{"product_id":"b103-75mm-slide-potentiometer-dual-channel-mixer-fader-b10k-linear","title":"B103 75mm Slide Potentiometer – Dual-Channel Mixer Fader, B10K Linear","description":"\u003cstyle\u003e\n.nznpd{--o:#F57C00;--od:#E65100;--ink:#0F172A;--mut:#5b6573;--line:#E8ECF0;--soft:#F7F8FA;max-width:1120px;margin:0 auto;color:var(--ink);font-family:inherit;line-height:1.6;padding:0 5%;box-sizing:border-box}\n.nznpd,.nznpd *{box-sizing:border-box}\n.nznpd p{margin:0;color:var(--mut);font-size:15px;line-height:1.65}\n.nznpd strong{color:var(--ink)}\n.nznpd__intro{font-size:16px;color:var(--ink);font-weight:500;line-height:1.6;max-width:72ch}\n.nznpd__checks{list-style:none;padding:0;margin:22px 0 0;display:grid;grid-template-columns:repeat(2,1fr);column-gap:26px;row-gap:13px}\n.nznpd__checks li{display:flex;gap:11px;align-items:flex-start;font-size:15px;color:var(--ink);line-height:1.45}\n.nznpd__checks li::before{content:\"\\2713\";flex:0 0 auto;width:21px;height:21px;margin-top:1px;border-radius:999px;background:#FFF3E8;color:var(--o);font-size:12px;font-weight:900;line-height:21px;text-align:center}\n.nznpd__qs{background:linear-gradient(170deg,#FFF9F3,#FFF1E6);border:2px solid #FCE0C6;border-radius:16px;padding:22px}\n.nznpd__qs h3{margin:0 0 16px;font-size:12px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:var(--od)}\n.nznpd__steps{list-style:none;counter-reset:s;padding:0;margin:0;display:grid;gap:14px}\n.nznpd__steps li{display:grid;grid-template-columns:27px 1fr;gap:12px}\n.nznpd__steps li::before{counter-increment:s;content:counter(s);width:27px;height:27px;border-radius:999px;background:#fff;border:2px solid #FCE0C6;color:var(--od);font-weight:800;font-size:13px;display:flex;align-items:center;justify-content:center}\n.nznpd__steps strong{display:block;font-size:14px}\n.nznpd__steps p{font-size:13px;margin-top:2px;line-height:1.45}\n.nznpd__block{margin-top:36px;padding-top:30px;border-top:1px solid var(--line)}\n.nznpd__h{margin:0 0 28px;font-size:1.15rem;font-weight:800;letter-spacing:-.02em;color:var(--ink);display:flex;align-items:center;gap:10px}\n.nznpd__h::before{content:\"\";flex:0 0 auto;width:20px;height:3px;border-radius:2px;background:var(--o)}\n.nznpd__specs{border:2px solid var(--line);border-radius:12px;overflow:hidden}\n.nznpd__spec{display:grid;grid-template-columns:minmax(150px,.7fr) 1fr;gap:18px;padding:12px 16px;font-size:14px}\n.nznpd__spec:nth-child(odd){background:var(--soft)}\n.nznpd__spec span{color:var(--mut)}\n.nznpd__spec strong{font-weight:700}\n.nznpd__included{display:flex;gap:16px;align-items:center;border:2px solid var(--line);border-radius:16px;background:var(--soft);padding:18px 20px}\n.nznpd__qty{flex:0 0 auto;width:46px;height:46px;border-radius:12px;background:#FFF3E8;color:var(--o);font-weight:800;display:flex;align-items:center;justify-content:center}\n.nznpd__included strong{display:block;font-size:15px;margin-bottom:3px}\n.nznpd__uses{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}\n.nznpd__use{padding:13px 14px;background:var(--soft);border-left:3px solid var(--o);border-radius:0 10px 10px 0;font-size:14px;color:var(--ink);line-height:1.4}\n.nznpd__faqs{display:grid;gap:10px}\n.nznpd__faq{border:2px solid var(--line);border-radius:12px;background:#fff;padding:0 16px;transition:border-color .18s ease}\n.nznpd__faq[open]{border-color:#FCE0C6}\n.nznpd__faq summary{list-style:none;cursor:pointer;padding:15px 0;font-weight:700;font-size:14px;color:var(--ink);display:flex;justify-content:space-between;align-items:center;gap:12px}\n.nznpd__faq summary::-webkit-details-marker{display:none}\n.nznpd__faq summary::after{content:\"\\203A\";flex:0 0 auto;color:var(--o);font-weight:800;font-size:20px;line-height:1;display:inline-block;transform:rotate(90deg);transition:transform .22s ease}\n.nznpd__faq[open] summary::after{transform:rotate(-90deg)}\n.nznpd__faq p{padding:0 0 16px;font-size:14px}\n.nznpd__faq[open] p{animation:nznpdReveal .24s ease}\n@keyframes nznpdReveal{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}\n.nznpd p.nznpd__note{margin-top:16px;background:var(--soft);border:2px solid var(--line);border-radius:12px;padding:14px 16px;font-size:13.5px;color:var(--mut);line-height:1.55}\n@media (prefers-reduced-motion:reduce){.nznpd__faq summary::after{transition:none}.nznpd__faq[open] p{animation:none}}\n@media (max-width:749px){.nznpd__checks{grid-template-columns:1fr}.nznpd__uses{grid-template-columns:1fr}.nznpd__spec{grid-template-columns:1fr;gap:2px}}\n\u003c\/style\u003e\n\u003cdiv class=\"nznpd\"\u003e\n\u003cdiv class=\"nznpd__lead\"\u003e\n\u003cp class=\"nznpd__intro\"\u003eA 75mm straight-line slide potentiometer (fader) with two independent 10KΩ channels, the kind used for volume and level control in audio mixers, DJ consoles and lighting boards. It's a B-type (linear taper) pot, so resistance changes evenly across the full length of travel, and the twin tracks let you control a stereo pair - or two separate signals - from a single slider.