TOUCH TONE » T R I M L I N E « WesternElectric / USA (1968)
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Here the keys are illuminated by a LED via the telephone line -
Works well today too - especially when the power is off !
I N S I D E A TOUCH TONE L E D TRIMLINE ...
An OLDER VERSION of the TOUCH TONE TRIMLINE with ROUND KEYS ...
... has a LIGHT BULB instead of the LED and has to be powered by an
EXTERNAL TRANSFORMER like the »PRINCESS« Telephone, but its
LIGHT BULB is D I F F E R E N T ! The DETAIL-PICTURE above shows
Light Bulb and Holder ( after removing Cover-Plate & Reflector ).
R E M A R K :
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The keyboard of the O L D TRIMLINE is sensitive to the polarity
of the incomming wires. If necessary, exchange the ( RED, GREEN )
wires either in the outlet or in the telephone.
Have a look at the DIAL Version ...
Henry Dreyfuss (1904-1972), a celebrated industrial designer, gave
the 302, 500, PRINCESS & TRIMLINE their style - He also designed
JohnDeere tractors, Hoover vacuum cleaners, and streamlined trains.
Historical Remarks ...
The LETTERS ON THE DIALER are for MEMORIZING TELEPHONE NUMBERS ...
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1 4 = G H I 7 = P R S 0 = Operator
2 = A B C 5 = J K L 8 = T U V
3 = D E F 6 = M N O 9 = W X Y
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EXAMPLE: Dial A-T-L-A-N-T-I-S = 28526847 ==>> »ATLANTIS« Hotel
impressum:
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© C.HAMANN http://public.BHT-Berlin.de/hamann 09/11/07
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