? on reading dmm

[donald stringer]

I am trying to measure some ldr. f I set the range to K and it reads something like .561 that would be 561k or 561,000. If I set it to M [megohm the decimal point would move but the numbers would be similiar.

[brett]

Hi
In the kohms range .561 usually means 561 ohms.

[KerryF]

^-Yea.  .561K= 561 ohms

[donald stringer]

upon reading some ldrs from radio shack, in the light the resisance drops and in the dark the resistance rises [in some over 1 meg.] this is what they are suppose to do right. the more light the more resistance drops the more the circuit turns on. In this case it would be the oscilator part of an tremolo.

[343 Salty Beans]

upon reading some ldrs from radio shack, in the light the resisance drops and in the dark the resistance rises [in some over 1 meg.] this is what they are suppose to do right. the more light the more resistance drops the more the circuit turns on. In this case it would be the oscilator part of an tremolo.

That's right. LDRs are used in optical trems, compressors, and limiters...and if you mount them on the outside of a box in place of a pot, they become a nifty noisemaker too