Valve Factory Virtual Tour AWV Ashfield Sydney Australia
High temperature treatment and exhaust
Cover picture from Radiotronics Number 135, January-February 1949. Caption:
"Illustrating one stage during the exhausting of an Australian-made type 833-A radiotron transmitting valve. The electrodes are being heated to incandescence by passing radio frequency current through a coil which is placed around the valve.
It is joined by means of an exhaust tube to high vacuum pumps which remove gases driven off by the high temperature treatment. The operator is shown reading the electrode temperatures with an optical pyrometer"
Valve Factory Virtual Tour AWV Ashfield
Acknowledgment: This web page contains text and images from Radiotronics Number 122, November-December 1946. A Radiotron technical release published in Sydney, N.S.W., by Amalgamated Wireless Valve Company Pty. Ltd.
Last Update 04JAN2001. This webspace critter of Retrovox.Your comments and
contributions most welcome.
Retrovox/RMay1951/Valve Factory