National HRO-500, HRO-500P

Object/Artifact

-

Radio Alpha

Image: QST, Oct 1964

Image: QST, Oct 1964

Name/Title

National HRO-500, HRO-500P

Description

General Coverage plus VLF Receiver

Category

Receiver, General Coverage, VLF

Made/Created

Manufacturer

National Company

Date made

1964 - 1969

Notes

See text about a 1977 comeback

General Notes

Note

Announced QST, Aug 1964, p. 107. Will be shown at Wescon in LA. QST, Oct 1964, inside back cover. QST, Feb 1965, p. 105. QST, Apr 1965 p. 129. QST, Feb 1966, back cover. CQ, Jun 1968, p. 121. QST, May 1969, p. 127. See National's notes: QST, Oct 1964, p. 111. See National's notes: QST, Nov 1964, p. 87. See National's notes: QST, Dec 1964, p. 115. See National's notes: QST, Feb 1965, p. 93. See National's notes: QST, Apr 1965, p. 109. See National's notes: QST, Jun 1965, p. 119. See National's notes: QST, Sep 1965, p. 113. See National's notes: QST, Jan 1966, p. 99. See National's notes: QST, May 1966, p. 105. See National's notes: QST, Aug 1966, p. 97. "P" version is portable. See National's notes: QST, Aug 1966, p. 97. Hamtronics ad: "National is back." First seen QST, Nov 1976, p. 131. QST, Jan 1977, p. 147. The HRO-500 makes a comeback? Along with NCX-1000 and NCL-2000. The ads ran until May 1977. References Brief description. Popular Electronics, Jan 1965, p. 26. Brief description. Electronics World, Feb 1965, p. 94. Review. Popular Electronics, Aug 1965 p .45.