Roberts Radio C9950 - Manual (Page 7)

If you need any further advice, please call our Technical Helpline on
0208 758 0338 (Mon-Fri)
6
Using headphones (not included)
Headphones or earphones for use with your C9950 should be stereo and
fitted with a 3.5mm stereo jack plug. Insert the headphone plug into the
socket located on the front left side of your cassette recorder. When
the headphones are plugged in the loudspeaker is automatically
disconnected.
Using the AC adaptor
Insert the adaptor plug into the DC socket on the right side of your
cassette recorder. Plug the adaptor into a standard 13A mains socket
outlet. Whenever the adaptor is used the batteries are automatically
disconnected.
The AC adaptor should be disconnected from the mains supply and your
cassette recorder when not in use.
We would recommend for economy that the C9950 be used via an AC
adaptor whenever possible with battery operation for occasional or
stand-by use only.
Cassette Tapes
High quality 90 min (C90) tapes are recommended for use in your
cassette recorder. In tests these provide a balance between maximum
recording time and prolonged tape life. Audio cassette tapes are available
up to 120 minutes in length, however the tape material is thin and may
stretch or break during recording or playback and are not recommended
for use with your cassette recorder.