55 lines
2.0 KiB
Plaintext
55 lines
2.0 KiB
Plaintext
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*
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MEMBER NAME: PURPLE *
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*
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***********************************************************
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How to Construct a Purple Box.
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------------------------------
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The Purple Box is very simple to construct. It takes only six components
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and a PC board if you want. The Purple Box is a telephone hold button. It
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will allow you to switch phones very easily.
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A red LED indicates when a party is on hold and is automatically
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extinguished when either party releases the line.
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To install your Purple Box, remove the telephone case and locate the red
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and green wires. From the green wire, make a connection to L1 and from the
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red
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wire a connection to L2.
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To test the circuit, call a friend and then while pressing the push
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button, hang up the phone. As soon as the phone is on the hook, you may let
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go
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of the push button.
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Parts:
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D1 = Light Emitting Diode (LED)
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D2 = 1N4003 Diode
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R1 = 820 ohm 1/2 Watt
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R2 = 1K ohm 1/2 Watt
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S1 = N.O. Push Button S1
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SCR1 = C106B1 __|__
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+--o o---+----R1----+
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+--------LED--R2---+-------a--+--c--D2---+
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|L1 SCR----/ |L2
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To Green To Red
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The SCR is a three prong IC. The a,g, and c tell you what pins to use. The
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"g" pin is the one on the left if you look at the numbers.
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Have Phun,
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The Flash
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Downloaded From P-80 International Information Systems 304-744-2253
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