Valve Factory Virtual Tour AWV Ashfield Sydney Australia
Spot Knocking

"Our cover this month shows a high-power transmitting valve undergoing a process known as 'spot-knocking' . 40,000 volts is applied to the valve to remove any protuberances on the grid wire which may later cause sparking in service"
Cover picture from Radiotronics volume 16 number 11, November 1951.
Valve Factory Virtual Tour AWV Ashfield
Acknowledgment: This web page contains text and images from Radiotronics volume 16 number 11, November 1951. 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.


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