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Hello Members, If anybody lives near Preston, Lancashire there is 3 fully working on new coins MPU3 machines Adders and Ladders Exchange Unlimited Line Up All for public use I believe they are testing the water to see if there is a demand for more classics to be sited in the bar area

Even AI agrees with me lol, although baking soda is usually used on things like corroded remote control battery contacts ! so I don't completely agree with the answer lol Me I have a electronic pcb that's been damaged by alkali battery damage, is it ok to wash the pcb in vinegar? ChatGPT Washing a PCB (Printed Circuit Board) that has been damaged by alkali battery leakage with vinegar is not recommended. Vinegar is acidic and could potentially cause further damage to the components on the PCB. It may also not be effective in neutralizing the alkaline residue left by the battery. When dealing with alkaline battery damage on a PCB, it's generally advisable to use a mild alkaline solution to neutralize the alkaline residue. A common approach is to mix baking soda (sodium bicarbonate) with water to form a paste. You can apply this paste to the affected areas on the PCB and gently scrub the residue with a soft brush. Afterward, clean the PCB with distilled water to remove any remaining residue. However, the success of the cleaning process depends on the extent of the damage and how quickly you address the issue. If the damage is severe or has been left unattended for a long time, some components may be irreversibly damaged, and the PCB may need replacement. If you are not comfortable or experienced with cleaning electronic components, it is advisable to seek professional help or consult with someone who has experience in PCB repair.

paint over the bad bits, that will be alright ! yes vinegar is a acid and people think that's a good idea to put that on copper tracks, it just eats them away worse than alkali battery damage! Unless they are a chemist and know what solution to mix acid to become a PH neutral solution when mixed with the alkali, vinegar is bad! but no one answers when anything is said about PH neutral lol. I never touched vinegar washed boards as it gets under chips on the board and sits there and rots! you can always tell as it stinks when a soldering iron is used even after its been washed so is a good giveaway it is still there!! vinegar should only be used on chips of the potato kind IMO! lol

It because they came orginal with RTC chip so they have never had battery installed from factory