100k pot + 150k resistor = 250k pot? Slider pot

[JFrankParnell]

I saw this mentioned somewhere else, not sure if its correct or if it applies to guitars. I'm researching slider pots and having a hard time finding 250k or 500k in the sliders. So, can you just add a 150k resistor to a 100k slider pot e.g. www.mouser.com/catalog/specsheets/TW-700139.pdf ?

I welcome any thoughts or links pertaining to slider pots, thanks.
J

[flateric]

well you can but then in series the range would be 150 - 250k, you could never get it lower than 150k could you? I came across an article somewhere showing pot lugs with resistors soldered across them, maybe something doable in parallel - I'll have a root round unless someone posts here first

[flateric]

check this out:
www.geofex.com/Article_Folders/potsecrets/potscret.htm
more about tapers really, I'll come back later when I've found what I'm after.

[flateric]

www.projectguitar.com/tut/potm.htm
more good stuff
I reckon of you want 0 - 250k range you need a 500k slider and a 500k resistor in parallel with it. That way the range will go from 0 to 250k.
www.1728.com/resistrs.htm

[JohnH]

Recently I searched the entire world for slider pots to replace those on our mixer. I needed 60mm 25k and 100k audio taper, and could not find either. For the 25k I found a pack of 50k audio taper, and put 47k resistors in parallel with them and they work fine. I still dont have a 100k solution though the old ones in place are not too bad.

One thing to bear in mind with sliders is that the slot is open to the internal tracks, so dust, sweat and beer can get in

John

[JFrankParnell]

I reckon of you want 0 - 250k range you need a 500k slider and a 500k resistor in parallel with it. That way the range will go from 0 to 250k.
www.1728.com/resistrs.htm

Ah, which incidentally means that if you only have a 500k pot (rotary, slide, whatever) then you can make it a 250k pot by adding a 500k res. to it?

Lol, JohnH, "dust, sweat and beer" isnt that an old band?

[JFrankParnell]

Oh, and these are prolly too short for your mixer, but:
cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=290279471288&ssPageName=ADME:X:RTQ:US:1123
and, if you want i'll send ya my slider bookmarks, but you probly have most of 'em or similar.

Well, for whoever: Good luck with these, lotsa dead ends, but in the long run, there's still time to change the road youre on.

www.futureelectronics.com/en/Search.aspx?dsNav=Ny:True,Ro:0,Nea:True,N:474-4294918413-4294938399
www.wellgainelectronics.com/alpsslidevr50kbtravel20mm.aspx
www.wellgainelectronics.com/stackpole220286-3250k.aspx
www.surplustraders.net/a/0217.shtml
www.ctscorp.com/components/Datasheets/448.pdf
www.etronic-parts.com/product_info.php/info/p572_Alpha-slide-potentiometer--60mm--linear-250K.html
search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=CT2314-ND
www.potentiometer.com/pdf/BITC_psG.pdf
www.potentiometers.com/pdf/BITC_PS.pdf
www.mouser.com/catalog/specsheets/TW-700139.pdf
www.mouser.com/catalog/636/672.pdf
cgi.ebay.com/5-pcs-panasonic-30mm-slide-pot-110k-500k-EWAN-series-/290279471288?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item43960138b8

These last ones, the ebay link, look pretty good for guitars, I'll try em.

[newey]

Did someone ask for slide potentiometers in 250K or 500K resistance?

250K 60mm linear slide potentiometer

However, bear in mind it's 88mm in total length- approx 3.4 of the King's inches . . . maybe a bit big for guitar use.

Alpha 500K 45mm Linear Slide Potententiometer

The 500K version is only 2.87" total length, with a 45mm travel. Perhaps more suitable for guitar use. Note that these are both linear taper pots.

Where to find knobs to fit is anyone's guess.