Why is there no good scandoublers to be found?

[Tigger]

I'm wondering whether there is enough of a market to put the one I did in production.  At this point of course the 23 pin connectors are probably an issue to find, but everything else should be relatively easy even if I had to replace a component or two with something not EOL.
    -Tig

[Tigger]

bubba wrote:
Wow, congrats on building one.  What are the specs?  Can it do 24-bit color and non-15khz modes?  I'm sure the design could be refined by an electronics manufacturer for production.

I work for one of the largest electronics manufacturer (in fact we used to make most of the SMT amigas) so I'm not sure there is alot to refine.  

I'm not a electrical engineer, but these circuits look pretty simple.  I took a look at the picture of the circuit board for the DCE scan doubler and could easily google for the chips on board: a 6-bit ADC from Phillips, a 24-bit DAC, ram chips, and one mystery chip.

Depending on how they did it, some kind of FPGA to handle non-15kHz screens or a programmed PAL to do much the same thing.
15 pin to 15 pin idea is fairly clever, that would get rid of one of the possible snags, though one of the big part vendors used to stock 23's forever so that might not be an issue.  
   -Tig

[Tigger]

BenShep wrote:
Tigger - you could do an internal one for the a1200, which wouldn't need a 23 pin connector (or an external casing)?

Yeah I could, the only issue with that is that I have now cut the market to only 1200's an external could work for every amiga on the planet.  Lots of my 500's, 2K, 3K & 4ks out there and even CD32's that would probably like to run on a VGA moniter.
    -Tig