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Bottlehead Forum Welcome! Need support, you got it. Or share you ideas and experiences. |
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Bottlehead Forum Welcome! Need support, you got it. Or share you ideas and experiences. |
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In Reply to: LED indicator light for Quickie posted by bainjs on September 21, 2009 at 02:49:41:
The heater supply is dual 1.5v (they float so each tube needs its own). That's not enough voltage to power an LED.
The high voltage supply is not switched, so an LED across it would drain the battery and stay lit until the battery died. Not a good idea! If you added a switch, then even 1mA drain (a fairly dim LED) will still reduce battery life 20%.
However ... just put the LED in series with the high voltage supply! That way it will draw 4mA when operating, and only lose 1.5-2v out of the 36 volt nominal power supply.
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Follow Ups
- RE: LED indicator light for Quickie - Paul Joppa 12:06:22 09/21/09 (5)
- RE: LED indicator light for Quickie - bainjs 00:49:07 09/22/09 (1)
- RE: LED indicator light for Quickie - Paul Joppa 22:01:11 09/22/09 (0)
- RE: LED indicator light for Quickie - bainjs 15:34:58 09/21/09 (2)
- RE: LED indicator light for Quickie - Jim_R 16:21:09 09/21/09 (1)
- RE: LED indicator light for Quickie - bainjs 16:23:33 09/21/09 (0)
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