Difference between revisions of "Rev counter"
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(New page: The rev counter receives pulses from the ignition pack. These appear to be standard TTL levels (0-5V) with a duty cycle of ~5% and a frequency of twice the engine speed e.g. 25ms period at...) |
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The rev counter receives pulses from the ignition pack. These appear to be standard TTL levels (0-5V) with a duty cycle of ~5% and a frequency of twice the engine speed e.g. 25ms period at 1200RPM. There is a small amount of overshoot and ringing, but nothing excessive. | The rev counter receives pulses from the ignition pack. These appear to be standard TTL levels (0-5V) with a duty cycle of ~5% and a frequency of twice the engine speed e.g. 25ms period at 1200RPM. There is a small amount of overshoot and ringing, but nothing excessive. | ||
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Latest revision as of 18:56, 10 May 2008
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The rev counter receives pulses from the ignition pack. These appear to be standard TTL levels (0-5V) with a duty cycle of ~5% and a frequency of twice the engine speed e.g. 25ms period at 1200RPM. There is a small amount of overshoot and ringing, but nothing excessive.
