Philips Electronics
Sound-IF circuit for TV AM-sound standard L and L’
Philips Electronics
Quasi-split sound processor for all standards
Philips Electronics
Single FM TV-sound demodulator circuit
Philips Electronics
Quasi-split sound processor with two FM demodulators
Philips Electronics
Quasi-split sound processor with two FM demodulators
Philips Electronics
BTSC-stereo/SAP/DBX decoder and DBX expander
Philips Electronics
Spatial, stereo and pseudo-stereo sound circuit
Philips Electronics
Quasi split-sound circuit and AM demodulator
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