A color photograph of part of the TWERLE balloon package, the stable oscillator. (No photo caption or identifying notes are present).
Photograph, stable oscillator
image
Balloons, sounding
Tropical meteorology
TWERLE Records
https://aspace.archives.ucar.edu/repositories/2/resources/21
Copyright University Corporation for Atmospheric Research (UCAR). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
http://n2t.net/ark:/85065/d72n50hx