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ID = 19258
Great Britain (UK)
Brand: Ferranti, GB
Tube type:  Mag. Stripe, exclamation mark   Indication 
Identical to 1M3 = DM70
Similar Tubes
Other base:

Base Subminiatur-8, with space 1/8, B8D
Filament Vf 1.4 Volts / If 0.025 Ampere / Direct / Battery =
Description Typ Va=85, Ia=0.17mA. Vg range 0 to -10V for full indication range.
Can also be operated at Va=250V in mains equipment with a Grid voltage range of 0 to -34. (Ferranti Literature) 
Tube prices 1 Tube prices (visible for members only)
Information source - - Manufacturers Literature   
  1M3: Internet
Miguel Angel Trujillo-Rodriguez
1M3: F.M.
Fabio Masetti

1M3: RTT Schwandt 14.Aufl.
Günther Stabe † 19.8.20

1M3: Manufacturer's Literature
Emilio Ciardiello

from Just Qvigstad

Usage in Models 1= 1952? ; 1= 1955?? ; 2= 1959?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):4

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