Date   : Wed, 18 Aug 2010 01:56:51 +1030
From   : station240@... (paul aslin)
Subject: colour crystal adjustment in BBC master

None of mine have that link fitted, I wish they did. Anyway looks like I 
need to replace VC2 but as I said I have no idea what to replace it with.
Its listed as 5.5 to 40 pF, which is the problem as the closest I can find
is 8.5-40pf and 5-30pf, its guess work as to which would actually work.

> Date: Tue, 10 Aug 2010 13:47:22 +0100
> From: acorn@...
> To: bbc-micro@...
> Subject: Re: [BBC-Micro] colour crystal adjustment in BBC master
>
> Regarding getting colour out of a Master, some models (later ones if my
> memory is not playing up) just need a link making in the same fashion as
> you would do to a later B's, from memory Link 11.
>
>
> Andy.
>
>
>
> paul aslin wrote:
>> Is it just my bad luck or is the adjustment (VC2) for this crystal rather
fragile ?
>>
>> The one in my latest acquisition doesn't seem to do anything and then
I noticed a layer of plastic inside had broken away. Any ideas as to what
to use for a replacement, I couldn't find anything with the correct range
last time I looked.
>>
>> What I'm doing is connecting the video input (vi) of the modulator to
a phono plug. It should product a colour picture but I get nothing. I also
tried the 470pf capacitor mod, didn't work either.
>>
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>>
>>
>
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