Tube Valve Brand 6M7

Country:France
Brand: Common type France tube/semicond.
Tube type: Vacuum Pentode RF/IF-Stage Controlling (mu)
Identical to 6M7 = 6M7MG
First year 1940 Tube leaflet collection E.Erb Analysis by original leaflets
Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Octal) Top contact with a cap.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC
Description
According to the nomenclature, an octal tube 6M7 without a suffix as -G, -GT, etc.
would presume a metal version of this tube,
which apparently does not exist,
but there are metal-glass (MG) tubes stamped as 6M7,
see also under 6M7G and 6M7MG.

Tube testé au lampemètre de service Centrad modèle 751

(info internet)