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How Can I Drop DC Voltage?

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markrvp:

Thanks everybody.  Here is the Radio Shack LM317T adjustable-voltage regulator.



How do I wire it in?  What resistors do I use (and where do I solder them in)?

btoddkelley:

Thanks you Druin for catching that. It is UNREGULATED supplies that drop under load. So much for becoming an EE!

Todd

ShinAce:

If you want to use a regulator to get 6 volts, you should have at least 8 volts on the input.

In your case, the easiest would likely be a diode or 2 in series.

Druin:

Yeah I just looked up Texas Instrument's data sheet on the 317 and the recommended input voltage is at least 3 volts higher than output, so either switch the adapter to 8v or higher up to 37 volts, or just try some diodes in series.

shadowdrak:

It wasn't exactly clear to me from the post, are we talking about a regulated or unregulated supply?

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