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Supra-Selector 37 SB4346GW

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Supra-Selector 37 SB4346GW; Körting-Radio; (ID = 209339) Radio
Körting-Radio;: Supra-Selector 37 SB4346GW [Radio] ID = 209339 792x700
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For model Supra-Selector 37 SB4346GW, Körting-Radio; Leipzig, später Grassau
 
Country:  Germany
Manufacturer / Brand:  Körting-Radio; Leipzig, später Grassau
alternative name
 
Dietz & Ritter GmbH, Dr.
Year: 1936/1937 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 6: CK1 CF3 CB2 CF3 CL4 optional CY1 EUVIII
Main principle Superheterodyne (common); ZF/IF 468 kHz
Tuned circuits 7 AM circuit(s)
Wave bands Broadcast, Long Wave and 2 x Short Wave.
Details
Power type and voltage AC/DC-set / 110; 125; 150; 220; 240 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Power out
from Radiomuseum.org Model: Supra-Selector 37 SB4346GW - Körting-Radio; Leipzig, später
Material Wooden case
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 490 x 404 x 305 mm / 19.3 x 15.9 x 12 inch
Notes variable Bandbreite. Abstimmanzeige durch Glimmröhre. Spartransformator!!.
Net weight (2.2 lb = 1 kg) 22 kg / 48 lb 7.3 oz (48.458 lb)
Price in first year of sale 415.00 RM
Source of data HandB.d.d.Rundfunk-Handels 1936/37 / Radiokatalog Band 1, Ernst Erb
Circuit diagram reference Lange+Schenk+FS-Röhrenbestückung


All listed radios etc. from Körting-Radio; Leipzig, später Grassau
Here you find 727 models, 574 with images and 419 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
Körting-Radio;: Supra-Selector 37 SB4346GW
Threads: 1 | Posts: 4
Hits: 1794     Replies: 3
korting: Can't get the 6 MHz frequency aligned. Ideas needed.
Paul E. Pinyot † 2013
10.May.12
  1

I am having difficulty getting the 6 MHz coil slug adjusted for the K1 SW band. 12 MHz trimmer cap adjusts just fine. But the 6 MHz slug can be pulled out of the coil but the oscillator is still running too low. I have cleaned this coil of all dirt and contaminants.

Are theses coil forms or wire insulation subject to deterioration? I have disassembled and cleaned the Oscillator section and switches a few times. Insured there were no visible damages to the oscillator coil. I changed the oscillator 50 pf (was 62pf) grid capacitor and the G2 to cathode 500pf (was 637 pf) capacitor.

I even tried to align the SW at 12 MHz minus IF but the trimmers did not cover that range.

I am open to any suggestion.

 

Hans M. Knoll
10.May.12
  2

Hello Paul.

It is not a miracle that you can not adjust  the radio.

The radio has Long Wave, Medium Wave and two SW- Ranges.

SW- Range 1, KW 1 (2)  goes from 3,529 Mcs to 12,00 Mcs

(85 to 25 meters)

SW- Range 2, KW 2 (1) goes from 11,11 Mcs to 23,076 Mcs.

(27 to 13 meters)

The IF is 468Kcs

The adjustment must only be done on  KW 1 (2)  with the Coil  at 3,529 Mcs and with the Trimmer at 12,00 Mcs.

On  KW 2 (1) the second Harmonics of the oscillator is used. the Range  turns out automatically without adjustment.

All German adjust planes are wrong!

 EDIT. maybe the Number SW 1 und SW 2 ist different. I to not know the Radio.

 

Edit #2

The shortwave ranges from Katalog VDRG 1936 are not realisitic.

please use the Version  V2a with the begin with 65 meters not 85 meters

hans

 

 

 

Hans M. Knoll ex GRUNDIG

 

 

 

 

 

 

 

 

 

 

Attachments

Paul E. Pinyot † 2013
10.May.12
  3

Hans M. Knoll

I will try the 3.529 Mhz alignment point and ignore the Osc frequency.  3.592 is found on the K2 SW band.  And you are correct, there is no separate alignment instruction. 

The alignment instruction has two points that are found on the K1 band 12 MHz and 6 MHZ.  But I will give 3.529 a try.

The last and final attempt to fix this is replace the CK1 converter tube.  But I must find one first.  Perhaps at the Kutztown PA Radio Meet this weekend.  And I would hope to find some sockets since none of my tube testers have those type of sockets and contacts.

There are also two other coil slugs (in the middle shielded box) that are NOT referenced in the alignment instructions.  I believe they are for the MW (broadcast band) 600 khz.

Thanks,

Paul.

Hans M. Knoll
11.May.12
  4

Please use the new version of Datas in Post# 2

O.K.

hans

 

 

 
Körting-Radio;: Supra-Selector 37 SB4346GW
End of forum contributions about this model

  
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