It contains everything necessary, including an absorption wavemeter for independently measuring frequency . ]]
2.
It provided radio components such as a Precision Variable Air Condenser ( $ 25.00 ), a Decade Resistance Box ( $ 19.00 ), a Precision Variable Inductance ( $ 24.00 ), and an Absorption Wavemeter ( $ 60.00 ), and quickly profited from strong demand for military radios during World War I and the subsequent radio broadcasting boom.
मोबाइल