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ID = 22116
Tube type:  Voltage Regulator, single 
Identical to GR28-30

Base Miniatur-7-Pin-Base B7G, USA 1940
Description 1 Glimmstrecke, max. Zündspannung 210 V, Brennspannung 105...110 V, I ca. 5 ... 60 mA, Ri ca. 150 Ohm. 
Information source Röhren-Taschen-Tabelle, (Franzis RTT)   
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mi58_g_7.gif GR28-30: RTT Schwandt
Günther Stabe † 19.8.20

Just Qvigstad
Usage in Models 1= 1968??

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

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