Thread: 1963ish Western Auto Truetone DC-1454
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Old 12-23-2015, 11:17 PM
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maxhifi maxhifi is offline
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The cathode of the 50C5 will be at around 7.5V, and idle current around 50mA... I would put the LED in series with the cathode and adjust the series resistor until the cathode voltage gets back to around 7 or 8 volts.
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