National NC-57

Welcome to the Vintage Radio Gear site and the National NC 57 resource page. This site is designed to help you quickly and easily find the latest National NC 57 manuals, National NC 57 books, National NC 57 parts and accessories and National NC 57 radios for sale.

The National NC 57 information on this site is updated hourly, so if you are interested in the National NC 57, bookmark this site so you can visit often.

The National Radio Company, headquartered in Malden, Massachusetts, USA was incorporated, in 1914, as the "National Toy Company". Their expansion into home appliances led to the name change to the "National Company, Inc." The company moved in to the large scale manufacture of capacitors in the mid 1920s. It was at this time that two engineers, Fred H. Drake and Glen Browning, approached National to manufacture components to their specifications for a radio receiver of their own design. This led to the production and sale of the "National Regenaformer" kit for home construction. The set was capable of tuning the standard AM broadcast band only and could not receive shortwave. By the early 1930s National became well established with the amateur radio community based upon their line of regenerative receivers, including the SW-3 and SW-5.

The top-of-the-line HRO receiver was introduced in 1935. This radio included two RF amplifier stages and a crystal filter. The distinctive dial allowed KC (kHz) resetability and was a National trademark into the 1960s. This same basic design survived for over 20 years.

In 1939, National became a key supplier to the US and Allied governments when war broke out in Europe. The military ordered large numbers of receivers, particularly HRO's. When the United States entered the war some two years later, the word was, "Start building HROs; we'll tell you when to stop." Their number of employees went from approximately 200 to about 2500 during the war.

In the 1950s and 60s, National produced a wide range of amateur radio equipment. In 1965, National introduced the solid state HRO 500, which did not incorporate the famed HRO dial system, but instead featured a direct readout.

Into the 1980s, National survived as a government contractor and ceased development and production of civilian equipment. However, by 1991, amid continuing difficulties, the company ceased operation.

More information on National Radio Company:
Wikipedia reference on National Radio Company

National NC-57 EBay Bargains!

VINTAGE NATIONAL NC-57 SHORTWAVE HAM RADIO RECEIVE
VINTAGE NATIONAL NC-57 SHORTWAVE HAM RADIO RECEIVE
Ends in 2 Days 13 Hours 18 Minutes 38 Seconds
Current price: $49.99 (0 bids)
National NC-57 manual »R²
National NC-57 manual »R²
Ends in 6 Days 8 Hours 2 Minutes 17 Seconds
Current price: $12.95 (0 bids)
National NC-57B manual w/foldout schematic »R²
National NC-57B manual w/foldout schematic »R²
Ends in 6 Days 8 Hours 2 Minutes 19 Seconds
Current price: $12.95 (1 bid)
ORIGINAL NATIONAL NC-57 RADIO RECEIVER FACTORY INS
ORIGINAL NATIONAL NC-57 RADIO RECEIVER FACTORY INS
Ends in 9 Days 11 Hours 32 Minutes 36 Seconds
Current price: $16.50 (0 bids)
National NC-57B Ham Shortwave Radio Receiver $49.9
National NC-57B Ham Shortwave Radio Receiver $49.9
Ends in 16 Days 11 Hours 29 Seconds
Current price: $49.99 (0 bids)
National NC-57 NC57 Radio Receiver Manual
National NC-57 NC57 Radio Receiver Manual
Ends in 18 Days 10 Hours 20 Minutes 51 Seconds
Current price: $10.49 (2 bids)
National NC-57M NC57M Manual
National NC-57M NC57M Manual
Ends in 18 Days 10 Hours 20 Minutes 52 Seconds
Current price: $8.99 (2 bids)
National NC-57 Radio Receiver Manual
National NC-57 Radio Receiver Manual
Ends in 21 Days 1 Hours 13 Minutes 25 Seconds
Current price: $8.95 (17 bids)
Vintage National NC-57b Ham Radio Receiver
Vintage National NC-57b Ham Radio Receiver
Ends in 21 Days 5 Hours 4 Minutes 42 Seconds
Current price: $100.00 (0 bids)
National NC-57B NC57B  Manual
National NC-57B NC57B Manual
Ends in 22 Days 1 Hours 21 Minutes 53 Seconds
Current price: $8.99 (5 bids)

Sponsored Links


Custom Search