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HCH81

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ID = 4048
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Tube type:  Triode-Heptode   Frequency converter   Controlling (mu) 
Identical to HCH81 = 12E4 = 12D8 = 12AJ8 = 12AJ7
Similar Tubes
Heater different:
  ECH81 ; UCH81
First year 1952 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Aug.1952 : Funkschau # 16
Base Noval, 9 pin miniature (USA pico-9) B9A
Was used by Radio/TV-reception etc.
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Specified voltage AND current AC/DC
Tube prices 1 Tube prices (visible for members only)
hch81.png
HCH81: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
uch81_so~~4.png HCH81: rtt
Anonymous 10 Collector

Just Qvigstad 		hch81_data.png
HCH81: Lorenz Preisliste 1952
Anonymous 15 Collector
More ...
Usage in Models 1= 1950 ; 6= 1952?? ; 4= 1953?? ; 2= 1953? ; 2= 1954?? ; 5= 1954? ; 9= 1955?? ; 4= 1955? ; 2= 1955 ; 3= 1956?? ; 2= 1956? ; 11= 1956 ; 6= 1957?? ; 6= 1957 ; 7= 1958?? ; 22= 1958 ; 2= 1959? ; 13= 1959 ; 8= 1960?? ; 1= 1960? ; 13= 1960 ; 1= 1961? ; 6= 1961 ; 2= 1962?? ; 1= 1962? ; 2= 1963? ; 2= 1963 ; 4= 1965?? ; 1= 1965? ; 1= 1966
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):149

Collection of

Miguel Angel Irissarry Garcia (E)
Jose Luis Campayo-Soriano (E)
 
hch81.jpg

HCH81
 
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