100K Ohm 10 Turn Variable Resistor, Linear Taper

100K Ohm 10 Turn Variable Resistor, Linear Taper
Stock Number: 32081 VR
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Detailed Description

10 turn wirewound, variable resistor rated: 100K Ohm +- 5%, 2W. Mounts in 5/16in. hole. 5/32in. Dia (4mm) X 1/2” long shaft with screwdriver slot. Includes mtg. nut.
L: 2-1/4in. O/A Dia: 7/8in. WT: .05

California Proposition 65 Warning WARNING: This product can expose you to chemicals including Nickel which is known to the State of California to cause cancer and which is known to the State of California to cause birth defects and/or other reproductive harm. For more information, go to www.P65Warnings.ca.gov

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Good price for a 10 turn, & 10 turns make great bias pots!
These are great for those precise adjustments, like biasing tube amps, or a fine adjustment for a function generator. Okay, a bias pot for a Fender amp is 10K, and for a Marshall amp it is 22K. No problem! Give yourself some extra leeway! Go with 12K or 15K to dial it in with better range and better control. Remember 1/ 1/R + 2/R = R, so for a 15K pot put an 18K resistor in parallel with this 100K, and use it as is. No need to use a 10K at all! You will get around 15200 ohms, and the linearity is affected to such a tiny extent, it wont matter. For a Marshall pot, lets try 30K! Put a 47K in parallel with this and you will get about 32K. If you want 22K put a 30K in parallel with this. Use a 33K for 25K. The 10 trun means dialing in that bias voltage will be really precise,. and if it gets bumped it wont get knocked too far out of whack! Lets say you want to put a fine control in a function gen. Use the 10K and put it in series with the coarse adjustment.
- Seth Burgin, AZ

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