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SY-222

Information - Hilfe 
ID = 86691
       
Land:
USA
Marke: Sylvania (Hygrade, GTE, Nilco); Emporium (PA)
Entwickler: Sylvania (Hygrade, GTE, Nilco); Emporium (PA) 
Typ:  Schirmgitter-Tetrode   Niederfrequenz 
Identisch mit SY-222
Ähnliche
Sockel anders, elektr. Daten leicht and:
  SP122
Nachfolger 1929   UY224  

Sockel USA-UY-5-Stift-Sockel, ab 1927 Obenanschluss-Kappe.
Anwender Radio/TV-Empfang etc.
Heizung Uf 2.5 Volt / If 1.75 Ampere / Indirekt
Beschreibung

The 222 (AC) was marketed by several manufacturers, mainly Sylvania. It was a combination of the UX222 and UY227. It had a relatively short commercial life and was rplaced by the UY224.

 
Abmessungen (BHT)
inkl. Stifte/Spitzli
x 123 x 45 mm / x 4.84 x 1.77 inch
Gewicht 48 g / 1.69 oz
Literatur -- Collector info (Sammler)   
Tube Lore (II)   p. 26

y222.png SY-222: Fin Stewart
Fin Stewart


Just Qvigstad
 
sylvania_sy_222_bm.jpg

 

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