Date   : Wed, 24 Oct 2007 12:58:36 +0200
From   : anders.carlsson@... (Anders Carlsson)
Subject: OT was Re: UM1233 TV modulators...

Fragula wrote:

>> I recently modified my ZX Spectrum 48K to output composite video
> Ohh.. I guess you probably don't want me to tell you that compost is
> available on the edge connector then. :-}

I already knew that, but since I barely own a TV capable of displaying a UHF 
signal from an old home computer anymore, I thought I could just as well 
reuse the existing phono connector and get bright and shiny composite video 
from it. Drilling a hole and adding another connector seems a bit too much 
work for my taste, but I knew it is possible.

I thought the ZX Spectrum edge connector had a regular RGB signal, perhaps 
at TTL level like the Beeb, but you mention it is a YUV signal? Never mind, 
it is kind of off-topic for this list, although last time I opened my Model 
B, I noticed the RF modulator looks the same way as in the Speccy. It 
already has some "funny" connector with composite video, but I suppose it is 
a B/W signal just like on the Electron and Master Compact? Doing the same RF 
modulator modification, I expect I could get colour composite video. On the 
other hand, I'm using the RGB output, preferrably via SCART.

Regards

-- 
Anders Carlsson