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Consumer Electronics by S. P. Bali

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POWER SUPPLIES

Facilities are provided in amplifier circuits for obtaining power supplies for a single-channel preamplifier or FM radio tuner unit. For stereophonic applications, the supply for each channel of the preamplifier can be taken from the power amplifier used with that channel.

A separate power stage can also be used for the preamplifier when it is used with any of the power amplifiers. Physically however, the extra unit may prove an encumbrance and consequently it may be preferable to use the supply stage of the main amplifier to provide the power requirements of the tape preamplifier.

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