https://en.wikibooks.org/wiki/History_of_wireless_telegraphy_and_broadcasting_in_Australia/Topical/Columns/Wireless_News_NSW/Notes
in all parts of the world are constantly coming to hand. Vessels engaged in the trans-Pacific trade consistently communicate with American coast stations
https://en.wikibooks.org/wiki/History_of_wireless_telegraphy_and_broadcasting_in_Australia/Topical/Publications/Wireless_Weekly/Issues/1923_01_05
W. Transmitters Valve Receivers Crystal Receivers Loose Couplers Valves QX Myers Expanse B. Radiohorn, 200, 201, 202. SMALL SHIPMENT—. MURDOCH PHONES
https://en.wikibooks.org/wiki/History_of_wireless_telegraphy_and_broadcasting_in_Australia/Topical/Publications/Wireless_Weekly/Issues/1924_10_03
and Amplifier Valv< 18/6; dry cell type, 28/6. Marconi R., 19/-; D. 37/6; Q.X., 42/6; D. 5, 22/-; D. 6, 50/-. Ediswa A.R., 20/-. Radiotron, U.V. 200, 30/-
https://en.wikibooks.org/wiki/History_of_wireless_telegraphy_and_broadcasting_in_Australia/Topical/Biographies/Albert_Edward_Grey/Notes
obtained. The receiver comprises the well-known Reinartz circuit, with a Marconi QX valve as a rectifier. Photographs of the station will appear in a subsequent
https://en.wikibooks.org/wiki/High_School_Mathematics_Extensions/Print_version
integer y {\displaystyle y} , then we can write y = q x {\displaystyle y=qx} , for some non-zero integer q {\displaystyle q} . So let's say that b = q