LUXMAN vintage audio
Sony ST4950 Tuner
Around 1980 Sony company came with its ST4950 high quality tuner on the European market. In some respect it was a competitor to the cheaper Luxman tuners.
The Sony ST4950 tuner incorporates special custom Sony IC IF amps as you can see on the photo. It has a 4 gang varicap on the Alps front-end.
It has standard Hitachi ICs for stereo and FM demodulation. Also a LF filter block is on the pcb. The power supply is simple. It has a hi-blend switchable filter. A multipath switch is available.
AM reception is also an option.
The sound is great and reception is good.
Electrolytic caps can be replaced and cooling of the power supply transistor can be improved.
© Hans Hilberink - PE1MMK ® 2003 - Last update: 15-01-2010.