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SN7420

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ID = 40343
       
Country:
Worldwide
Brand: Common type Worldwide tube/semicond.
Tube type:  IC - Integrated Circuit   Universal 
Identical to SN7420
Similar Tubes
Normally replaceable-slightly different:
  D120D
Other class quality (otherwise equal):
  SN7440 ; SN74LS20
Base SPECIAL TUBEBASE in general
Description

TTL: dual 4-input NAND gates, fan-out 10.
-

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip		 18 x 7 x 8 mm / 0.71 x 0.28 x 0.31 inch
Weight 1 g / 0.04 oz
sn7420_s.gif SN7420: Pro Electron 1975
Günther Stabe † 19.8.20
ersatz~~225.png
SN7420: Halbl. Frankf.
Egon Strampe
Usage in Models 1= 1967 ; 1= 1971 ; 1= 1974? ; 1= 1974 ; 2= 1975?? ; 1= 1975 ; 1= 1976?? ; 1= 1978 ; 1= 1984?
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):10

Collection of

Alois Wolf (D)
Rudolf Osterkamp (D)
Peter Pfeiffer (D)
Oskar Elm (D)
Karlheinz Fischer (D)
Jacky Parmentier (F)
 
sn7420_1.jpg

SN7420
 
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