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UKW-Concert-Boy 57

UKW-Concert-Boy 57; Grundig Radio- (ID = 35868) Radio
UKW-Concert-Boy 57; Grundig Radio- (ID = 35869) Radio
UKW-Concert-Boy 57; Grundig Radio- (ID = 35867) Radio
UKW-Concert-Boy 57; Grundig Radio- (ID = 35870) Radio
UKW-Concert-Boy 57; Grundig Radio- (ID = 12525) Radio
UKW-Concert-Boy 57; Grundig Radio- (ID = 12526) Radio
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UKW-Concert-Boy 57; Grundig Radio- (ID = 1854795) Radio UKW-Concert-Boy 57; Grundig Radio- (ID = 1854796) Radio
UKW-Concert-Boy 57; Grundig Radio- (ID = 1854797) Radio UKW-Concert-Boy 57; Grundig Radio- (ID = 1854798) Radio
UKW-Concert-Boy 57; Grundig Radio- (ID = 1854799) Radio UKW-Concert-Boy 57; Grundig Radio- (ID = 1854800) Radio
UKW-Concert-Boy 57; Grundig Radio- (ID = 1854801) Radio UKW-Concert-Boy 57; Grundig Radio- (ID = 1854802) Radio
UKW-Concert-Boy 57; Grundig Radio- (ID = 1955836) Radio UKW-Concert-Boy 57; Grundig Radio- (ID = 1955837) Radio
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UKW-Concert-Boy 57; Grundig Radio- (ID = 1854795) Radio
Grundig Radio-: UKW-Concert-Boy 57 [Radio] ID = 1854795 1400x1090
Select picture or schematic to display from thumbnails on the right and click for download.
For model UKW-Concert-Boy 57, Grundig (Radio-Vertrieb, RVF, Radiowerke):
221772511438 by gerhanra141
Country:  Germany
Manufacturer / Brand:  Grundig (Radio-Vertrieb, RVF, Radiowerke)
alternative name
Grundig Portugal || Grundig USA / Lextronix
Year: 1957/1958 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 9: DF97 DF97 DK96 DF97 DF97 DF97 DAF96 DL96 EL95
Semiconductors (the count is only for transistors) RL232 or. OA172 RL232 or. OA172 E14C350 B250C30
Main principle Superheterodyne (common); ZF/IF 468/10700 kHz
Tuned circuits 8 AM circuit(s)     12 FM circuit(s)
Wave bands Broadcast, Long Wave, Short Wave plus FM or UHF.
Power type and voltage Line / Batteries (any type) / 110/125; 160; 220 / DEAC D3,5 or 1,5 & 90 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
Power out 0.15 W (unknown quality)
from Model: UKW-Concert-Boy 57 - Grundig Radio-Vertrieb, RVF,
Material Bakelite case
Shape Portable set > 8 inch (also usable without mains)
Dimensions (WHD) 430 x 250 x 180 mm / 16.9 x 9.8 x 7.1 inch
Notes DL96 für Batterie-, EL95 für Netz-Betrieb (dann 1,2 W Ausgangsleistung).
Net weight (2.2 lb = 1 kg) 7.8 kg / 17 lb 2.9 oz (17.181 lb)
Price in first year of sale 370.00 DM
Source of data HdB d.Rdf-& Ferns-GrH 1957/58 / Radiokatalog Band 1, Ernst Erb
Circuit diagram reference Lange Schaltungen der Funkindustrie, Buch 4
Literature/Schematics (1) -- Original-techn. papers.

All listed radios etc. from Grundig (Radio-Vertrieb, RVF, Radiowerke)
Here you find 6086 models, 5308 with images and 4099 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.


Forum contributions about this model
Grundig Radio-: UKW-Concert-Boy 57
Threads: 3 | Posts: 8
Hits: 705     Replies: 0
Grundig: Kondensatoren im Grundig Concert Boy 58
Werner Thünel

Hallo liebe Sammlerkollegen,

ich habe gerade begonnen meinen Grundig Concert Boy komplett aufzubereiten. Da ich nirgends eine Stückliste gefunden habe, war ich gezwungen mir selbst teilweise eine zu erstellen. Mir ging es in der Hauptsache um die Kondesatoren, die man ja wenn möglich und notwendig tauschen soll. Besonders die leckeren WIMA-Karamellbonbons. Ich habe also aus einem Plan sämtliche Kondensatoren gesucht und in eine CSV-Datei abgelegt. Drehko, Trimmer und den "dicken" Netzelko allerdings nicht. Ich hänge die CSV-Datei mal dran und wer interessiert ist kan sie downloaden.



