Just making sure on a component value ID

Thread Starter

Videodrome

Joined Nov 12, 2009
64
hey again folks! have a few trim pots in which i need to decipher the value and figured id post it here than make another thread and waste space. i am listing the complete factory labeling just to be thorough as they appear printed atop the trims packaging. thanks again folks!

POT 1
3006P 504 0210A9
POT 2
3006P 105 0402L6
POT 3
3006P 105 0210H4
POT 4
3006P 205 W6000
POT 5
3006P 205 W8186
 

marshallf3

Joined Jul 26, 2010
2,358
Unless the 504, 105 etc are indicators of value why don't you just meaure them with an ohmmeter?

When you can buy them from Harbor Freight for $2.99 or sometimes $1.99 during one of their very frequent sales it makes no sense not to own one, nor does it make much sense to be experimenting without one.
 

retched

Joined Dec 5, 2009
5,208
I agree. Are the POTs out of the circuit or are they still soldered in?

If you switch your multimeter into OHMS(RESISTANCE \(\Omega\) ) mode, then use one probe on the wiper pin (middle if there are 3 pins) and one on the other pin. (Or either outside pin if there are 3)

Turn the adjustment shaft all the way clockwise, read the meter
All the way counter clockwise, read the meter.

It should go from 0(zero) to something. This 'something' is what you are interested in.
Typical values are:
1k or 1,000 ohms
10k or 10,000 ohms
100k or 100,000 ohms
and
1M or 1,000,000 ohms.

Here is some info on testing them, and using them:
http://www.allaboutcircuits.com/vol_6/chpt_3/6.html
http://www.allaboutcircuits.com/vol_6/chpt_3/7.html

here is a page from MOUSER for the 3006P series of POTs:
http://ca.mouser.com/ProductDetail/Bourns/3006P-1-501LF/?qs=GxOdHD6aiJ5yu%2bcpsoB/dw==
 
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