Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 63697
Brand: Common type Japan tube/semicond.
Tube type:  Triode, vacuum   Power/Output 
Identical to 6R-A3

Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 6.3 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC

Constructed as tetrode with 2 grids. Grid # 2 is internally connected to the anode.

Pin allocation: 1 Anode + G2; 2 nc, 3 Anode, 4 nc, 5 & 6 Heizung, 7 nc, 8 G1, 9 K.

Text in other languages (may differ)

Just Qvigstad
Usage in Models 1= 1976

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of



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]