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BX495U

BX495U; Philips; Eindhoven (ID = 679011) Radio BX495U; Philips; Eindhoven (ID = 679012) Radio
BX495U; Philips; Eindhoven (ID = 679013) Radio BX495U; Philips; Eindhoven (ID = 1468964) Radio
BX495U; Philips; Eindhoven (ID = 1468965) Radio BX495U; Philips; Eindhoven (ID = 1468966) Radio
BX495U; Philips; Eindhoven (ID = 1468968) Radio BX495U; Philips; Eindhoven (ID = 1468969) Radio
BX495U; Philips; Eindhoven (ID = 1468970) Radio BX495U; Philips; Eindhoven (ID = 1468972) Radio
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BX495U; Philips; Eindhoven (ID = 679011) Radio
Philips; Eindhoven: BX495U [Radio] ID = 679011 640x480
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For model BX495U, Philips; Eindhoven (tubes international!); Miniwatt
 
Country:  Netherlands
Manufacturer / Brand:  Philips; Eindhoven (tubes international!); Miniwatt
Year: 1949 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 6: UCH21 UAF42 UAF42 UBL21 UM4 UY41
schematic requested
Main principle Super-Heterodyne (Super in general); ZF/IF 452 kHz
Wave bands Broadcast plus more than 2 Short Wave bands.
Details
Power type and voltage AC/DC-set / 110-220 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Power out
from Radiomuseum.org Model: BX495U - Philips; Eindhoven tubes
Material Bakelite case
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 17.5 x 12 x 9 inch / 445 x 305 x 229 mm
Notes Does also have a band for fishery frequencies.
Price in first year of sale 275.00 Hfl
Source of data Technisch- Commercieel - Radio Vademecum Staleman

Model page created by John Koster. See "Data change" for further contributors.



All listed radios etc. from Philips; Eindhoven (tubes international!); Miniwatt
Here you find 4702 models, 3960 with images and 3124 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
Philips; Eindhoven: BX495U
Threads: 1 | Posts: 4
Hits: 2429     Replies: 3
philips: BX495U (BX 495 U);
Leon Ouziel Canals
14.Jun.09
  1

I am restoring a Philips BX495u that is in very poor condition. One of the parts that seems to be beyond repair is the output transformer. It is contained in a cube box filled with some very hard black resin. It code is A3 168 71.4 (see image, with the cover -and some resin- removed).

I could not in a schematic for this model but I am using those of BX485u/BX491u (no magic eye) and BX505u that are very similar. The equivalent part in these model is coded A3 168 71.0 (485u and 505u) and A3 151 48.0 (491u). Howver the 1949 revison of BX485u uses the same code as my model.

The unit contains a number of connection in the secondary. Apart from forming the speaker's transformer, they give feedback tension for the volume control. These are labelled S45-46-47-48-49-50-55 in the schematics of all models.

The tester indicates that the primary is cut (burned?) but due to the presence of the back resin, it seems impossible to have access and try to repair.

Can anybody help finding a replacement part or suggest an alterantive solution.

Many thanks in advance

Best regards

León

 Please pictures only <560Pixels !!!
I edit it to the right size. Regards Wolfgang Bauer

 

Torbjörn Forsman
16.Jun.09
  2

Try putting the transformer in boiling water for a few hours. If you have good luck, the resin may soften enough to permit removal of the transformer from the box.

Leon Ouziel Canals
17.Jun.09
  3

 Thanks Torbjörn,

In fact I have been informed that the product is coal tar. I have already been able to remove some by just heating with hair drier but to really remove the transformer clean I need something else. I was going to try with a solvent like xylene but I will try your suggestion first; seems easier.

I will let you know the result.

 

Leon Ouziel Canals
26.Jun.09
  4

 Well, it took some time and patience but he transformer is now out of the box. After trying other methods, I used a xylene based solvent (International® GTA 822; a solvent used to clean marine paint spraying equipment). By filling the enclosure several times with the solvent, letting it act on the tar and helping to remove the sticky product with a cutter, the transformer finally came out. Very messy job!

I will see now if it can be repaired.

(thanks to Wolfgang Bauer for editing my previous submission)

 
Philips; Eindhoven: BX495U
End of forum contributions about this model

  
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