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Detector and One Stage Amplifier SP-3

Detector and One Stage Amplifier SP-3; DeForest Radio (ID = 2330930) mod-pre26 Detector and One Stage Amplifier SP-3; DeForest Radio (ID = 2330929) mod-pre26
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Detector and One Stage Amplifier SP-3; DeForest Radio (ID = 2330930) mod-pre26
DeForest Radio: Detector and One Stage Amplifier SP-3 [mod-pre26] ID = 2330930 946x1188
Select picture or schematic to display from thumbnails on the right and click for download.
For model Detector and One Stage Amplifier SP-3, DeForest Radio Telephone & Telegraph Co. (De Forest); New York:
Deforest SP-3 Sold by Ebay Seller:brettsnicefinds Ebay Item:372511596746 on 4 Dec 2018
 
Country:  United States of America (USA)
Manufacturer / Brand:  DeForest Radio Telephone & Telegraph Co. (De Forest); New York
alternative name
 
Lee De Forest Mfg.
Year: 1921 Category: Radio module pre 1926 (not a part, not a key)
Valves / Tubes 2: UV200 UV201
Main principle Detector with Vacuum Tube (Valve), no tuner; 1 AF stage(s)
Wave bands - without
Details
Power type and voltage Storage and/or dry batteries
Loudspeaker - This model requires external speaker(s).
Power out
from Radiomuseum.org Model: Detector and One Stage Amplifier SP-3 - DeForest Radio Telephone &
Material Wooden case
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Dimensions (WHD) 6.5 x 7.4 x 0 inch / 165 x 188 x 0 mm
Notes The De Forest Type SP-3 vacuum tube detector cabinet with one-stage audio amplifier.
Net weight (2.2 lb = 1 kg) 7 lb (7 lb 0 oz) / 3.178 kg
Collectors' prices  
Literature/Schematics (1) Deforest Radio Equipment Catalog H page 8

Model page created by Alan Larsen. See "Data change" for further contributors.



All listed radios etc. from DeForest Radio Telephone & Telegraph Co. (De Forest); New York
Here you find 141 models, 111 with images and 10 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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