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Station Video Mux: Difference between revisions
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→32 x 4 replacement: Found more chips in the project box
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All the parts were sourced as free samples from [http://www.maxim-ic.com/ Maxim] under various psuedonyms since the MAX458 crosspoints were actually worth about £40 each. | All the parts were sourced as free samples from [http://www.maxim-ic.com/ Maxim] under various psuedonyms since the MAX458 crosspoints were actually worth about £40 each. | ||
To avoid the obsolescence problem that the Breaker 88 unit suffered, there are in fact two muxes. A spare circuit board and set of | To avoid the obsolescence problem that the Breaker 88 unit suffered, there are in fact two muxes. A spare circuit board and set of 7 chips are in storage in case of failure, and the controller is made using a cheap reprogrammable micro controller. Some 885 lines of assembler code are all that were required in the micro to perform all of its control functions. | ||
==Today== | ==Today== | ||