Philips Electronics
Single BTL power driver
Philips Electronics
Low voltage mono/stereo power amplifier
Unisonic Technologies
FM receiver circuit for battery supply
Philips Electronics
2 x 1 W portable/mains-fed stereo power amplifier
Philips Electronics
FM radio circuit for MTS
Philips Electronics
FM radio circuit
NXP Semiconductors.
1 W BTL mono audio amplifier with DC volume control
Philips Electronics
Low voltage PLL stereo decoder