The R208 Receiver

  Below is a complete example of the R208 "Sputnik Special" so called because it was sold by government surplus dealers as the ideal set for listening to the first artificial satellite, Sputnik 1. A hole in the front panel needs to be filled with a meter of some sort. Adding a meter was a useful modification when first introduced to the SWL market. A spare set of valves is included in the tray above the receiver panel. Below the first picture is the set with its protective cover (carrying the circuit diagram) in place.

Then after this is a set of pictures taken much later when I got round to fitting a meter into the unsightly hole in the front panel.

Read about its refurbishment





 An advert from the RSGB Bulletin in the early 1960s

Click to see Short Wave Magazine article

 R208 Circuit diagram (click to see PDF)


 I finally got round to fitting a meter in the hole cut in the front panel. The last owner of the receiver must have decided to salvage the meter, maybe when the set started acting up. We'll see when I attempt to power it up later...




 As you can see above the last owner made a bit of a mess of the panel. The most suitable replacement meter in my junk box is smaller than the original so requires a sub-panel to fit it, seen opposite. This is made from a piece of scrap steel from an old computer power supply case. The hole is cut by drilling a series of small holes before the thing is cut from the scrap metal to minimise distortion.. The ring is then cut using metal snips. Once cut I emery papered the surface to remove the plating then cleaned it with a grease solvent before spraying with a grey undercoat which is a fair match to the front panel.

Below, the new meter screwed temporarily in place. The screws not only hold the meter in place, but (see below) with the addition of washers and solder tags secure the sub-panel to the front panel.




 Below, before and after fitting the meter. I also filled the hole below the meter which may have had a fine-tuning control fitted by the previous owner, but now removed. It could also have been perhaps a meter switch for selecting either HT voltage or signal strength?



 Below are various views of the receiver. The 6-volt 4-pin vibrator and its spare are missing as is the AC/DC switch and wiring, but otherwise the receiver looks original. Usefully there is a mains power supply which by the notes on the top of the transformer is designed to work from virtually any AC mains voltage from 100 to 250 volts. Note the metal HT rectifiers rather than valve rectifiers.








 Now some front panel details showing that further repair work is necessary to put right modifications.





 Above the receiver, mounted in the case, is a box carrying accessories and various spare parts, including valves and an operator's manual.



 Click the picture to read the operator's manual

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