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WRL UM-1 ; World Radio (ID = 2300395) Kit
WRL UM-1 ; World Radio (ID = 2300396) Kit
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WRL UM-1 ; World Radio (ID = 2300396) Kit
World Radio: WRL UM-1 [Kit] ID = 2300396 992x665
Select picture or schematic to display from thumbnails on the right and click for download.
For model WRL UM-1, World Radio Laboratories (WRL), (Globe Electronics); Council Bluffs, IA:
Bild aus dem Hersteller Manual zum UM-1
Country:  United States of America (USA)
Manufacturer / Brand:  World Radio Laboratories (WRL), (Globe Electronics); Council Bluffs, IA
Year: 1959 ? Category: Kit (Parts plus instruction) or building instructions only
Valves / Tubes 4: 6U8 6L6GB 6L6GB 5U4GB
Main principle Audio-Amplification
Power type and voltage Alternating Current supply (AC) / 115 Volt
Power out 45 W (unknown quality)
from Model: WRL UM-1 - World Radio Laboratories WRL,
Material Metal case, TUBES VISIBLE
Shape Tablemodel, Mantel/Midget/Compact up to 14" width, but not a Portable (See power data. Sometimes with handle but for mains only).
Dimensions (WHD) 11 x 6 x 7 inch / 279 x 152 x 178 mm

45W universal modulator (kit) for amplitude modulation transmitters (up to 100W plate input). Max power 45W in class AB2 service. Output impedance 500 to 20000 Ohms. Frequency response 800 to 3500 Hz +/- 1.5 dB. Accepts  carbon, crystal or high impedance dynamic microphones. Can be used as an audio amplifier for public address systems.

Net weight (2.2 lb = 1 kg) 15.5 lb (15 lb 8 oz) / 7.037 kg
Mentioned in - - Manufacturers Literature

Model page created by Götz Linss. See "Data change" for further contributors.

All listed radios etc. from World Radio Laboratories (WRL), (Globe Electronics); Council Bluffs, IA
Here you find 26 models, 23 with images and 17 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.