best ZX80 comp mod?
best ZX80 comp mod?
whats the best ZX80 comp mod board these days?
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Re: best ZX80 comp mod?
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Amp
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ZX81 Chip Pin-outs
ZX81 Video Transistor Amp


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Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb

Spring approaching...
Re: best ZX80 comp mod?
Looks a bit similar to the one I’ve got inside my ZX81. Might have a look at that one and see if I can make it up on breadboard.
Re: best ZX80 comp mod?
There no urgent need for a comp mod.
Unlike the ZX81 the video out of the ZX80 is strong and sturdy and can be directly used as video out.
Most monitors will give a good picture when directly connected to the modulator input.
In case your monitor is low quality you might need to add the back porch and my advice is to ask Pokemon from ginger Electronics what he can offer.
Unlike the ZX81 the video out of the ZX80 is strong and sturdy and can be directly used as video out.
Most monitors will give a good picture when directly connected to the modulator input.
In case your monitor is low quality you might need to add the back porch and my advice is to ask Pokemon from ginger Electronics what he can offer.
In theory, there is no difference between theory and practice. But, in practice, there is.
Re: best ZX80 comp mod?
The handy thing with the ZX8-CCB video board is the ability to have inverse mode which is something I prefer with my ZX80.
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- 1024MAK
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Re: best ZX80 comp mod?
As with many things, there are multiple ways of doing something.
Yes, there is a relatively simple modification to get composite video instead of using a modulator.
And yes, there are other 'modules' that can be used.
My earlier answer was to the specific question that was asked.
Mark
Yes, there is a relatively simple modification to get composite video instead of using a modulator.
And yes, there are other 'modules' that can be used.
My earlier answer was to the specific question that was asked.
Mark
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Amp
Standby alert 
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Spring approaching...
ZX81 Chip Pin-outs
ZX81 Video Transistor Amp


There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb

Spring approaching...