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Everything You Need — Parallax Forums

Everything You Need

ajwardajward Posts: 1,130
edited 2012-03-05 09:02 in General Discussion
Went to the local 'Shack today for a few goodies. One of the items was a 10K, 15-turn trim pot. Got home and was reading the package. In their generosity, Radio Shack included the =adjustment screw=. I breathed a sigh of relief, because I'm sure the Trim Pot Adjustment Screw store is closed on Sunday. :-)

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IMAG0340.jpg
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Comments

  • GadgetmanGadgetman Posts: 2,436
    edited 2012-03-05 04:12
    They're closed on saturdays, too...

    They only sell those screws in packs of 1000, and their 'sample packs' contains only obsolete sizes and types.
    (Who uses a T1 external Torx? and the 'One way' types is just plain silly.)
  • RS_JimRS_Jim Posts: 1,768
    edited 2012-03-05 05:04
    My theory is that to write product descriptions for Radio Shack, you must know nothing about electronics!
  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    edited 2012-03-05 06:51
    I'm sure the adjustment screw mention was put there to distinguish those trim pots from the ones that come pre-programmed and write-protected.

    -Phil
  • RS_JimRS_Jim Posts: 1,768
    edited 2012-03-05 07:23
    Phil Pilgrim (PhiPi) wrote: »
    I'm sure the adjustment screw mention was put there to distinguish those trim pots from the ones that come pre-programmed and write-protected.

    -Phil
    Lol!
    RS_Jim
  • skylightskylight Posts: 1,915
    edited 2012-03-05 08:05
    Ah but does the screw turn both ways??
  • bill190bill190 Posts: 769
    edited 2012-03-05 08:12
    RS_Jim wrote: »
    My theory is that to write product descriptions for Radio Shack, you must know nothing about electronics!

    I used to work at a large company which developed business software. And we had a "documentation department"...

    There were "writers" in that department who wrote the instruction manuals for our customers. And not a one of them understood computers or software!

    These same writers work at newspapers and write Hollywood movies.

    (BTW - Parallax documentation is very well written, an exception to the above!)
  • mindrobotsmindrobots Posts: 6,506
    edited 2012-03-05 08:26
    OK, I'll offer this up as a free project idea for anyone with some spare time. Instead of those pesky numeric display on DVMs now days, how about a graphical Ohm display. It would convert the resistance being measured to a set of colored (or coloured) bands on either a set of RGD LEDs or probably better yet, on a mini color LCD. That way instead of seeing 221.6 ohm, you'd see RED-RED-BROWN, like the world should be!!

    Talk about a useful tool and a good use for a micro-controller!! :smile:
  • ercoerco Posts: 20,259
    edited 2012-03-05 08:58
    Phil Pilgrim (PhiPi) wrote: »
    I'm sure the adjustment screw mention was put there to distinguish those trim pots from the ones that come pre-programmed and write-protected.

    -Phil

    Those 10-turn trimpots do have a WORM gear inside. Write Once, Read Mainly ... ?
  • ercoerco Posts: 20,259
    edited 2012-03-05 09:02
    mindrobots wrote: »
    OK, I'll offer this up as a free project idea for anyone with some spare time. Instead of those pesky numeric display on DVMs now days, how about a graphical Ohm display. It would convert the resistance being measured to a set of colored (or coloured) bands on either a set of RGD LEDs or probably better yet, on a mini color LCD. That way instead of seeing 221.6 ohm, you'd see RED-RED-BROWN, like the world should be!!

    Talk about a useful tool and a good use for a micro-controller!! :smile:

    Interesting...

    TTYTT, one of my older Radio shack bench meters has an auxilliary B/W LCD bargraph beneath the digital display and it is quite handy.

    Plain old analog multimeters (needle gauges for you young-uns) are still quite useful and have their place.
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