Majestic Musical Instrument 7000USA 2042-100
Grundig (Radio-Vertrieb, RVF, Radiowerke); Fürth/Bayern
- País
- Alemania
- Fabricante / Marca
- Grundig (Radio-Vertrieb, RVF, Radiowerke); Fürth/Bayern
- Año
- 1957/1958
- Categoría
- Radio - o Sintonizador pasado WW2
- Radiomuseum.org ID
- 122091
-
- alternative name: Grundig Portugal || Grundig USA / Lextronix
Sams Photofact Folders reference picture.
170297457399/ Pic. just as type proof!
Haga clic en la miniatura esquemática para solicitarlo como documento gratuito.
- Numero de valvulas
- 6
- Principio principal
- Superheterodino en general
- Número de circuitos sintonía
- 7 Circuíto(s) AM 10 Circuíto(s) FM
- Gama de ondas
- OM, dos OC y FM
- Especialidades
- Tocadiscos con cambiador autom.
- Tensión de funcionamiento
- Red: Corriente alterna (CA, Inglés = AC) / 110; 125; 160; 220 Volt
- Altavoz
- 3 Altavoces
- Material
- Madera
- de Radiomuseum.org
- Modelo: Majestic Musical Instrument 7000USA 2042-100 - Grundig Radio-Vertrieb, RVF,
- Forma
- Consola con botonera.
- Ancho, altura, profundidad
- 640 x 780 x 390 mm / 25.2 x 30.7 x 15.4 inch
- Anotaciones
- 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 neto
- 32.5 kg / 71 lb 9.4 oz (71.586 lb)
- Mencionado en
- -- Original-techn. papers.
- Documentación / Esquemas (1)
- Photofact Folder, Howard W. SAMS (Date 8-58, Set 409, Folder 9)
- Autor
- Modelo creado por Ernst Erb. Ver en "Modificar Ficha" los participantes posteriores.
- Otros modelos
-
Donde encontrará 6212 modelos, 5442 con imágenes y 4208 con esquemas.
Ir al listado general de Grundig (Radio-Vertrieb, RVF, Radiowerke); Fürth/Bayern
Museos
El modelo Majestic Musical Instrument se puede ver en los siguientes museos.
Contribuciones en el Foro acerca de este modelo: Grundig Radio-: Majestic Musical Instrument 7000USA 2042-100
Hilos: 1 | Mensajes: 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