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Arkansas 59 Full Stereo 4536 Ch= 2531 USA

Arkansas 59 Full Stereo 4536 Ch= 2531 USA; Blaupunkt Ideal, (ID = 2300507) Radio Arkansas 59 Full Stereo 4536 Ch= 2531 USA; Blaupunkt Ideal, (ID = 2300513) Radio
Arkansas 59 Full Stereo 4536 Ch= 2531 USA; Blaupunkt Ideal, (ID = 2300514) Radio
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Arkansas 59 Full Stereo 4536 Ch= 2531 USA; Blaupunkt Ideal, (ID = 2300507) Radio
Blaupunkt Ideal,: Arkansas 59 Full Stereo 4536 Ch= 2531 USA [Radio] ID = 2300507 1267x557
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For model Arkansas 59 Full Stereo 4536 Ch= 2531 USA, Blaupunkt (Ideal), Berlin, später Hildesheim
 
Country:  Germany
Manufacturer / Brand:  Blaupunkt (Ideal), Berlin, später Hildesheim
alternative name
 
Ideal-Radiotelephon- und App-fabr. || Ideal-Werke AG; Berlin (ab 1934)
Brand
Rotstern
Year: 1958/1959 ? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 9: ECC85 EF89 ECH81 EF89 EM84 EABC80 EBC91 EL84 EL84
Semiconductors (the count is only for transistors) B250C150
schematic requested
Main principle Superhet with RF-stage; Export model
Wave bands Broadcast, Long Wave, Short Wave plus FM or UHF.
Details Changer (Record changer)
Power type and voltage Alternating Current supply (AC) / 105-120 Volt
Loudspeaker 5 Loudspeakers
Power out
from Radiomuseum.org Model: Arkansas 59 Full Stereo 4536 Ch= 2531 USA - Blaupunkt Ideal, Berlin,
Material Wooden case
Shape Console with Push Buttons.
Dimensions (WHD) 1175 x 770 x 440 mm / 46.3 x 30.3 x 17.3 inch
Notes

Frequency ranges:

  • LW = 148 - 375 kHz
  • AM = 515 - 1620 kHz
  • SW = 5.95 - 18.2 MHz
  • FM = 87.4 - 108 MHz

Console with bar compartment.

Export version for the USA. See also domestic model Arkansas 59 Vollstereo 4534.

Net weight (2.2 lb = 1 kg) 51.7 kg / 113 lb 14 oz (113.877 lb)
Mentioned in - - Manufacturers Literature (User manual)

Model page created by James Morey II. See "Data change" for further contributors.



All listed radios etc. from Blaupunkt (Ideal), Berlin, später Hildesheim
Here you find 3214 models, 2898 with images and 2221 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
Blaupunkt Ideal,: Arkansas 59 Full Stereo 4536 Ch= 2531 USA
Threads: 1 | Posts: 5
Hits: 740     Replies: 4
Unknown Blaupunkt Chassis
James Morey II
12.Sep.18
  1

Hello, can anybody help me in identifying this radio? I am having trouble figuring out what tubes to place in the 4 rightmost positions near the power transformer. Does anybody have any more information on this radio? Thank you.

Giovanni Cucuzzella
12.Sep.18
  2

Hi James,

I have sent you an email.

best regards

Giovanni

Michael Watterson
13.Sep.18
  3

Looks like a USA version of this:

Riviera 2540

or Riviera 2640

See also this USA model (similar but 2x EL84 B9A  instead of smaller B7G EL95)

There are also models with only one EL95 or EL84. Examination of audio transformer wiring and tube base should show which (mono single ended, push pull, stereo or hybrid switchable mono-push-pull / stereo-single ended).

Likely it's from a big radiogram cabinet and stereo single ended.

Search: Radios Only, Germany, Blaupunkt, on Home page with photo and tubes ticked for 1957 to 1963.

Michael Watterson
13.Sep.18
  4

Actually looks like it has a stereo decoder (2x single ended tubes near scale) maybe even with a stereo decoder (the two tubes in shielded part).

Earlier models, especially in Europe, that were stereo had no decoder. The stereo was only on gram or tape.

Bernhard Nagel
13.Sep.18
  5

Most probably Blaupunkt 2531 USA is an early stereophonic console chassis (AF only, there is no provision for an MPX adapter). This is the predecessor of the Riviera USA 2633 MX.

The chassis has 9 tubes which are from left to the right ECC85, EF89, ECH81, EF89, EABC80, EL84, EBC41, EL84, magic eye EM84. The two tubes EBC41 and EL84 (2nd audio channel) are separated in the elevated "box" beside the lower EL84.

The remaining two bases (one 7-pin and one 9-pin mounted at the right) is the provision for connecting the speaker array (green dot) and the record changer/illumination (red dot) of the console. Danger: No tubes shall be put in there! Please refer to the schematic sch1c.pdf from the Riviera console mentioned above. Your chassis 2531 USA may be identical here.

Blaupunkt Riviera USA 2633 MX, audio and power supply

Update: The new model has been accepted and the forum thread is now tied with it.

 
Blaupunkt Ideal,: Arkansas 59 Full Stereo 4536 Ch= 2531 USA
End of forum contributions about this model

  
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