Abstract: 70005 amplificateur hf
Text: PHILIPS EF97 PENTODE wlth variable mutual conductance for use as R.F. amplifier, I.F. amplifier and mixer ln carradlo sets. The tube can directly be operated from a 6 V or 12 ï storage battery PENTHODE à pente variable pour l'utilisation comme amplificatrlceH.F.,amplificatriceM.F. et comme tube mélangeur