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Multi-Unit Model B

Multi-Unit Model B; Walker, George W. Co (ID = 381804) Radio
 
Multi-Unit Model B; Walker, George W. Co (ID = 382910) Radio
 
Multi-Unit Model B; Walker, George W. Co (ID = 382911) Radio
 
Multi-Unit Model B; Walker, George W. Co (ID = 382912) Radio
 
Multi-Unit Model B; Walker, George W. Co (ID = 382913) Radio
 
Multi-Unit Model B; Walker, George W. Co (ID = 382914) Radio
Multi-Unit Model B; Walker, George W. Co (ID = 2248929) Radio Multi-Unit Model B; Walker, George W. Co (ID = 2248930) Radio
Multi-Unit Model B; Walker, George W. Co (ID = 2248931) Radio Multi-Unit Model B; Walker, George W. Co (ID = 2248932) Radio
Multi-Unit Model B; Walker, George W. Co (ID = 381478) Radio
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Multi-Unit Model B; Walker, George W. Co (ID = 2248929) Radio
Walker, George W. Co: Multi-Unit Model B [Radio] ID = 2248929 1400x1866
Select picture or schematic to display from thumbnails on the right and click for download.
For model Multi-Unit Model B, Walker, George W. Co., Cleveland:
Grid leak replaced with 4.7M 1 watt carbon resistor. All other parts are original.
 
Country:  United States of America (USA)
Manufacturer / Brand:  Walker, George W. Co., Cleveland
Year: 1930 ? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 1: UX201A or X99 or 224 or 227
Main principle TRF with regeneration
Tuned circuits 1 AM circuit(s)     1 FM circuit(s)
Wave bands Broadcast and Short Wave (SW).
Details
Power type and voltage Storage and/or dry batteries
Loudspeaker - For headphones or amp.
Power out
from Radiomuseum.org Model: Multi-Unit Model B - Walker, George W. Co.,
Material Metal case, TUBES VISIBLE
Shape Miscellaneous shapes - described under notes.
Dimensions (WHD) 5 x 2.5 x 7.5 inch / 127 x 64 x 191 mm
Notes Wave range 15 to 550 meters. Can act as a short wave receiver, short wave adaptor, BC receiver, Screen grid pre-amp, RF booster, RF oscillator, crystal receiver, wave meter, or wave trap. Similar to original Geo W Walker Mult-Unit but has an extra variable capacitor, 5-pin coil socket and has a bronze colored mottled aluminium metal casing. Tube and coil are exposed on the top face of the casing. Also on upper face there is one vernier tuning dial, two small dials labeled VOL and ANT, 8 numbered terminals and a removable grid leak. On one of the side faces there is dial labeled Rheostat and a ground terminal.
Almost any UV or UX base standard tube may be employed, and even 5-prong (eg screen grid types) by use of an appropriate adapter.
Net weight (2.2 lb = 1 kg) 1 kg / 2 lb 3.2 oz (2.203 lb)
Price in first year of sale 16.00 $
Source of data -- Original prospect or advert

Model page created by Charles Baetsen. See "Data change" for further contributors.



All listed radios etc. from Walker, George W. Co., Cleveland
Here you find 4 models, 3 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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