Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 8300
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to UU7

Base Octal-8 GB, (Mazda), K8B, MO (Codex=Vm)
Filament Vf 4 Volts / If 2.3 Ampere / Half indirect /
Description Before 1951 the UU7 was manufactured with metallising on the bulbs connected to pin 6. 
Dimensions (WHD)
incl. pins / tip
45 x 100 x mm / 1.77 x 3.94 x inch
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   

UU7: Own collection.
Stuart Irwin

UU7: Telefunken Werkstattbuch
Wolfgang Bauer


Usage in Models 1= 1939 ; 1= 1947? ; 2= 1948 ; 1= 1949

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):5

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]