National Select-O-Ject

Object/Artifact

-

Radio Alpha

Two images from the same issue of QST.: Image: QST, Feb 1950
Two images from the same issue of QST.

Image: QST, Feb 1950

Name/Title

National "Select-O-Ject"

Description

Audio Filter

Category

Other

Made/Created

Manufacturer

National Company

Date made

1949 - 1954

Other Name

"Select-O-Ject"

Valuations

Value

$24.95

General Notes

Note

QST, Jan 1950, inside back cover. QST, Feb 1950, inside back cover. QST, Feb 1950, p. 79. See National's Notes: QST, Feb 1950, p. 61. See National's Notes: QST, Jul 1950, p. 73. See National's Notes: QST, Nov 1950, p. 73. Allied Radio catalog 1951 (copyright 1950), p. 139. Allied Radio catalog 1952 (copyright 1951), p. 136. See National's Notes: QST, Jun 1953, p. 71. Walter Ashe catalog, 1954, p. 1. The attached PDF provides a schematic, and guidance on installation.