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| Curiously the battery case has two slots (for two AAA batteries) but only one has battery contacts, the other being blank. The main board was probably used in a different calculator that demanded a higher 3 VDC voltage. | |
| Total images: 12 | Help | |
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| Curiously the battery case has two slots (for two AAA batteries) but only one has battery contacts, the other being blank. The main board was probably used in a different calculator that demanded a higher 3 VDC voltage. | |
| Total images: 12 | Help | |