Questions tagged [trimmer]

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2answers
69 views

Need help identifying and finding similar SMD variable resistor

The component appears to be damaged, but the datasheet for the board in question shows that this is a 47k ohm variable resistor. Looks like a trimmer, but not 100% sure. However, I've been trying to ...
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0answers
96 views

TZC3 capacitor restrict area underneath

I am going to use TZC3 family trimmer capacitors from Murata (datasheet, skip to TZC3 section). It has one of its terminals very close to the mounting surface, and theoretically if rotor is pressed ...
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0answers
60 views

Best conductive ink mixture for potentiometers

Im 3d printing a model for a 2 axis potentiometer, and I need a carbon ink mixture that will hold up to the copper wiper, and produce around 10kOhm resistance in a line around 1mm*6mm. Searching ...
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2answers
105 views

replacing a 2k resistor with a 1k and trimmer - wiring

I have a question about wiring up a trimmer in this circuit (NE555 - piano module) I have no background in electronics so please bear with me. One of the keys in the 'piano' sounds just off tune, so I ...
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3answers
393 views

Any possibility of dead short in trim pot

I want to add one trimpot of 1K in my ADC board to test several analog channels. I thought of connecting two ends to VCC and GND and middle pin (wiper) to analog input. But I am not sure if I need to ...
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1answer
109 views

What's the proper name for “annular potentiometer”?

I'm looking for a potentiometer without the shaft. It should be like a ring, in annular shape, so it can be mounted on an existing shaft. I don't find anything, but I'm afraid I'm not using the ...
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1answer
179 views

Combined temperature coefficient of LM741 and trimmer pot for null offset

I want to use a 10k trimmer pot with a 250ppm/°C tempco for offsetting input offset voltage of an LM741 op-amp. Cermet potentiometer temperature coefficients partially answers my question. And the ...
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2answers
138 views

Proper or instinctive design choices for trimpot direction [closed]

We all know its customary for a VOLUME control on any audio product should require turning CW to make it louder. In fact for user accessible rotary adjustments, clockwise almost universally means "...
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1answer
470 views

Trimpot potentiometer rotational life Vs load life

I'm dealing with an application which makes use of an adjustable linear voltage regulator (LT3080). A trimpot potentiometer is used in place of the set resistance Rset to regulate the output voltage. ...
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3answers
159 views

Trimmer Capacitor/Inductor stability

I am considering using either a trimmer capacitor or inductor combination with the other fixed valued component to create LC tuned filter for 1MHz. I want the system's resonant frequency to remain ...