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28AK8

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ID = 19700
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Triple Diode-Triode   Text 
Identical to 28AK8 = UABC80
Similar Tubes
Normally replaceable-slightly different:
  10LD12 ; DH109 ; PABC80

Base Noval, 9 pin miniature (USA pico-9) B9A
Was used by Radio/TV-reception etc.
Filament Vf 28 Volts / If 0.1 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Description

this tube used as FM and AM signal detection and as AF signal amplification.

 
Dimensions (WHD)
incl. pins / tip
x 67 x 22 mm / x 2.64 x 0.87 inch
Tube prices 1 Tube prices (visible for members only)

28ak8.png
28AK8: Internet
Miguel Angel Trujillo-Rodriguez

no16_g_9.gif 28AK8: RTT Schwandt
Günther Stabe † 19.8.20


Just Qvigstad
Usage in Models 3= 1961

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3
 

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