div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: On the Circle-of-Fifths Rotor - Siemen Terpstra · The circle-of-fifths rotor design is a direct evolution from the geometrical model However this evolution did not come about until src=https:reader030fdocumentsusreader030viewer20220216125b95473609d3f27f5b8c89fbhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divpOn thep pCircle-of-Fifthsp pRotorp pSiemen Terpstrawwwsiementerpstracompdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: On the Circle-of-Fifths Rotor - Siemen Terpstra · The circle-of-fifths rotor design is a direct evolution from the geometrical model However this evolution did not come about until src=https:reader030fdocumentsusreader030viewer20220216125b95473609d3f27f5b8c89fbhtml5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: On the Circle-of-Fifths Rotor - Siemen Terpstra · The circle-of-fifths rotor design is a direct evolution from the geometrical model However this evolution did not come about until src=https:reader030fdocumentsusreader030viewer20220216125b95473609d3f27f5b8c89fbhtml5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 4button div class=trans-image amp-img class=trans-thumb alt=Page 4: On the Circle-of-Fifths Rotor - Siemen Terpstra · The circle-of-fifths rotor design is a direct evolution from the geometrical model However this evolution did not come about until src=https:reader030fdocumentsusreader030viewer20220216125b95473609d3f27f5b8c89fbhtml5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 5button div class=trans-image amp-img class=trans-thumb alt=Page 5: On the Circle-of-Fifths Rotor - Siemen Terpstra · The circle-of-fifths rotor design is...