Date   : Mon, 14 Nov 2005 13:13:32 +0000 (GMT)
From   : Greg Cook <debounce@...>
Subject: Re: RF Modulator Interference

On Sun, 13 Nov 2005 22:39:26 +0000, Jules Richardson
<julesrichardsonuk@...> wrote:

> Did anyone fiddle with the adjustment cores for coils in the
> modulator? 
> (I think one's accessible through the shielding, the others need the
> lid 
> popping). Just wondered if someone tried that to see if it would cure
> 
> the fault and then adjusted things to far and broke the core.

Seconded.  Don't force the ferrite slug, it won't give much resistance
before it cracks.  Be sure to use a plastic screwdriver.

If that's happened with yours then the tuning will wander as the
ferrite pieces shift around.  They'll also shake with vibrations from
the speaker or a disc drive on the same desk.  I suppose you could fit
a replacement slug, or a replacement modulator if you wanted to repair
it.

Greg Cook
debounce@...
http://homepages.tesco.net/~rainstorm/



               
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