tj@XN.LL.MIT.EDU (Thomas E. Jones) (03/20/90)
I need a black/white video camera digitizer for an IBM/PC compatable computer. I need as much resolution as I can get, and am looking for a low cost item. DAK sells a board for $169 that only has 256x256 resolution, but I'd like more. I've seen a small device with only about 4 or 5 ICs that can connect to your parallel printer port. The guy who was selling these wanted $110 for it, and he scraped off the IC markings on all the devices he made so you couldn't know how it works. It took 10-20 seconds to acquire, but it could take the full NTSC resolution. He wouldn't give any information to interface to it directly, you had to use his software. This looks like an item that could be from an electronics magazine project article. Does anyone know of any construction articles for video digitizers? I'm sure one of the chips is an LM1881 (or whatever that National Sem. video sync signal chip is, but the rest can't be that difficult to make up. Anyone know anything about this item, or an alternate source for video digitizers? - Thomas E. Jones tj@xn.ll.mit.edu -- tj@xn.ll.mit.edu or tj@ll-xn.arpa (one of these should work) Thomas E. Jones, home (617) 924-8326 work (617) 981-5093