Date   : Fri, 11 Apr 2008 07:19:38 +1000
From   : bdevries@... (Bob Devries)
Subject: Monitors

There's a man in Florida USA, who is making and selling a VGA adaptor for 
the Tandy Colour Computer 3. His name is Roy. email him at RJRTTY@... 
for further details.
--
Regards, Bob Devries, Dalby, Queensland, Australia

Isaiah 50:4 The sovereign Lord has given me
the capacity to be his spokesman,
so that I know how to help the weary.

website: http://www.home.gil.com.au/~bdevasl
my blog: http://bdevries.invigorated.org/

----- Original Message ----- 
From: "silvercreekvalley" <silvercreekvalley@...      >
To: <bbc-micro@...               >
Sent: Thursday, April 10, 2008 10:07 PM
Subject: Re: [BBC-Micro] Monitors


> I've had quite a bit of experience with 'scan
> doublers'
> etc, and it can be tricky to get a good picture. I
> tried
> several different makes of scan-doubler with the BBC
> and most had issues, ie there was a noticable flicker,
> or
> distortion of the picture, or problems with colours.
>
> In the end I found a hand made device intended for a
> Tandy
> Color computer which worked a treat, even text was
> readable
> and very usable in the higher res modes. Unfortunately
> this
> device seems no longer available (I have tried).
>
> The device required H & V syncs which I took from the
> video
> chip in the BBC, as well as the regular RGB signals. I
> used
> 3 variable resistors to get the voltages down to
> around 1.6v
> which the converter needed. Although it worked OK with
>
> the full TTL level voltage, the converters let me
> 'tune'
> the colours correctly as there was some mismatch.
>
> My ongoing mission with the BBC B+ is to connect it to
> a
> KVM. I have the video working OK and now working on
> the PS2
> keyboard conversion via the excellent PS2 converter
> system
> developed by Sprow. I'll let the group know if I
> manage
> to get it all working.
>
> If anyone else has experience with PS2 conversion for
> the
> BBC it would be great to here.
>
> Ian.
>
>
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