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Patrick Heslop, Canada - Tube collection

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ID = 18430
Photo Patrick Heslop

Below you find a part of the tube collection Patrick Heslop.

love 1920-1940
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Excerpt from the tube collection of Patrick Heslop. These images (tube photos) were uploaded to the respective tubes or valves by Patrick Heslop.

arcturus ac 40

maximum ratings                   typical operation as an an

                                   plate    180  v
                                   plate    21   ma
                                   grid    -40.5 ma
plate       180  v                 amplification factor  3
plate       21  ma                 transconductance 1500 um
grid        -40.5
filiment    15.0  v
filiment    380  ma
AC-40 1928
Arcturus Radio Tube Co.; New... USA

Tube collector page of valve collector Patrick Heslop as «own HP at RMorg»
As a member of Patrick Heslop displays items in his/her tube collection. Tubes are called valves in British oriented countries.
Valve and tube collectors as well as radio collectors are invited to join Every member can display separate collections of tubes, radios etc.

Patrick Heslop started his/her tube collection (valve collection) here on 30.Nov.2015. [index-en]