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Musikgerät 2550

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Musikgerät 2550; Grundig Radio- (ID = 1577920) Radio
Grundig Radio-: Musikgerät 2550 [Radio] ID = 1577920 933x577
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For model Musikgerät 2550, Grundig (Radio-Vertrieb, RVF, Radiowerke)
Country:  Germany
Manufacturer / Brand:  Grundig (Radio-Vertrieb, RVF, Radiowerke)
alternative name
Grundig Portugal || Grundig USA / Lextronix
Year: 1965/1966 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 3: ECC85 EAF801 ECL86
Semiconductors (the count is only for transistors) Tr.Gl.=Metal-rectif. AA119 AA119
Main principle Superheterodyne (common); ZF/IF 460/10700 kHz; 2 AF stage(s); Reflex
Tuned circuits 6 AM circuit(s)     10 FM circuit(s)
Wave bands Broadcast, Short Wave plus FM or UHF.
Power type and voltage Alternating Current supply (AC) / 110; 220 Volt
Loudspeaker 3 Loudspeakers
Power out 2.5 W (unknown quality)
from Model: Musikgerät 2550 - Grundig Radio-Vertrieb, RVF,
Material Wooden case
Shape Tablemodel with Push Buttons.
Dimensions (WHD) 550 x 310 x 220 mm / 21.7 x 12.2 x 8.7 inch

UKW/FM Bereich 87...108 MHz.
Technische Daten wie 2500, jedoch andere Wellenbereiche sowie 5-kHz-Interferenzsperre.
Die Konstruktion der Grundig 3-Röhren Empfänger begann 1955 mit dem Modell 80U, eine Vorstellung der Baureihe bis 1968 findet sich in diesem Gerätebericht.

The design of this radio was the responsibility of RM member and frequent contributer Hans Knoll, in 1965.

Net weight (2.2 lb = 1 kg) 6.3 kg / 13 lb 14 oz (13.877 lb)
Price in first year of sale 250.00 DM
External source of data erb
Source of data Handbuch VDRG 1965/1966
Mentioned in Taxliste Franzis Verlag
Literature/Schematics (1) -- Original-techn. papers.

All listed radios etc. from Grundig (Radio-Vertrieb, RVF, Radiowerke)
Here you find 6078 models, 5301 with images and 4094 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.


Forum contributions about this model
Grundig Radio-: Musikgerät 2550
Threads: 1 | Posts: 2
Hits: 4953     Replies: 1
grundig: 2550 Alignment by Hans Knoll
Joe Sousa

Fellow Radiophiles,

I just concluded a translation from from German to English, of the Repair Helper with Alignment instructions that our Hans Knoll wrote in 1965, for the Grundig 2550 AM/FM/SW/Phono 3 tube radio that he also designed. I own a very fine specimen of this very fine performer.

The 2550 is the last of this extremelly sucessful series of 3 tube AM/FM radios that lasted for 10 years, starting in 1955.

Berhard Nagel has a very nice post about his restoration of the model 80, which was the first radio of this series.

Hans Knoll has contributed widely on this and many other topics, including a complete list of all models of this series of Grundig 3 tube AM-FM radios, many of which he designed..

This English translation of the Grundig 2550 Repair Helper with Aligment instructions includes additional explanatory notes and text that fill in details about German Radio alignment practice that was well known by German trained technicians in the 1960's, but is needed for today's radio collector. The German language original for this translation was dowloaded from the 2550 model page.

This translation includes contributions from the original author, Hans Knoll, who clarified many of the circumstances around each alignment instruction, and gave his approval for the final translation. Prof. Dietmar Rudolph, also contributed clarifications of concepts in the original instructions that did not translate well. Finally, Thomas Albrecht, substantially improved the first draft that I initially edited with Google-Translate.

Thank you gentlemen and fellow radiophiles, for your patient help and guidance.

Best Regards,


Hans M. Knoll

Hello Joe.

I hope, that your work helps, to familiarize the radio engineering „Made in Germany“ worldwide and helpful during the restoration is.
It was an honor in this case, to help on this Project.

Hans M. Knoll, former development engineer GRUNDIG Germany.

Grundig Radio-: Musikgerät 2550
End of forum contributions about this model