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Musikgerät 87WE

Musikgerät 87WE; Grundig Radio- (ID = 622223) Radio
Musikgerät 87WE; Grundig Radio- (ID = 437452) Radio Musikgerät 87WE; Grundig Radio- (ID = 437454) Radio
Musikgerät 87WE; Grundig Radio- (ID = 437453) Radio Musikgerät 87WE; Grundig Radio- (ID = 437462) Radio
Musikgerät 87WE; Grundig Radio- (ID = 524522) Radio Musikgerät 87WE; Grundig Radio- (ID = 807218) Radio
Musikgerät 87WE; Grundig Radio- (ID = 1156934) Radio Musikgerät 87WE; Grundig Radio- (ID = 1178303) Radio
Musikgerät 87WE; Grundig Radio- (ID = 1178304) Radio Musikgerät 87WE; Grundig Radio- (ID = 1178305) Radio
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Musikgerät 87WE; Grundig Radio- (ID = 437452) Radio
Grundig Radio-: Musikgerät 87WE [Radio] ID = 437452 933x700
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For model Musikgerät 87WE, Grundig (Radio-Vertrieb, RVF, Radiowerke):
Front
 
Country:  Germany
Manufacturer / Brand:  Grundig (Radio-Vertrieb, RVF, Radiowerke)
alternative name
 
Grundig Portugal || Grundig USA / Lextronix
Year: 1958 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: ECH81 EF89 EBC41 EL95
Main principle Super-Heterodyne (Super in general); ZF/IF 460 kHz
Wave bands Broadcast and Short Wave (SW).
Details
Power type and voltage 110; 220 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical / Ø 15 cm = 5.9 inch
Power out
from Radiomuseum.org Model: Musikgerät 87WE - Grundig Radio-Vertrieb, RVF,
Material Modern plastics (no Bakelite or Catalin)
Shape Tablemodel with Push Buttons.
Dimensions (WHD) 335 x 200 x 150 mm / 13.2 x 7.9 x 5.9 inch
Notes Export model. Rectifier E250C85.
Achtung, keine Netztrennung, nur Autotrafo.
Danger, linevoltage at chassis.
Net weight (2.2 lb = 1 kg) 3 kg / 6 lb 9.7 oz (6.608 lb)
Collectors' prices  
Literature/Schematics (1) -- Schematic

Model page created by Carlos Alves. See "Data change" for further contributors.



All listed radios etc. from Grundig (Radio-Vertrieb, RVF, Radiowerke)
Here you find 5989 models, 5200 with images and 4035 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
Grundig Radio-: Musikgerät 87WE
Threads: 1 | Posts: 3
Hits: 1576     Replies: 2
grundig: 87WE; Musikgerät
Graham GUY
25.Jun.11
  1

Fellow RMorg Members,

                                  I have just dug this model out of my "to do" pile in my garage where it rested along with perhaps 70 others.

Although eventually (you`ll understand why I say this) the unit works very well, on start-up it exhibits a curious phenomenon: initially, after about a minute, the sound comes through perfectly for about 5 seconds; it then `clicks off``(the radio stays illuminated), and doesn`t come back to sound until a further minute or so.

This start-up timing is almost always exactly the same - 1 minute followed by 5 seconds followed by another minute, then "bingo" it works more or less normally - very occasionally it goes through the "click off/click on" procedure several times in rapid succession.

Anyone any idea where a very amateur radio collector should start looking to get rid of this irritating fault - the radio is eventually destined for use in a bedroom?

g.guy

Michael Watterson
16.Dec.11
  2

I had effect on a Siemens where after about a minute the audio quality would change and EM84 go out. Occasionally it would come back on again after a few seconds, for a few seconds, with associated clicks and change in audio quality.

You had to turn of the radio for several minutes to reset the process. A replacement Chinese 6E2 Magic Eye works perfectly. Though with the meter I couldn't see any change in grid voltage or other electrodes, or HT, the changes in audio quality (amount of treble) significant when the EM84 went on and off. The main HT would gradually drop as the set warmed up.  I am temped to test the EM84 with reduced heater voltage.

I can only presume that as it heated up it was shorting partially in some fashion not obvious to my DMM measurements.

It's possible you have one faulty part or valve/tube that is creating an intermittant short or extra load as the radio heats up?

 

Heribert Jung
16.Dec.11
  3

Graham, the 87WE may be dangerous. There is no transformer for separating the line from chassis. The Autotransformer uses the primary winding also for the Anode-voltage. So do not touch the chassis or any metal component as long as the power line is connected. Do not try to measure any voltage without using an external  transformer.

If you connect the line plug so, that ground is on chassis, the danger is lower, but not save. In that case a 10mA FI safety plugin-automate is a good thing. 

I think such a radio is collactible, but it is not the best idea to use it in bedroom.

Did you replace the defect paper capacitors? They look often defect and they are. Moist went inside and the internal isolation became bad.

If you have a safety transformer, you should measure the voltage, as they are printed in the schema next to tube sockets.

 Heribert Jung

 

 
Grundig Radio-: Musikgerät 87WE
End of forum contributions about this model

  
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