Serial number KZ 049561
Portable Transistor radio Made for Philips in Hong Kong, possibly by Hang Sing. The radio is housed in a grey and tan plastic case. This is a typical cheap six transistor radio only covering the medium waveband. This radio is powered by two 1.5 volt cells in series. I purchased it in 2013 for 99p on Ebay. working Hong Kong 1965 approx [guessed from date code on the loudspeaker].
View of interior
Enlarged view of schematic diagram.