lantern battery case. You can still buy them (at least as of 2023) but almost all had 4 "D" cells with a spacer at the bottom. I used the lantern batteries with screw terminals for all sorts of experiments as a kid. The only thing better was the big "ignition" cells used in school science classes. My dad bought me a dozen and they powered my early transistor experiments for 5 or 6 years, until my uncle built an adjustable regulated AC mains powered power supply for me.
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