16 Nov
2007
16 Nov
'07
8:08 p.m.
--- Gordon JC Pearce <gordonjcp at gjcp.net> wrote:
On Thu, 2007-11-15 at 23:02 -0600, Jim Leonard
wrote:
handle the intensity bit
Not likely the intensity bit was handled then. Yes
it's seemingly no problem to convert ttl levels to
ntsc or whatever.
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Alexis wrote:
> There's a line of chip from Analog Devices,
AD273/AD274/AD275 and
others,
> which will convert from RGB to NTSC/PAL. It
gives composite and split video
> outputs. They're in the US$5 range.
Perhaps this
could be used with my
previous
circuit that converts TTL to analogue?
Possibly, but I'm still not sure that it would of CGA (RGBI).
We made a bodge cable for RGBI to analogue RGB.
It's just some
resistors, really.