Thought to be made from a cattle femur, this decorated Anglo-Saxon spindle whorl, used to provide weight while spinning yarn, was unearthed from farmland near Bishopstone, Buckinghamshire.
So we should expect the device to contain a quartz resonant crystal plus the driver and compensation circuit, which are probably going to be combined into a single integrated circuit. One or both of these, or the connections between them, must have failed in some way since the TCXO isn’t working.
。新收录的资料对此有专业解读
Фото: U.S. Navy / Getty Images
Offline Ventures联合创始人Dave Morin
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