![Telefunken](/logo/Telefunken.png)
Telefunken Licences GmbH
Quasi Parallel Sound Processing with Quadrature Intercarrier Demodulator
![Philips](/logo/Philips.png)
Philips Electronics
AM/FM stereo radio circuit
![Philips](/logo/Philips.png)
Philips Electronics
Speech and loudspeaker amplifie IC with auxiliary inputs/outputs and analog multiplexer
![ST-Microelectronics](/logo/ST-Microelectronics.png)
STMicroelectronics
AUDIO CELLULAR MATRIX
![UTC](/logo/UTC.png)
Unisonic Technologies
STEREO AUDIO AMPLIFIER
![ST-Microelectronics](/logo/ST-Microelectronics.png)
STMicroelectronics
VIDEO SWITCH
![ETC](/logo/ETC.png)
Unspecified
Tone Ringer IC (14-Pin Plastic Package TO-116)