Circle diagram constant air-gap induction motor images shown here, where, The circle diagram is drawn using the data obtained from no load and either short circuit or, in case of machines, blocked rotor tests by fitting a half-circle in points O and A. Beyond the error inherent in the constant air-gap assumption, the circle diagram introduces errors due to rotor reactance and rotor resistance variations caused by magnetic saturation and rotor frequency over the range from no-load to operating speed. Steinmetz equivalent circuit Circle diagram First conceived by A. Heyland in 1894 and B.A. Behrend in 1895, the circle diagram is the
A Letter to Elise the band's 4Tour World Tour 2007–08. A promo version of the song features yet another longer unreleased mix, with phaser on Robert Smith's voice. An instrumental version on cassette is also known to exist. "A Letter to Elise" itself was revived by the band's new Smith/Gallup/Thompson/Cooper lineup in 2005 after being played sparingly, if ever, during the Smith/Gallup/Bamonte/Cooper/O'Donnell era. Like "The Big Hand", it was not played very often, and was usually a pleasant surprise to fans when it popped up in setlists. "A Letter to Elise" has been covered by Aaron Sprinkle, for his "Really Something EP", Blink-182, for