Majestic Musical Instrument 7000USA 2042-100
Grundig (Radio-Vertrieb, RVF, Radiowerke); Fürth/Bayern
- Paese
- Germania
- Produttore / Marca
- Grundig (Radio-Vertrieb, RVF, Radiowerke); Fürth/Bayern
- Anno
- 1957/1958
- Categoria
- Radio (o sintonizzatore del dopoguerra WW2)
- Radiomuseum.org ID
- 122091
-
- alternative name: Grundig Portugal || Grundig USA / Lextronix
Sams Photofact Folders reference picture.
170297457399/ Pic. just as type proof!
Clicca sulla miniatura dello schema per richiederlo come documento gratuito.
- Numero di tubi
- 6
- Principio generale
- Supereterodina (in generale)
- N. di circuiti accordati
- 7 Circuiti Mod. Amp. (AM) 10 Circuiti Mod. Freq. (FM)
- Gamme d'onda
- Onde medie (OM), 2 gamme di onde corte (2 x OC) e MF (FM).
- Particolarità
- Cambiadischi
- Tensioni di funzionamento
- Alimentazione a corrente alternata (CA) / 110; 125; 160; 220 Volt
- Altoparlante
- 3 altoparlanti
- Materiali
- Mobile in legno
- Radiomuseum.org
- Modello: Majestic Musical Instrument 7000USA 2042-100 - Grundig Radio-Vertrieb, RVF,
- Forma
- Console con tastiera/pulsantiera.
- Dimensioni (LxAxP)
- 640 x 780 x 390 mm / 25.2 x 30.7 x 15.4 inch
- Annotazioni
- Phono-Chassis = Monarch TC8M.
The Grundig Musikschrank 7000 with design number 2042 was made for domestc purpose (or German speaking countries) in two wood colors ("hell" or "dunkel"). According to Mr. Hans M. Knoll (former Grundig designer) the following export models were made: Grundig-Majestic = 7000USA with design number Z. 2042-100; 7000S SEMKO for Sweden with design number Z. 2042-200; for Italy 7000I (Z 2042-300); Export for AM only 7000WE (Z. 2042-500). See also the similar situation for model 7015.
- Peso netto
- 32.5 kg / 71 lb 9.4 oz (71.586 lb)
- Bibliografia
- -- Original-techn. papers.
- Letteratura / Schemi (1)
- Photofact Folder, Howard W. SAMS (Date 8-58, Set 409, Folder 9)
- Autore
- Modello inviato da Ernst Erb. Utilizzare "Proponi modifica" per inviare ulteriori dati.
- Altri modelli
-
In questo link sono elencati 6212 modelli, di cui 5442 con immagini e 4208 con schemi.
Elenco delle radio e altri apparecchi della Grundig (Radio-Vertrieb, RVF, Radiowerke); Fürth/Bayern
Musei
Il modello Majestic Musical Instrument può essere visto nei seguenti musei.
Discussioni nel forum su questo modello: Grundig Radio-: Majestic Musical Instrument 7000USA 2042-100
Argomenti: 1 | Articoli: 9
I am working on a Grundig Majestic 7000 console. Phono, AM. SW1, SW2 and FM.
I am a little puzzled by a few things on the schematic. For example, the de-emphasis network would appear to be R21 and C32. However, with values of 33K and 47 pF, it would appear to be set at 1.5 us rather than either 50 or 75 us per broadcast standards. Is the de-emphasis handled elsewhere in the radio, such as incorporated in the negative feedback portion of the audio pre-amp and amplifier?
As to be expected, the tone quality of the radio is very bass heavy. I did modify the values of C44 and R28 on the loudness tap on the volume control which helped considerably with excessive bass as lower volume levels. C44 was 15 nf, I changed that to 1.5 nF (0.0015 uf) and R28 from 22K to 220 K. This makes the amount of bass boost at lower volume levels less pronounced.
A Russian 6E5C substituted for the nearly unobtainable EM34 eye tube easily enough. Note: These tubes are NOT pip for pin compatible. If you plug a 6E5C into the socket wired for an EM34, you will connect B+ to the grid of the 6E5C. The 6E5C data sheet says -8.25V for deflection while the EM34 needs - 16 V so there is a bit less sensitivity.
Jeff
I am a little puzzled by a few things on the schematic. For example, the de-emphasis network would appear to be R21 and C32. However, with values of 33K and 47 pF, it would appear to be set at 1.5 us rather than either 50 or 75 us per broadcast standards. Is the de-emphasis handled elsewhere in the radio, such as incorporated in the negative feedback portion of the audio pre-amp and amplifier?
As to be expected, the tone quality of the radio is very bass heavy. I did modify the values of C44 and R28 on the loudness tap on the volume control which helped considerably with excessive bass as lower volume levels. C44 was 15 nf, I changed that to 1.5 nF (0.0015 uf) and R28 from 22K to 220 K. This makes the amount of bass boost at lower volume levels less pronounced.
A Russian 6E5C substituted for the nearly unobtainable EM34 eye tube easily enough. Note: These tubes are NOT pip for pin compatible. If you plug a 6E5C into the socket wired for an EM34, you will connect B+ to the grid of the 6E5C. The 6E5C data sheet says -8.25V for deflection while the EM34 needs - 16 V so there is a bit less sensitivity.
Jeff
Jeffrey Angus, 09.Nov.07