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For a while now Icollected them for any possible parallel work. Like converting a clock radio toa car clock. Junk the transformer, regulate the autos 14.5V to 12V, connectwhere the transformer was to ignition. Regulate 14.5V to 9V, connect where the9V battery was to constant power. Use a much smaller LED display likefrom an old DVD player, use ribbon cable to the display. (The clock radio maybe too big to fit close, use a longer ribbon cable)