[Milsurplus] BC-221 with noisy tuning

[Mike Hanz]

NIST has this at http://www.nist.gov/pml/div688/grp40/wwv-history.cfm

"During the years in Beltsville, many interesting developments took 
place. A fire destroyed the station in November 1940, but the standard 
frequency equipment was salvaged and the station returned to the air 
just 5 days later using an adjacent building. An act of Congress in July 
1941 provided $230,000 for the construction of a new station, which was 
built 5 kilometers south of the former site and went on the air in 
January 1943. The 2.5 MHz broadcasts began in February 1944, and are 
still used as a convenient way to reach the population nearest the radio 
station. Transmission on 20, 25, 30, and 35 MHz began in December 1946."

On 6/11/2013 12:37 PM, John Hutchins wrote:
> WWV in opeation since 1922;
> http://en.wikipedia.org/wiki/WWV_%28radio_station%29
> At the end of 1922, WWV's purpose shifted to broadcasting standard 
> frequency signals....
> So It may have been used in WWII.... as a reference?
> Hutch
>
> On 6/11/2013 4:30 AM, C.Whitaker wrote:
>> de WB2CPN
>> WWV was there when I went into USAF communications
>> in early 1946.
>>
>> On 6/10/2013 4:41 PM, J. Forster wrote:
>>> I wonder whether there were on-air frequency standards, like WWV, 
>>> during
>>> WWII?  Anybody know off-hand?