Country:USA (United States of America) Manufacturer: Common type USA tube/semicond. Type: Pentagrid converter (Heptode) Frequency converter Control (mu) Identical to 2A7 = Ut-2A7 = ER2A7 = CV787 = PH2A7 = Ut2A7 = NU-2A7 Similar valves Other shape (e.g. bulb type): 2A7S ; G-2A7-S Other class quality (otherwise equal): NU-2A7S Heater different: 6A7 First series 1933 Radios von gestern, 2. Auflage page 231 (Base for 2A7 and 6D7)started >200 models First information Apr.1933: 70 Years of Radiotubes and V. Mar.1933 : The AWA Journal Vol. 7, 1992 Evolutions 6A8 6A8G
2A7 Valve
€29.00
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Country:USA (United States of America) Manufacturer: Common type USA tube/semicond. Type: Pentagrid converter (Heptode) Frequency converter Control (mu) Identical to 2A7 = Ut-2A7 = ER2A7 = CV787 = PH2A7 = Ut2A7 = NU-2A7 Similar valves Other shape (e.g. bulb type): 2A7S ; G-2A7-S Other class quality (otherwise equal): NU-2A7S Heater different: 6A7 First series 1933 Radios von gestern, 2. Auflage page 231 (Base for 2A7 and 6D7)started >200 models First information Apr.1933: 70 Years of Radiotubes and V. Mar.1933 : The AWA Journal Vol. 7, 1992 Evolutions 6A8 6A8G
Valve 2A7 Socket 7-Pin-Base U7A = small, old, USA (Codex=Mh) Top contact with a cap. Used for Radio/TV-reception etc. Filament Vf 2.5 Volt / If 0.8 Ampere / Indirect / Specified voltage AC/DC Dimensions (WxHxD) incl. pins/tip x 116 x 38 mm / x 4.57 x 1.50 inch Weight 39 g / 1.38 oz Quotations 2 Quotations (visible only for associated) Bibliography Essential Characteristics, GE 1973 Taschenbuch zum Röhren-Codex 1948/49 Original photos
Valvola 2A7
2 Items
Data sheet
- Condition
- NOS