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Article #7367

TV Descrambler

#7367
From: Cliff Helsel
Date: Thu, 20 Sep 1990 18:42
50 lines
2356 bytes
I found the following instructions in a text file on a bulletin board and
wonder whether this will do what is claimed.

Materials Required:

Radio Shack mini-box	#270-235
1/4 watt resistor, 2.2k-2.4k ohm	#271-1325
75pf-100pf variable capacitor		hard to find?
2 - F61a chassis type coaxial connectors	RS #278-212
12" - No. 12 solid copper wire
12" - RG59 coaxial cable

1. Bare a length of No. 12 guage solid copper wire and twist around a 3/8"
nail or rod to form a coil of 9 turns.  Elongate coil to a length of 1 1/2"
inches and form right angle bends on each end.

2. Solder the variable capacitor to the coil.  It doesn't matter where you
solder it, it still does the same job.  The best place for it is in the center
with the adjustment screw facing upward.

Note: When it comes time to place the coil in box, the coil must be insulated from
grounding.  This can be done by crazy-gluing a piece of rubber to the bottom
of the box, and securing the coil to it.

3. Tap (sp?) coil at points 2 1/2 turns from ends of coil and solder to coaxial
chassis connectors, bringing tap leads through holes in chassis box. Use as
little wire as possible.

4.  Solder resistor to center of coil and grouond other end of resisotr to
chassis box, using solder lug and small screw.

5.  Drill a 1/2" diamater hold in min-box cover to permit adjustment of the
variable capacitor from the outside.  Inspect the device for defects in
workmanship and place cover on mini-box.  Tighten securely.

6.  Place device in line with existing cable on either side of the converter
box and connect to television set with the short piece of RG59 coaxial
cable.  Set television to HBO channel.

7.  Using a plastic screwdriver (non-metallic) adjust the variable capacitor
until picture tunes in.  Sit back, relax, and enjoy!!!

------------------------------------

If it will do what is claimed would anyone be willing to answer some questions
about the construction of this device.

Cliff Helsel
hcliff@wybbs.mi.org
or hcliff@wybbs.UUCP
Technical Details
Message-ID: <477@wybbs.mi.org>
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From: hcliff@wybbs.mi.org (Cliff Helsel)
Newsgroups: sci.electronics,rec.video
Subject: TV Descrambler
Message-ID: <477@wybbs.mi.org>
Date: 20 Sep 90 18:42:47 GMT
Organization: Consultants Connection,  Jenison MI
Lines: 50