Werner Thünel

Hits: 3066     Replies: 3
grundig: 57; UKW-Concert-Boy Dial Glass
Joe Sousa

Fellow Radiophiles,

I am looking for a scan of the dial glass for the Grundig Concert-Boy 57.

I plan to print the scan on a clear transparency, then place the transparency behind a new piece of clear glass to replace the broken glass. I plan to try using the yellow toner of a color laser printer to imitate the gold paint.

The radio that this glass is for was kindly given to me by RMORG member Ross Hochstrasser.Ross has a very extensive collection of German Radios. It must be one of the largest German radio collections in the USA, if not the largest.

The dial glass can be accessed by removing the chassis. Four nuts hold down the chassis against the  case front, and the speaker wires have to be disconnected. A long nut-driver is needed. Then the knobs are easily removed by loosening their screws. The glass should then be removable for scanning.

This dial has a single layer of paint. The scan should be done with the paint side face down on the glass for sharpest clarity. The scan will show an image in reverse, but this is not a problem.

The scan toning and file formatting is best done as is for a schematic.

Alernately, perhaps someone can sell me a spare glass, or know a service that makes reproductions.



Bernhard Nagel

Dear Joe,

if no other offer has reached you the last days, I may help you with a dial scan from the previous model UKW-Concert-Boy 56. The dial seems to be almost identical with the exception that the lettering "AUS-EIN" behind the volume/ON-OFF knob has swapped the sides. The 56s model says "EIN-AUS".

No idea what has been the reason for altering this... With a picture program, it would be easy to exchange the words to fit originally to the 57s model.

Please compare the dials of both models, I keep this thread for now as a question.


Joe Sousa

Dear Bernhard,

Thank you very much for emailing the scans of for the Concert Boy 56 UKW. I really appreciate the effort you must have taken to remove the glass and scan it.

I have about 90% of the original Concert Boy 57 UKW scale. There is a small section in the center that is broken and is missing.

I will scan what is left of my 57 scale and edit together a full version, by merging with your 56 scan.

I will post the results later,

Best Regards,


Joe Sousa

I managed to merge the end zones of my broken 57 with Bernhard's scan of the 56, and uploaded the result as a schematic.

The scan is at 400dpi in black print. The original is in gold pring. I plan to print my glass in black on a clear transparency, and place a white paper behind the glass in the radio to change the background from black to white for contrast.

I did some experimentation with yellow print on acetate with a laser printer and resulting print is too transparent and non-reflective. My attempts at heat application of gold leaf to the yellow laser acetate printout also failed.

Thank you Bernhard, for making all this possible.


Hits: 3360     Replies: 2
grundig: 57; UKW-Concert-Boy compoents identification and
Songping Wan

Dear RM members:

I am trying to restore my Grundig UKW Concert Boy 57, when play on line supply, sound is weak and distorted, the supply voltage is very low, measured on EL95 plate 135V (Normal 180V), on C56 170V (Normal 225V).

 I carefully checked and found R18 looks like burnt, it is marked as NSF 1810-212, I checked its risistance, it is initially 18Kohm and goes up,  seems to be stablized at 25Kohm.  Anyone know what R18 is,  a special resistor? How does it cause the problem? Where could I find a replacement?

Thank you very much for attention and looking forward to your help.


Hans M. Knoll

Hello Grundigfriend

The searched component is a „NTC"  (negative temperature coefficient resistor)

His Voltagetropout on 30 mAmp. is 21 volt's you must use a Type they have 700 ohms (worm) at 25 C° Roomtemp.   U / I   Values see Diagram.

I think, today only 470 or 1000 ohm's available. You can make a combination with a 470-ohm’s NTC in series with 220 normal Resistor, or 1000 ohm’s NTC and parallel a 420 (470) ohm’s resistor.

I cannot find any Data for this 50 years old original element from Grundig.

1973 VALVO offers the type:   2322 636 01473 , with 47 Kohm at 25°C and when a current of  42mA flows,  a resistance  of  800 Ohm and a  max. Powerconsumption of 1,5 Watt. I dont now, how can deliver this.

Best results!

Songping Wan

Hello Hans:

Thank you very much for your information, that helps a lot, I am searching for an exact replacement at this moment, if anyone knows where I can find one, please kindly let me know.

Best Regards


Grundig Radio-: UKW-Concert-Boy 57
End of forum contributions about this model