Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 22117
Brand: Deutsche Glimmlampen GmbH, (DGL), Otto Pressler; Leipzig
Tube type:  Voltage Regulator, single 
Identical to GR28-40
Similar Tubes
Normally replaceable-slightly different:

Base Miniatur-7-Pin-Base B7G, USA 1940
Filament --/--
Description 1 Glimmstrecke, max. Zündspannung 140 V, Brennspannung 100...105 V, I ca. 5 ... 60 mA, Ri ca. 100 Ohm. 
Dimensions (WHD)
incl. pins / tip
18 x 57 x mm / 0.71 x 2.24 x inch
Weight 8 g / 0.28 oz
Information source Röhren-Taschen-Tabelle, (Franzis RTT)   

mi58_g_8.gif GR28-40: RTT Schwandt
Günther Stabe † 19.8.20

Just Qvigstad
Usage in Models 1= 1962? ; 1= 1969?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):2

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]

Data Compliance More Information