HP-21 Disassembly Help...
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03-30-2016, 04:00 PM
Post: #15
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RE: HP-21 Disassembly Help...
(03-30-2016 03:54 PM)PANAMATIK Wrote:(03-30-2016 05:12 AM)Geoff Quickfall Wrote: ..... I have installed a strong Brownian Motion producer (say a nice hot cup of tea) into the battery compartment which drives the LED display. This is the proof Geoff has also invented a time travel machine |
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