Morrow CM - 1 CONELRAD Radio Receiver Cold War Collectible
Item History & Price
| Reference Number: Avaluer:51295535 | Brand: Morrow |
Own a little piece of radio history!
I don't know if this is functional at all.The power cord is completely broken up and I did not bother replacing it as it may be original and about 70 years old.You will have to look at the pictures to determine if everything is present or missing.I carefully opened up to take pics, clean it a bit and make sure it was mostly intact.Mainly intended as a display piece or a project.
A little research (GOOGLE) dug up the information below. Than...ks to the experts out there who know about these things!I find it absolutely fascinating!
Back in the 1950's, when the cold war was big, national Civil Defense authorities were concerned that bombers from the evil empire might use transmissions from our radio stations to aid their navigation. So they devised CONELRAD, under which all radio stations could be ordered to shut down and limited official broadcasts would be transmitted on only two frequencies (640 and 1280 kHz) from remote transmitter locations which were switched frequently. This action would set off the alarm you had connected or turn off your radio via a relay.
Every FCC licensee, broadcast, ham, commercial two-way etc, was required to have a CONELRAD monitor receiver - which simply was tuned to a local broadcaster and sounded an alarm when that broadcaster went off the air. When they shut down, you were required to shut down too.
From Wikipedia"CONELRAD (Control of Electromagnetic Radiation) was a method of emergency broadcasting to the public of the United States in the event of enemy attack during the Cold War. It was intended to allow continuous broadcast of civil defense information to the public using radio stations, while rapidly switching the transmitter stations to make the broadcasts unsuitable for Soviet bombers that might attempt to home in on the signals (as was done during World War II, when German radio stations, based in or near cities, were used as beacons by pilots of bombers).U.S. President Harry S. Truman established CONELRAD in 1951. After the development of intercontinental ballistic missiles reduced the likelihood of a bomber attack, CONELRAD was replaced by the Emergency Broadcast System (EBS) on August 5, 1963, which was later replaced by the Emergency Alert System (EAS) on January 1, 1997; all have been administered by the Federal Communications Commission (FCC).[1]Unlike the EBS and EAS, CONELRAD was never intended to be used for local civil emergencies such as severe weather."
A guy actually set one up in it's original config on YOUTUBE.https://youtu.be/AqU4fB0O9Zo
I don't know if this is functional at all.The power cord is completely broken up and I did not bother replacing it as it may be original and about 70 years old.You will have to look at the pictures to determine if everything is present or missing.I carefully opened up to take pics, clean it a bit and make sure it was mostly intact.Mainly intended as a display piece or a project.
A little research (GOOGLE) dug up the information below. Than...ks to the experts out there who know about these things!I find it absolutely fascinating!
Back in the 1950's, when the cold war was big, national Civil Defense authorities were concerned that bombers from the evil empire might use transmissions from our radio stations to aid their navigation. So they devised CONELRAD, under which all radio stations could be ordered to shut down and limited official broadcasts would be transmitted on only two frequencies (640 and 1280 kHz) from remote transmitter locations which were switched frequently. This action would set off the alarm you had connected or turn off your radio via a relay.
Every FCC licensee, broadcast, ham, commercial two-way etc, was required to have a CONELRAD monitor receiver - which simply was tuned to a local broadcaster and sounded an alarm when that broadcaster went off the air. When they shut down, you were required to shut down too.
From Wikipedia"CONELRAD (Control of Electromagnetic Radiation) was a method of emergency broadcasting to the public of the United States in the event of enemy attack during the Cold War. It was intended to allow continuous broadcast of civil defense information to the public using radio stations, while rapidly switching the transmitter stations to make the broadcasts unsuitable for Soviet bombers that might attempt to home in on the signals (as was done during World War II, when German radio stations, based in or near cities, were used as beacons by pilots of bombers).U.S. President Harry S. Truman established CONELRAD in 1951. After the development of intercontinental ballistic missiles reduced the likelihood of a bomber attack, CONELRAD was replaced by the Emergency Broadcast System (EBS) on August 5, 1963, which was later replaced by the Emergency Alert System (EAS) on January 1, 1997; all have been administered by the Federal Communications Commission (FCC).[1]Unlike the EBS and EAS, CONELRAD was never intended to be used for local civil emergencies such as severe weather."
A guy actually set one up in it's original config on YOUTUBE.https://youtu.be/AqU4fB0O9Zo
