Instrument is a Geonics EM16 VLF receiver, using in the mineral exploration industry to find buried linear conductors.
Give it the vinegar and baking soda treatment.
I greatly prefer citric acid. It comes in crystals so a small tub equals gallons of vinegar, it doesn’t smell bad, and you can control the strength by dissolving more crystals into water.
It’s incredibly fast compared to vinegar at cleaning battery alkaline.
I understand the vinegar, but why baking soda?
Neutralize the vinegar after dissolving the corrosion? I’ve not done that, but seems plausible.
It works. I’ve done it quite a few times. I have used a Dremel tool to buff the contacts and used a light coating of dielectric grease to prevent further corrosion.
A brush on the dremel?
Yes, wear gloves and eye protection. Those small wires would be a nightmare get out of your skin even more so for the eyes.
Looks like you’ve got a computronium infection. That’s getting more and more common these days.
Just hit it with some vinegar or windex. If those don’t work, you may have to just toss it out.
Fun Fact: batteries only do this when they’re over-discharged. If you design your circuit right, this won’t happen.Then why have I had Duracells leak in an unopened package before the expiration date?
I hate Duracell for this reason. Thank god we finally got decent rechargeables.
Duracell suck but Kirkland are so much worse. Rechargeable Eneloops are the way to go.
Jul 91? Now I feel old.
The instrument is fully analogue, designed in the late 70s. The serial number on the device implies it was manufactured in 87. I contacted the manufacturer and the last person who could service it has long since retired, but they sent me the calibration and tuning documents so I might be able to revive this beauty.
That’s actually awesome they sent you anything useful at all.
