Changing the clock frequency slightly (PDP-11)?

[der Mouse]

>>> (26.667 MHz crystal oscillator)
>>> 25, 25.175 and 27 MHz units are available.
> The 27 MHZ unit is only 333 Hz off,

Um, 333 KHz.

> which is 0.00125%, if I have my decimal point correct.

1.25% (well, 1.248734+%) - 333Hz would be (approximately) 0.00125%, but
333KHz is 1000 times that.

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