> My favourite project was the video camera he made from a 64kb DRAM chip
My first job in computing was as a bench repair engineer for shop-returned Sinclair Spectrums. (Pretty busy time since they had a huge failure rate mainly due to an under-specified transistor in the DC-DC converter).
Since we had plenty of components available, I had a go at doing this by lifting the lid of a ceramic 4164 (might have been a 4116) with a soldering iron and hacking together a bit of stripboard to plug into the expansion bus of a Spectrum.
It worked a treat with a few frames per second refresh rate. (I had to remap the non-sequential ram lines in software to get a sensible image.)
My first job in computing was as a bench repair engineer for shop-returned Sinclair Spectrums. (Pretty busy time since they had a huge failure rate mainly due to an under-specified transistor in the DC-DC converter).
Since we had plenty of components available, I had a go at doing this by lifting the lid of a ceramic 4164 (might have been a 4116) with a soldering iron and hacking together a bit of stripboard to plug into the expansion bus of a Spectrum.
It worked a treat with a few frames per second refresh rate. (I had to remap the non-sequential ram lines in software to get a sensible image.)