Sony CF-270L Power
The Sony CF-270L requires eight "D" size dry cells in the battery compartment. There is also a socket to provide +12 V DC from a mains adapter. Alternatively, this unit can connect to the mains as well. There was also a Canadian model, which connected to 120 V AC mains. The power consumption of this unit is 10 W.
It is always better to use rechargeable batteries these days, as it is far greener and cheaper.
Transformer
There is also a built-in mains transformer and rectifier circuitry to generate the 12 V DC for the unit.
Fuse Board
There is a 1-ampere quick-blow fuse.
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Sony CF-270LSony CF-270L Inside
Sony CF-270L Tape Transport
Sony CF-270L Mechanism
Sony CF-270L Audio Circuit
Sony CF-270L Radio Circuits
Sony CF-270L Case
Sony CF-270L Power