Using a signal generator HP 606A 15 mc, transmit a 1944 SX-28A built. The audio begins with the old radio (MP3) downloaded from the site of public domain files from the Internet. After playing in a laptop PC with Windows Media Player. The signal is sent to an RCA audio cable to an amplifier to drive the Yamaha generator modulation signal and finally to the antenna. You hear President Franklin Roosevelt addresses Congress Dec. 8, 1941 (approximately 4.5 minutes) before a cutto see popular shows WW2 Armed Forces Radio Service, "GI Jive." Enjoy the radio almost exactly as I had heard of this receptor with its wide range of PM-23 speakers.

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I connected an old DVD / CD on an old Yamaha R-V703 Surround Receiver, leading to a modulation signal generator 606a HP to 11 MHz with a telescopic antenna that had parts that receive the 11 MHz in Hallicrafters. The audio you hear is a October 7, 1943 broadcast of live radio armed forces Bing Crosby. All about Bing Crosby all Armed Forces Broadcast CD Laserlight Digital (No. 15934) consists of 5 CDs of the show to select the dates 1943-1945. You can hear exactlywhat appeared on the radio during WW2 through the chain of the SX-28 RF receiver to the audio output of speaker PM-23 (designed to coincide with the SX-28 in particular). The HP 606a is fixed to the external AC-modulation and the inverter is set at -30 dBm with necessary modifications, but is set to about 2 volts on the meter from the transmitter antenna 30 meters longwires reception (which is outside) is about 20-25 feet (~ 8 meters).

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