Re: Chroma/Luma (or s-video) Problems on 128DCR

From: J. Alexander Jacocks <jjacocks_at_gmail.com>
Date: Thu, 3 May 2018 13:26:55 -0400
Message-ID: <CAF-r0Y1F9W9ars-4A2v55js-R7u-LJpWNO9p-_Ha=2K0TPhT6A@mail.gmail.com>
Bill,

Indeed, it would, but my display is on using vintage machines with modern
peripherals.

So, unfortunately, I can't use my 1702 or my 1080.

- Alex

On Thu, May 3, 2018 at 1:10 PM, Bill Degnan <billdegnan@gmail.com> wrote:

> ALex,
> For your exhibit, why not use a vintage display anyway?  Would it be
> easier to adapt to a CBM display rather than the other way around, given
> you have two weeks left?
> b
>
> On Thu, May 3, 2018 at 11:50 AM, Gerrit Heitsch <gerrit@laosinh.s.bawue.de
> > wrote:
>
>> On 05/03/2018 05:17 PM, J. Alexander Jacocks wrote:
>>
>>>
>>> If this is the case, as you suspect, then I think that maybe we should
>>> work on a general-purpose Commodore 64/128-to-LCD circuit.  I suspect that
>>> all that would be needed would be to amplify the chroma signal.
>>>
>>
>> The chroma output of the C64 is already too strong though. With some
>> displays you have to add a 330 ohm series resistor to the chroma signal to
>> get a stable picture.
>>
>>  Gerrit
>>
>>
>>
>
Received on 2018-05-03 20:02:21

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