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EFP60

ETC
Part Number EFP60
Manufacturer ETC
Description Secondary Emission Amplifier
Published Aug 12, 2016
Detailed Description EFP60 - Secondary Emission Amplifier Almost certainly Philips EFP60 was the first high-frequency amplifier based upon th...
Datasheet PDF File EFP60 PDF File

EFP60
EFP60

Overview
EFP60 - Secondary Emission Amplifier Almost certainly Philips EFP60 was the first high-frequency amplifier based upon the secondary emission effect.
This article, dated August 1939, with the contribution of British Mullard on the Journal of Scientific Instruments allows to date the announcement of the tube just few days before WWII began in Europe.
It was probably intended for applications as VHF amplifier in then promising television field.
All the available resources were moved to military productions and both television and EFP60 had to wait until the end of the war.
In the meantime the secondary emission effect was exploited in America by RCA to design the giant acorn tubes, 1630 and its...


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