THIS AWA STEREOGRAM is similar in concept to most others of the era. Normal AM radio reception was in mono, with a standard converter and one stage of intermediate frequency (IF) amplification and detection.

From here on, the difference between a mono radiogram and a stereo radiogram is apparent. The audio system is split into two identical amplifiers feeding speakers at the left and righthand ends of the cabinet to give the stereo effect. Some stereograms used the normal mono radiogram cabinet and put the second speaker into a satellite speaker box. This meant that a better stereo effect could be achieved.

The AWA B25/6 is a single-cabinet stereogram which stands on four splayed legs. There is a 6 x 9-inch oval speaker at either end of the cabinet. The radio and amplifier chassis is in the lefthand end and the controls are accessed under the lift-up lid above the 4-speed record changer.

To the right of the changer is a small area for storing a few 12-inch records. The righthand end is largely empty space with the second oval speaker situated in it. This was a relatively simple stereogram, designed to cater for the middle to low end of the market.

Removing the chassis

We all hope that the removal and reinstallation of the "works" from a cabinet will be easy and straightforward. While cleaning the dirt and muck off the cabinet, I looked carefully to see how the receiver chassis could be removed from the cabinet.

Despite the age of the unit, the chassis was in quite good condition. Note the mounting method for the pots, selector switch and tuning gang.

It looked like it could be a challenge. I’d seen the data on how to dismantle some of the slightly earlier models that appeared to be the same, as shown on the technical data sheets. However, close inspection revealed that the layout inside the record changer section was quite different to the ones in the data sheets.