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July 29th 10, 07:51 PM
posted to rec.radio.amateur.boatanchors
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Odd resistors identification
Some of the schematic diagrams of war times radios - though not all of them -
adopt an odd way of identifying resistance values. For instance a 200.000 ohm resistor is marked "200 Mohm". The "M" means kilo, not mega! Conversely a 2.000.000 ohm resistor is marked "2 Megaohm". Does any one know the origin of this way of marking resistors and when it was abandoned? 73 Tony I0JX Rome. Italy |
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