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Filling in the blanks
There are several more things you need to knowandthis section
covers them.
Whatto do when you reachthe end of the tape spool. Your
TK20 is designed for use with twin track tape. In other words,
recording takes place on one halfof the tape only as it runs past
the Recording Head. This means that when you reach the end
of yourfirst spool (over an hour's continuous recording per 1,200
ft. spool) you still have the same length left on which to record.
Changing over to the other track is very simple. Free both the
spools on their spindles, lift them up to free the tape from the
sound channel and turn both spools right over so that the right-
hand spool becomesthe left-hand spool. Fit onto spindles. This
should mean, that once again your full spool is on the left and
your empty spool on the right. Thread the tape through the sound
channel and you are ready to record again.
Automatic Stop. Each end of the Grundig tape in your TK20
is fitted with special metallised strips which cause the driving
motor to cut off automatically when the metallised strip passes
through the recording channel.
Whenthe tape on your TK20 has been stopped in this way 2¢ is
necessary to set the Selector Switch (C) to O in order to switch the
motor ON again.
How to fast wind forwards. You havealready used the fast
wind backwards and are familiar with it. Sometimes, however,
when you want to select a section of previously recorded tape
towards the end of a spool you will need to use aforward fast wind.
All you haveto do for this is to turn the Selector Switch (C) via
position » and e (intermediate stop) to -.
How to play tape recordings back through your Radio.
If you wish to do this, connect a Grundig Spare Lead from the
socket marked & in the back of the TK20 to the P/U Input
sockets on the back of your Radio or Radiogram and play back
in the normal way.
Editing the Tape. If you wish to keep only certain parts of your
recordings on the tape, any part of it can be cut out; the two ends
of the tape remaining on the spool can easily be rejoined with
a special adhesive tape. The part required should becut off with
an oblique cut from the main body of the tape and stored. To
UI
stick the loose ends together, line up the cut edgesof the tape,
makingsure that the jointis straight and that the tape does not
form a kink. Stick approximately an inch of the adhesive tape
over the back of the tape and press well together. Afterwards
trim off the excess adhesive tape with scissors.
Keeping Recordings. A piece of recorded tape or a whole reel
can be stored indefinitely with noill effect to the recording, but
you will be well advised to store recorded tape carefully, and to
identify it. You will find that Grundig tape boxes have ample
space on which to markthetitles.
How to record a Telephone Conversation. The Grundig
Telephone Adaptor[see page 15] makes it possible to record both
sides of a telephone conversation. Theplug of the Adaptorfits into
socket [fin the back panel of the TK20 and the rubber disc
[slightly moistened] is pressed on to the telephone in the best
position. Different types of telephone each require a different
position; this is how to locate it.
(1) Plug the Adaptor into the socket [J and switch on with
the TK20so placedthatit is at least 44 ft. from the telephone.
(2) Press Input Selector Button [¥ and turn Volume Control
(B) to a convenient level.
(3) Lift the telephone handset sothat the dialling tone is heard
and movethe Adaptor slowly round the base of the instru-
ment with the rubber disc just touching. The Magic Eye
will flutter and the dialling tone will be heard through the
TK20 speaker.
(4) When the Magic Eyeregisters its maximum deflection and
the dialling tone is heard throughthe speakerat its loudest
you have found the right position. Fasten the Adaptor at
this point.
In the case of manual exchanges the co-operation of a
caller is necessary to provide a continuous source of sound
in the absence of the dialling tone.
Listening in Privacy. Just connect the Grundig Stethoscope
Earphone [see page 15] to the Output Socket sy of the TK20.
If you find it necessary to erase a tape or a portion of a tape
quickly without actually making a further recording, then this
is what you do:—
Put the full recorded tape on the L.H. Spindle (or ensure that
the part you wish to erase is on the left of the Sound Channel)
Removeall Input Plugs. Set the Selector Switch to Fast Wind
Forward and depress any Input Selector Button (D). As long as
this button is held depressed, all the tape which is now passing
through the Sound Channelatfast speed is fully erased.
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