Question about Cobra 148 GTL 120-Channels Base CB Radio
They are the small square metal cans with ferrite slugs inside, there are two larger coils at the rear of the circuit board filled with wax...you need to dig out the wax in these coils before adjusting
plus one of the cans is also waxed.WARNING turn these ferrite slugs WITH GREAT CARE AND NOTE THEIR POSITION before
starting as you will be attempting to tune a set with out radio
bench test gear...ALSO there are about 12 trimpots (TRIMMING
RESISTORS) thet set the voltage/current" DO NOT SHIFT THESE FROM THE POSITION THEY ARE IN !!) you can however moove them back and forth BUT RETURN THEM TO THEIR ORIGANAL POSITION (mark with a fine felt pen off the
wiper and onto the carbon track) as these sets are old you still have a chance ? but they have a LARGE number of electro caps
that over the years dry up inside and cause all sorts of problems.
CHEERS & GOOD LUCK FLYINGFOX@PEOPLE.NET.AU
Posted on Jun 22, 2008
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Posted on Jan 02, 2017
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