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cul class=\"nznpd__checks\"\u003e\n\u003cli\u003eDual-channel (stereo) - two independent 10KΩ tracks in one body\u003c\/li\u003e\n\u003cli\u003eB-type linear taper - even resistance change end to end\u003c\/li\u003e\n\u003cli\u003e75mm body-length straight slide (linear-motion) fader\u003c\/li\u003e\n\u003cli\u003e6 solder terminals - 3 per channel (two track ends + wiper)\u003c\/li\u003e\n\u003cli\u003eMetal slider shaft, 15 x 4 x 1.2mm - fits standard fader caps\u003c\/li\u003e\n\u003cli\u003eM2 mounting holes at both ends for panel fixing\u003c\/li\u003e\n\u003cli\u003e0.25W rated, ±20% tolerance\u003c\/li\u003e\n\u003cli\u003eLow sliding noise (\u0026lt;68mV) and 100% resolution\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003csection class=\"nznpd__block\"\u003e\u003ch3 class=\"nznpd__h\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"nznpd__specs\"\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eModel\u003c\/span\u003e\u003cstrong\u003eB103 (B-type linear taper)\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eResistance\u003c\/span\u003e\u003cstrong\u003e10KΩ (B10K)\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eAdjustment type\u003c\/span\u003e\u003cstrong\u003eStraight-line slide (fader)\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eChannels\u003c\/span\u003e\u003cstrong\u003eDual (double channel \/ stereo)\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eTerminals\u003c\/span\u003e\u003cstrong\u003e6 pins (3 per channel)\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eBody size\u003c\/span\u003e\u003cstrong\u003e75 x 9 x 6mm (pins not included)\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eSlider shaft\u003c\/span\u003e\u003cstrong\u003e15 x 4 x 1.2mm (L x W x T)\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eMounting holes\u003c\/span\u003e\u003cstrong\u003eM2 diameter, one at each end\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eRated power\u003c\/span\u003e\u003cstrong\u003e0.25W\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eResistance tolerance\u003c\/span\u003e\u003cstrong\u003e±20%\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eSliding noise\u003c\/span\u003e\u003cstrong\u003eLess than 68mV\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eResolution\u003c\/span\u003e\u003cstrong\u003e100%\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eZero resistance\u003c\/span\u003e\u003cstrong\u003e2Ω\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eContact resistance\u003c\/span\u003e\u003cstrong\u003e5Ω\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eInsulation resistance\u003c\/span\u003e\u003cstrong\u003e100MΩ\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003csection class=\"nznpd__block\"\u003e\u003ch3 class=\"nznpd__h\"\u003eWhat's in the box\u003c\/h3\u003e\n\u003cdiv class=\"nznpd__included\"\u003e\n\u003cdiv class=\"nznpd__qty\"\u003e1x\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eB103 75mm dual-channel slide fader\u003c\/strong\u003e\u003cp\u003eThe bare fader only - no slider cap\/knob and no wiring is included. Fader caps and finger grips are a separate accessory sold to suit your panel and colour scheme.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003csection class=\"nznpd__block\"\u003e\u003ch3 class=\"nznpd__h\"\u003eGreat for\u003c\/h3\u003e\n\u003cdiv class=\"nznpd__uses\"\u003e\n\u003cdiv class=\"nznpd__use\"\u003eAudio mixer and DJ console volume\/level faders\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eStereo level control from a single slider\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eLighting desks and DMX controller sliders\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eArduino \/ ESP32 analog input for motorless faders\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eRepairing or retrofitting mixing desks and keyboards\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eSynth, Eurorack and DIY audio panel builds\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003csection class=\"nznpd__block\"\u003e\u003cdiv class=\"nznpd__qs\"\u003e\n\u003ch3\u003eWiring it up\u003c\/h3\u003e\n\u003col class=\"nznpd__steps\"\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eIdentify the two channels\u003c\/strong\u003e\u003cp\u003eThe 6 pins split into two groups of 3 - one group per channel, on opposite sides of the body. Each group is (track end A) - (wiper) - (track end B).