TTL RGB ==> PC
doc at mdrconsult.com
Sat Nov 17 18:45:04 CST 2007
Chris M wrote:
> --- Chuck Guzis <cclist at sydex.com> wrote:
>> On 17 Nov 2007 at 10:22, Gordon JC Pearce wrote:
>>> >From memory, and it was a while ago, we had three
>> voltage dividers to
>>> knock the TTL outputs down to .7v, and then three
>> more resistors from
>>> the intensity bit to the analogue outputs.
>>> There may have been some diodes there.
>>> The sync combiner was a couple of resistors and a
>> It can also be done with a 74LS06 OC inverter and a
>> few resistors. A
>> fancy version might use a '221 one shot to adjust
>> sync pulse position
>> and width. I think the one I used to drive an RGB
>> monitor with SOG
>> from a VGA output used a 74HC86 XOR and was
> what would be nice if there was an area for the group
> to act as a *scratch pad*. So some of this stuff could
> go down *on paper*. Thoughts?...
Something like this?
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