Potentiometers

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Potentiometers

EdHolland
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Posts: 1,287
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Joined: Nov 2017
City: Menlo Park State, Province, Country: CA

#11

11-18-2018, 12:01 AM

I fiddled a little with this today. I have a bottle of aquadag resistive coating, and tried various applications of this painted on to a piece of circuit board material.

By itself, resistance is fairly low, say for a 1" x 1/4" track. 10's of kOhm

Blending with PVA glue certainly made the coatings more robust and more resistive, as the carbon content of the film is reduced. It did not take much to get in to the MOhm range.

The next trick will be film thickness control.

I don't hold with furniture that talks.

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Messages In This Thread

Potentiometers - by EdHolland - 11-13-2018, 01:37 PM

RE: Potentiometers - by Phlogiston - 11-13-2018, 01:50 PM

RE: Potentiometers - by EdHolland - 11-13-2018, 03:20 PM

RE: Potentiometers - by Chas - 11-13-2018, 10:32 PM

RE: Potentiometers - by Radioroslyn - 11-13-2018, 11:24 PM

RE: Potentiometers - by EdHolland - 11-14-2018, 02:52 PM

RE: Potentiometers - by Chas - 11-14-2018, 05:39 PM

RE: Potentiometers - by EdHolland - 11-15-2018, 01:50 PM

RE: Potentiometers - by morzh - 11-15-2018, 02:24 PM

RE: Potentiometers - by EdHolland - 11-15-2018, 05:02 PM

RE: Potentiometers - by EdHolland - 11-18-2018, 12:01 AM

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