Triplett 1690, 1691

Object/Artifact

-

Radio Alpha

The tube could be rotated for best viewing angle. Image: Srevice magazine, Jan 1938

The tube could be rotated for best viewing angle. Image: Srevice magazine, Jan 1938

Name/Title

Triplett 1690, 1691

Description

2 and 3” Oscilloscopes

Category

Scope

Made/Created

Manufacturer

Triplett

Date made

1937 - 1938

Valuations

Notes

See text

General Notes

Note

Service magazine, Nov 1937, p. 665. Service magazine, Jan 1938, p. 37. (a few details) Radio's Master Encyclopedia, copyright 1937, second edition, p. F-1. Radio Craft, Apr 1938, p. 707. Radio News, May 1938, p. 67. Linear from 15 Hz–20 kHz. 1690, 2 inch, $47.00 1691, 3 inch, $62.50 References Brief description. Radio News, Sep 1937, p. 186. Brief description. Service magazine, Feb 1938, p. 32.