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Information - Help 
ID = 18489
Brand: Common type France tube/semicond.
Tube type:  Vacuum Pentode   Power/Output 
Identical to 6BM5 = 6P9
Similar Tubes
Heater different:
First year 1954 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
30.Jun.1952 : Electron Tube Registration List
Predecessor Tubes 6M6GT   6M6G  

Base Miniatur-7-Pin-Base B7G, USA 1940
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.45 Ampere / Indirect / Parallel, (AC/DC)

Note: The 6BM5 must never be replaced by a 6AQ5, even if both they look much alike !

Data of the 6BM5:
Vp = Vg2 = 250 V
Ip = 30 ma
Ig2 = 3 mA
Vg1 = -6 V
S = 7 mA/V
Ri = 60 k
Z = 7 k
P-out = 3,5 W
Rc = 180 Ohms

Text in other languages (may differ)
Tube prices 1 Tube prices (visible for members only)
6BM5: Collection JR
Jacob Roschy

6BM5: ARRL Handbook 1972
Michael Schlör


from Just Qvigstad

Usage in Models 1= 1953 ; 5= 1954?? ; 4= 1954? ; 9= 1954 ; 5= 1955?? ; 4= 1955 ; 2= 1956? ; 3= 1956 ; 2= 1957? ; 3= 1957

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):38

Forum contributions about this tube
Threads: 1 | Posts: 2
Hits: 2475     Replies: 1
6BM5: Fertigungsdatum unklar
Georg Richter

Können bitte die Röhrenspezialisten nachsehen ob diese Röhre erst 1954 gebaut wurde obwohl sie schon am 30.Jun.1952 in der "Electron Tube Registration List" genannt wird?

Besten Dank und Gruss,


Jacob Roschy

Hallo Georg,

der Eintrag in der "Electron Tube Registration List" stimmt (immer noch). Bemerkenswert ist, dass diese Röhre nur auf dem französischen Markt auftritt, darunter 2 Geräte mit Fertigungsjahr 1953.

Grüße, Jacob

End of forum contributions about this tube

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