05 September 2008, 18:38 | #1 |
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Cloning the Vortex GoldenGate Monitor Master...
The Monitor Master offers automatic monitor=switching between an ISA VGA and the Amiga video signal... The device is fairly simple to clone , but I worry that the TI chip next to the yellow switch has protected content... can someone confirm this? It has the TI logo and 234 302K sn74S157N , a Quadruple 2-Line to 1-Line Selector/Multiplexer
I have no idea what it does, I just opened mine in order to actually see if it can be done... someone else will build the clones |
05 September 2008, 20:28 | #2 |
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no clue, but found a datasheet:
http://www.datasheetcatalog.net/de/d...N74S157N.shtml |
05 September 2008, 22:41 | #3 |
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It's a simple TTL logic chip.
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05 September 2008, 22:47 | #4 |
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05 September 2008, 23:10 | #5 |
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@keraopi
Hello my friend, yes it is a std off the shelf TTL chip, no programming required & replacement can be dropped in TC |
06 September 2008, 03:55 | #6 |
I hate potatos and shirts
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And better: lots of equivalents! the piece is a TTL 74S157, so any 74 or 54 (military grade) with the middle letters S, F or LS will work.
Examples: 74LS157 54S157 54F157... |
06 September 2008, 09:50 | #7 |
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excellent news then!
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03 July 2011, 22:21 | #8 |
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Yes, I know this is an old thread, but has anyone tried to reproduce Monitor Master?
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01 September 2017, 17:31 | #9 |
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Very old thread, but I'm in the process of cloning the Vortex Monitor Master...
Soldering one as we speak... :-) |
07 September 2017, 03:37 | #10 |
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Is this somehow better than Ratte's Auto Switcher? It sounds very similar that the auto switching is serial activated, but I think Ratte's can also use Parallel, never used that part though.
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17 January 2021, 17:46 | #11 |
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How does someone get their hands on one of these clones?
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17 January 2021, 23:10 | #12 |
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Cameraman, on amibay
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24 February 2021, 23:40 | #13 |
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