DeoxIT D100L-25C Precision Needle Applicator, More Than A Contact Cleaner, 25 mL, Pack of 1

I have resurrected many a vintage Hi-Fi stereo with a scratchy balance potentiometer or intermittent push button switch that otherwise was destined for recycle. Its expensive, but will pay for itself many times over.

I only use this product on one thing: the contacts on my

I purchased this product proactively so I have not used it yet, I am anxious to try it on a noisy volume control.

Everything was fine

Works well.

This purchase was a restock. Im a retired commercial broadcast and instrumentation engineer. Ive been repairing all types of electronics from consumer to state of the art comercial test equipment since the early 70s. Ive been using Caig products since the early 1980s so about 30 years. It was first recomended to me by John Fluke Company for use on decade switches on an AC calibrator. (Not saying they recomend it now, just that they did then.) Since then Ive used Cramolin Red as this used to be called for countless applications. It is THE ONLY product I have ever seen that would satisfactorily clean up a noisy position potentiometer on an analog oscilloscope. (Gives instant feedback about how well it worked by smooth trace movement. Noisy potentiometer causes eratic trace control). When it came time to refurbish my Nakamichi 1000 recorder I used this to clean and treat the slide potentiometers, switches and edge connectors. I use a tiny drop on the contacts and switch on any flashlight I own. No more variable intensity. Caig makes other products for other applications. Ive used many of them. But this is the one Ive used most. It hasnt let me down in 30 years. For those technically inclined: How it works. Cramolin Red (Deoxit) is specially fomulated not to adhere to itself. Meaning it easily reduces to monomolecular thickness under contact pressure. The liquid itself has 10 x 10 to the twelth ohms per cm. But that resistance reduces to almost nothing at monomoleculat thickness it reduces to under contact pressure. In the meantime it desolves oxides and contaminents so they can be wiped away. It leaves a very light protective coating that blocks further contact oxidation. Be aware that it isnt a universal solvent. There was an older contact lubricant known as Rycon that with time leaves a wax like coating on contacts that must be removed mechanically (Pencil eraser). Deoxid wont remove it. But for treating clean or untreated contacts this stuff simply cant be beat. Doc

Its hard to tell if it actually helped our issues but there was a lot of gunk that came out.

DeOxIt is a great product, and this is a far easier way to apply it than the brush cap bottle. Yes, this is EXPENSIVE, but it works every time and the needle applicator allows me to be more careful and economical applying the stuff.

Works as advertised. Great product to say the least.

Ive only used this a few times so far (corroded provision plug for car cruise control actuator and a couple battery terminals) but it seems to work great. As a warning I believe it is supposed to be conductive, though, so you might want to use electronics cleaner to blast it out on smaller connectors that have very close electrical connections before you power the device up again.