Rap 'n Tap
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From: MIKE LEE
Date: 8/25/00
Time: 4:39:42 PM
Remote Name: 24.2.119.221
FUNNY YOU SHOULD ASK, I WAS VISITING A RADIO CLUB MEMBER LAST NIGHT WHO HAS AN AWARD WINNING REBUILT OF A 1916 REPLICATION OF THE TITANIC'S TRANSMITTING AND RECEIVING RADIO SET. THE TRANSMITTER USED A SPARK GAP MECHANISM THAT USED AN ELECTRIC MOTOR THAT WAS CONNECTED TO A 6-7 INCH DIAMETER METAL WHEEL THAT ROTATED AGAINST 4 COPPER BRUSHES. THE RECEIVER WAS BASED ON A NAVY LOOSE COUPLER WITH 10 TAPS OR SO. HE TURNED ON THE SET AND SENT SOME CODE OVER THE TRANSMITTER. HIS COMMENT WAS THE NEIGHBORS HAVE GOTTEN USE TO HAVING THEIR TV'S AND RADIOS INTERFERRED WITH. HE ONLY DOES IT A COUPLE TIMES A YEAR. WITH AN ANTENNA THE RANGE OF THE TRANSMITTER COULD BE 500 MILES OR SO. THE KNIFE SWITCH THAT WAS USED WAS ABOUT 8 INCHES IN LENGTH, 1/8 THICK COPPER. THE BREADBOARD THAT THE PARTS WERE MOUNTED ON WAS ABOUT 3 X 2 1/2 ' FOR THE TRANSMITTER AND 2X3 FOR THE RECEIVER.