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Arietta 730

Arietta 730; REMA, Fabrik für (ID = 459274) Radio
 
Arietta 730; REMA, Fabrik für (ID = 459275) Radio
 
Arietta 730; REMA, Fabrik für (ID = 459361) Radio
 
Arietta 730; REMA, Fabrik für (ID = 459362) Radio
 
Arietta 730; REMA, Fabrik für (ID = 459363) Radio
Arietta 730; REMA, Fabrik für (ID = 364924) Radio Arietta 730; REMA, Fabrik für (ID = 367005) Radio
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Arietta 730; REMA, Fabrik für (ID = 367007) Radio Arietta 730; REMA, Fabrik für (ID = 367008) Radio
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Arietta 730; REMA, Fabrik für (ID = 364924) Radio
REMA, Fabrik für: Arietta 730 [Radio] ID = 364924 800x451
Select picture or schematic to display from thumbnails on the right and click for download.
For model Arietta 730, REMA, Fabrik für Rundfunk, Elektrotechnik und Mechanik, Stollberg (Ostd.)
 
Country:  Germany
Manufacturer / Brand:  REMA, Fabrik für Rundfunk, Elektrotechnik und Mechanik, Stollberg (Ostd.)
Year: 1971–1979 Type: Broadcast Receiver - or past WW2 Tuner
Semiconductors (the count is only for transistors) 27:
Principle Super-Heterodyne (Super in general); ZF/IF 455(460) kHz
Tuned circuits 7 AM circuit(s)     13 FM circuit(s)
Wave bands Broadcast, Long Wave, Short Wave plus FM.
Details
Power type and voltage Alternating Current supply (AC) / 220 Volt
Loudspeaker - This model requires external speaker(s).
Power out 6 W (unknown quality)
from Radiomuseum.org Model: Arietta 730 - REMA, Fabrik für Rundfunk,
Material Wooden case
Shape Book-shelf unit.
Dimensions (WHD) 610 x 170 x 210 mm / 24 x 6.7 x 8.3 inch
Notes

Stereo-Transistor-Receiver plus 2 externe 7-Liter-Kompaktboxen Preis je nach Gehäuse zwischen 1070,- und 1090,- DM. ZF auch 460 kHz. Arietta 734 gleiches Modell aber UKW bis 104 MHz (siehe dort).
Nach Austausch der Endstufentransistoren ist der Ruhestrom mit R 616/716 (durch Austausch des Festwiderstandes bzw. Einstellung am Regler) auf 20 mA einzustellen. Die Messung erfolgt an R619/R719 auf 10 mV.

Gehäusevarianten: Dekorfolie, mattiert (1070 Mark), Dekorfolie poliert (1090 Mark), farbige Dekorfolie, mattiert (1070 Mark), farbige Dekorfolie, poliert (1090 Mark).

Net weight (2.2 lb = 1 kg) 9 kg / 19 lb 13.2 oz (19.824 lb)
Price in first year of sale 1,090.00 DM
Collectors' prices  
External source of data E. Erb 3-907007-36-0
Source of data Radiokatalog Band 2, Ernst Erb
Mentioned in Historische Radios Band IV (196B)
Literature/Schematics (1) Funkverlag Hein, Service-CD Rema
Literature/Schematics (2) Sortimentskatalog Elektroakustik (DDR, 1979)
Picture reference Das Gerät ist im Doppelband "Historische Radios" von Günther Abele abgebildet.

All listed radios etc. from REMA, Fabrik für Rundfunk, Elektrotechnik und Mechanik, Stollberg (Ostd.)
Here you find 140 models, 113 with images and 93 with schematics.

 


Forum contributions about this model
REMA, Fabrik für: Arietta 730
Threads: 1 | Posts: 2
Hits: 960     Replies: 1
rema: 730; Arietta
Svetolik Bajevic
15.Jul.11
  1

I have model with labeled Rema Arietta 734.

DC voltage on the speaker output is -24V(collector of the output tranzistor) what is the maximum voltage measured in the whole circuit.

the output electrolytes is likely shortcuted but I am confused because it works on old speker full powered without issues.

Any ideas?

Thanks

Svetolik Bajevic
18.Jul.11
  2

Just understand how it works. The speakers make connection from supply line to the collector of split phase tranzistor and bring ref, voltage to the output circuit! So when Rema is powered without speakers there is -24V supply voltage on the one pole of speker terminal. Connecting speker will make bang! and turn on split phase tranzistor in order to get voltage ballance, Than comes music.

When is speaker already connected, powering on will bring music without banging becuse speker floating on the same potential on the poles -24V, no differntial of poential between termunals, no DC voltage.

Save as milk.

Great sound circuit with power supply noise reject.

DDR rocks.

 
REMA, Fabrik für: Arietta 730
End of forum contributions about this model

  
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