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Cat peed in my Amp

#42
nashvillebill said:
Do like Tektronix recommended for their scopes: take the circuit boards out and run them through the dishwasher....
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Don't forget the final rinse with distilled or DI water, especially important in hard water areas or where water conditioners are used.
 
#43
waltdogg said:
I've seen an old Carver power amp that sat out in the rain, I'd imagine the rain isn't *as* corrosive as cat pee, but the contact cleaner and new caps brought the amp back to life.
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Correct, but the other contaminants on the board dissolve into the water leading to likely (not guaranteed) problems down the road.
 
#45
nashvillebill said:
Do like Tektronix recommended for their scopes: take the circuit boards out and run them through the dishwasher....
Click to expand...

People have reported doing this.

I have a military R390A radio receiver like the one below that came to me in rough shape. The depot used to store them outside and the first step in the restoration was often hosing down some of the modules. There radios were in service for decades, often in harsh field conditions. They were also used by NASA and the CIA. No circuit boards, all point to point.


r390a-28.jpg
r390_depotpallet.jpg
 
#46
Some military equipment uses conformal coatings to protect from such damage. Great for protection, but a pain to repair.
 
#47
These radios didn't have any conformal coatings. I know what you mean about that stuff though. It is like a plastic coating and pretty tough. Those coatings do a good job in harsh environments such as dirty factory floors and in outdoor communications equipment bays at towers where there is often condensation.

When the Gulf War broke out, some modern radios wouldn't work when the sand got into them. They brought in some of these old tube radios and they had no problems.
 
#53
Off-Beat said:
I've got an Ashdown mag 300 and I once took it to a rehearsal. While playing I forcefully put a bottle of beer on it and it started "screaming". The high pitched noise wouldn't stop even when I turned down the output and preamp potis down. When I got it home I opened it up and found out that catpee was all over the circuit boards. I cleaned it, but I now hesitate to use it. I've got a 20w amp for home practice and atm we use an equipped rehearsal room. As it's a new band I also have no timetable to (fully) repear and stresstest it, but I'd love to refurbish it(equipment would be np, same for parts as a work at a company who build mechatronic components - would just need to stay longer).

Anyone got an idea where to look at? First idea was that a filter(lowpass?) got bypassed. I colleague ment it might be the preamp.
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KILL IT!
 
#56
Just want to say a few things about cats. Most people who met a cat and hated it ever since probably met a female cat. There is a world of difference between females and males. I would never take a female stray home and keep it. They are just like the males while kittens but grow up and it's a different story.

Female cats consider you their server or slave. Male cats consider you their buddy.
 

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