Philips EF22 Pentode with variable mutual conductance
Pentode à pente variable
Pentode mit veränderlicher Steilheit
Designed for use as H.F., I.F. and L.F. amplifier.
Fiche technique • Data sheet • Datenblatt:
EF22.pdf &
EF22.pdf &
EF22.pdf
Thanks to Jacques Henrion (F4EPV) who donated this tube.
![Philips EF22 Pentode with variable mutual conductance](rt215a.jpg)
Hauteur • Height • Höhe : 75 mm • 3"
Diamètre • Diameter • Durchmesser : 27 mm • 1" 1/16
![Philips EF22 Pentode with variable mutual conductance](rt215b.jpg)
![Philips EF22 Pentode with variable mutual conductance](rt215c.jpg)
Le contenu de ce site est sous copyleft
The content of this site is under copyleft
Der Inhalt dieser Website steht unter Copyleft