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SV200; Grundig Radio- (ID = 611435) Ampl/Mixer
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SV200; Grundig Radio- (ID = 182154) Ampl/Mixer
Grundig Radio-: SV200 [Ampl/Mixer] ID = 182154 933x385
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For model SV200, Grundig (Radio-Vertrieb, RVF, Radiowerke)
Country:  Germany
Manufacturer / Brand:  Grundig (Radio-Vertrieb, RVF, Radiowerke)
alternative name
Grundig Portugal || Grundig USA / Lextronix
Year: 1971/1972 Category: Audio Amplifier or -mixer
Semiconductors (the count is only for transistors) 51:
Main principle Audio-Amplification
Wave bands - without
Power type and voltage Alternating Current supply (AC) / 110; 130; 220; 240 Volt
Loudspeaker - This model requires external speaker(s).
Power out
from Model: SV200 - Grundig Radio-Vertrieb, RVF,
Material Wooden case
Shape Book-shelf unit.
Dimensions (WHD) 500 x 150 x 290 mm / 19.7 x 5.9 x 11.4 inch
Notes Grundig HiFi-Stereo-NF-Verstärker SV200 mit 2 Endstufen je 50 W (Sinus). Leistungsbandbreite: 10-50000 Hz bei max. 1 % Klirrfaktor.
Net weight (2.2 lb = 1 kg) 16.2 kg / 35 lb 10.9 oz (35.683 lb)
Collectors' prices  
External source of data Erb
Source of data Handbuch VDRG 1971/1972

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-: SV200
Threads: 2 | Posts: 6
Hits: 6384     Replies: 4
grundig: SV200; Replacement for a Zener Diode Z503
Vincent de Franco

Question received per Email:

One of our member is looking for a replacement Zener Diode Z503 on the schematics attached. On the diode itself NT 9838 can be read.

Thank you in advance for your support.


Hans M. Knoll


I recommend as substitute on SV140 and SV200.

Zener Diode Z503:  

2 pieces Zener diode BZY97-33 in Series-Connection.
That makes:  ( 2x 31 to 35V) =  62V to 70 Volts at the Basis from  T515

Or 1 piece of 1N3040 B
That makes
68 Volts of +/- 5 % = ( 64,6  to 71,4 Volts ) at the Basis from  T515

Hans M. Knoll ex GRUNDIG


Vincent de Franco

(Translated from French)

I would like to thank Mr. Knoll very much for the answer he has posted on the forum regarding the zener diode Z503 of the GRUNDIG SV200 amplifier.

It seems that the recommended diodes are impossible to find here and on the internet sites I have looked at, and would be replaced by ZPY68 (1,3 W) or model 1N5373B (5W).

The SV200 amplifier that I have seems to be one later model containing a N 9838 (10W) in a DO4 enclosure fixed with a bolt on the chassis, and seems to be an original one.

Perhaps it is a modification that was done on this last model serial # 15117 from 1972.

Thank you in advance for your appreciated support.

B. Rétif

Paul Reid

According to the posted plan, the part should be 56V-60V at 1 Watt
It may be easier to find two 28V-30V at 0.5 Watt. Or three 20V 0.5 Watt.

Farnell France

Search "Zener"
Semiconducteurs - Composants discrets
56V 1 W

Look for parts with legs (not surface-mount)

NXP - BZV85-C56 - DIODE ZENER 1.3W 56V
Code commande: 1097262
Référence fabricant: BZV85-C56
Tension, Vz: 56V
Type de boîtier diode: DO-41
4092 en stock pour une livraison le jour ouvrable
Quantité minimum: 5
Prix Unitaire HT: 0,35 €  

> containing a N 9838 (10W) in a DO4 enclosure fixed with a bolt on the chassis

There is a simpler circuit possible. The transistor T515 is omitted. The "2,7K" is made lower, perhaps 100 ohms power resistor. Then the Zener must be several Watts.

Code commande: 1672863
Référence fabricant: 1N3000B
Diode Case Style: DO-4
Disponibilité: 10 Stocké aux USA
Prix Unitaire HT: 14,75 €  

DO4 package

Be sure which circuit it is-- small Zener and a pass-transistor, or big Zener with no transistor.  

Vincent de Franco

In the name of our Email contact, thank you to you both for your appreciated support.

Hits: 3133     Replies: 0
grundig: SV200 (SV 200);  
Hans M. Knoll

Hallo Herr Weiss.

Die Schaltung des SV140 ist zu 100% identisch zum SV200. Nur die Optik ist neu.


Grundig Radio-: SV200
End of forum contributions about this model