21. It used the 2 " Quadruplex format, using two-inch ( 5.1 cm ) tape. 22. Including the quadruplex telegraph, the carbon microphone, phonograph, incandescent light bulb and system of electric lighting. 23. The equipment Pacific Video supplied included three RCA TK-44B cameras and RCA TR-70 Quadruplex recorders. 24. This method is used in Ampex's DCRsi instrumentation data recorders and the old Ampex quadruplex videotape system. 25. Type C videotape replaced 2-inch Quadruplex videotape on " Doctor Who " and many other shows. 26. The VR-8000 was made using a similar chassis used by Ampex's 2-inch quadruplex VTRs. 27. Their technique used 2 inch Quadruplex videotape to record the signals along with a clock signal from an atomic clock. 28. Not surprisingly, the failure of the Triplex concept meant that the Santa Fe quadruplex never made it off the drawing board. 29. The core of malachite green aptamer is also a kind of base quadruplex with a different hydrogen bonding pattern ( See Figure ). 30. In September 1877, with George Prescott, Thomas Edison signs an agreement with Stephen Field and Cornelius Herz regarding European quadruplex patents.
