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SW45

SW45; Bush Radio; London (ID = 1612554) Radio
 
SW45; Bush Radio; London (ID = 1612555) Radio
 
SW45; Bush Radio; London (ID = 1612556) Radio
SW45; Bush Radio; London (ID = 562685) Radio SW45; Bush Radio; London (ID = 1611551) Radio
SW45; Bush Radio; London (ID = 1612248) Radio SW45; Bush Radio; London (ID = 1612247) Radio
SW45; Bush Radio; London (ID = 1611552) Radio SW45; Bush Radio; London (ID = 1611553) Radio
SW45; Bush Radio; London (ID = 1611555) Radio SW45; Bush Radio; London (ID = 1611558) Radio
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SW45; Bush Radio; London (ID = 562685) Radio
Bush Radio; London: SW45 [Radio] ID = 562685 358x300
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For model SW45, Bush Radio; London:
Courtesy of Adrian Pringle for Woking Hospice.
 
Country:  Great Britain (UK)
Manufacturer / Brand:  Bush Radio; London
Year: 1937 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 7: VP4B TH4A VP4B TDD4 TV4 PenB4 DW4/350
Main principle Superhet with RF-stage; ZF/IF 465 kHz; 2 AF stage(s)
Tuned circuits 7 AM circuit(s)
Wave bands Broadcast, Long Wave and Short Wave.
Details
Power type and voltage Alternating Current supply (AC) / 210; 230; 250 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 10 inch = 25.4 cm
Power out 8 W (unknown quality)
from Radiomuseum.org Model: SW45 - Bush Radio; London
Material Wooden case
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 21 x 15.5 x 11.7 inch / 533 x 394 x 297 mm
Notes

The Bush Teleflic is mechanical logging device with a rotary optical readout, letters and numbers with a full sweep of the numbers for each letter. It is driven from the tuning mechanism. It was intended to make it easier to retune to specific stations. It has no electronics other than back light and it is not a "bandspread" mechanism nor any effect on selectivity. It is on at least the SW45, BA53, BA53 Export, EBS4, BA63 and PB53 models. The  Teleflic lamp is only on when Shortwave is selected.

Two scale lamps/bulbs for each band (switched) and one for Teleflic (all 300mA each and seven in total).

Total 90W consumption.

At extreme clockwise the tone control switches the IF bandwidth for "higher fidelity".

"Reverse Vernier" / Slow motion action on tuning.

Wander plug 1/8" Sockets for  PU/Gram, Aerial, Earth and external speaker.

Wavebands / Switch function

  1. LW : 850 .. 2000 m
  2. MW : 198 .. 550m
  3. SW : 15.5 .. 51m
  4. Gram/PU

Loudspeaker is Rola F.7 600 with 1.8 Ohm speech coil, 600 Ohm DC field coil, 0.17 Ohm hum bucking coil and mounted transformer (Primary 3K AC Anode load, DC 250 ohms. Secondary DC 0.4 Ohms).

Net weight (2.2 lb = 1 kg) 16.5 kg / 36 lb 5.5 oz (36.344 lb)
Source of data - - Manufacturers Literature

Model page created by William J Blanchflower. See "Data change" for further contributors.



All listed radios etc. from Bush Radio; London
Here you find 343 models, 270 with images and 228 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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