\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eAs a variable resistor or divider\u003c\/strong\u003e\u003cp\u003eWire the two outer end pins across your signal or supply, and take the output from the centre wiper pin. Swapping the two end connections reverses the direction of travel.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eReading it with a microcontroller\u003c\/strong\u003e\u003cp\u003eConnect one end to GND, the other to your 3.3V or 5V rail, and the wiper to an analog input (e.g. an Arduino A0 or an ESP32 ADC pin). Move the slider and read the changing voltage.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eUsing both channels\u003c\/strong\u003e\u003cp\u003eThe two tracks are electrically independent - use them as a matched stereo pair, or as two completely separate controls if you prefer.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003csection class=\"nznpd__block\"\u003e\u003ch3 class=\"nznpd__h\"\u003eCommon questions\u003c\/h3\u003e\n\u003cdiv class=\"nznpd__faqs\"\u003e\n\u003cdetails class=\"nznpd__faq\" open\u003e\u003csummary\u003eIs this a linear or audio (log) taper fader?\u003c\/summary\u003e\u003cp\u003eIt's a B-type, which is a linear taper - resistance changes evenly across the travel. If you're building an audio volume control and want the perceived-loudness curve, you'd normally choose an A-type (log) fader instead. B-type is ideal for lighting, control voltages, microcontroller inputs and anywhere you want a straight, even response.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"nznpd__faq\"\u003e\u003csummary\u003eWhat does \"dual channel\" mean here?\u003c\/summary\u003e\u003cp\u003eThere are two separate 10KΩ resistive tracks inside the one body, each with its own set of three pins, moved together by the single slider. That lets one fader control a stereo (left\/right) pair, or two independent signals at once.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"nznpd__faq\"\u003e\u003csummary\u003eDoes it come with a slider cap\/knob?\u003c\/summary\u003e\u003cp\u003eNo - this is the bare fader only. The metal slider shaft is 15 x 4 x 1.2mm and accepts standard push-on fader caps, which are sold separately so you can match your panel.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"nznpd__faq\"\u003e\u003csummary\u003eCan I use it with an Arduino or ESP32?\u003c\/summary\u003e\u003cp\u003eYes. Wire one track as a voltage divider (ends to GND and your logic rail, wiper to an analog input) and read the slider position as an analog value. Keep the rail within your board's ADC range - 3.3V for an ESP32, up to 5V for a classic Arduino.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"nznpd__faq\"\u003e\u003csummary\u003eHow is it mounted?\u003c\/summary\u003e\u003cp\u003eThere's an M2 mounting hole at each end of the body, so it bolts to a front panel or bracket. The solder terminals sit underneath for wiring or PCB mounting.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003cp class=\"nznpd__note\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e This is a standard B103 (10K, linear-taper) dual-channel slide fader - a generic industry part, not a branded studio component. Being a B-type it has a linear response, which suits lighting, control-voltage and microcontroller use; pick an A-type (log) fader if you specifically need an audio-loudness curve for a volume control. Ships as the bare fader with no cap or wiring. Every unit is checked before it ships from our Te Awamutu stock.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"NZN Electronics","offers":[{"title":"Default Title","offer_id":42921855647840,"sku":"POT-SLIDE-B10K-75MM-DUAL","price":4.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/6127\/0112\/files\/B103-75mm-hero.png?v=1783487964","url":"https:\/\/www.nznelectronics.co.nz\/products\/b103-75mm-slide-potentiometer-dual-channel-mixer-fader-b10k-linear","provider":"NZN Electronics","version":"1.0","type":"link"}