....KAKED Kaked kaked. Where do I begin. First off, I think you've got some great ideas here, despite you're apparently complete lack of understanding regarding vehicles. I know. You're probably more concerned with the skyrocketing cost of poodle livers in South Aisa than you are about vans, mobile homes and the like, but just in case somebody actually REAds this stuff, I'm gonna go ahead and clear this up. Don't feel bad. First of all, your from the UK, so there's no reason you would need to know the American terminology, but most people don't know about the differences between trailers vs. mobiles etc. over here either. I only know cuz I happen to have at least one of everything, and I'm a new member of the ranks of "trailer trash." So here goes. Take it er leave it. We'll get back to your shielding ideas in a minute.
Let's go smallest to biggest. First ya gotcher basic car-hatchback-stationwagon types, and then ya move up to a mini-van, (think soccer Moms, and Danny Devito in Get Shorty) Then, ya have your basic cargo van, which is whatcha get to haul your crappy gear to yer first gig, when yer a teenager bound for ROCK GLORY. One of these vans with Captains Chairs and a cruddy little sink that smells like beer and vomit, is called a "conversion" van.
Next up, is what we call "motor homes", and they originally came in three classes: A,B and C. There is no class B anymore, and a class C is a cargo van chassis, most often with dual wheels in the rear, with the front end of the van intact, but everything behind the front seats is cut off and replaced with an aftermarket body, equipped with all of the comforts of home. We call these things "self-contained", because you can take a crap in them, and it doesn't land in the street, or stink up the (class C ) motorhome.
Class A motorhomes are like a poor-mans tour bus, the entire body is built from scratch, and are generally bigger than a class C. They too are self contained, have all the comforts of home, clog up the highways, and burn outragous amounts of fuel, especially when you put a car or a boat or anything heavy on a "trailer" (more on this in a moment) and drag it along behind you, which pisses everybody off cuz they think you're out there PLAYing when everybody else is trying to get to work. These people don't understand how serious some of us are about our partying and should shut the hell up.
Next up is the "Tour Bus", (Rock Star Bus) that started out in life as a commercial bus, (Greyhound, Trailways, Wolverine. "The day I took the Wolverine out of Anandale" [Steely Dan] ) and then converted by many different companies into asphalt palaces. They have everything, right up to but excluding swimming pools in them, and burn more fuel than.....Cleveland.
I do not now, nor will I ever own one of these, cuz.....they burn too much fuel......yea. That's it. They burn too much fuel.
So. That's the junk us Yanks run down the road. Next up, is the junk we live in, and that's a whole different deal. They're called "mobile homes", and if ya see one being pulled down the road by a truck, it'll have a big yellow sign on the back that say's "WIDE LOAD", (cuz they're about 13 feet wide), and they need a special permit to be hauled. (no engine in them). At 13 feet wide, they're called a "single-wide", and two of these units, designed to be fastened together on site, make up a "double-wide" mobile home (not motor-home). Just in case all this is not confusing enough, those of us who live in mobile homes, often refer to them as "trailers", as they were once all called, cuz they get pulled to where you want em to be, by a truck. The dealers started calling them mobile-homes, cuz it sounds better than "trailer", (...like custodial engineer ), but most of us still call em "trailers" cuz we're to lazy to say "Mooobile Hooome all the time. Once there though, they rarely get moved, which means that they burn no fuel at all, except for their furnaces, wood stoves, water heaters...ok. they still burn a lot of fuel, but not with a engine......
Still not confused? Okay. Let me try again. There are two single wide mobile homes on my property. I live in one, and plan to build my studio inside of it.
The other one I'm using for a barn, cuz it's not fit for human habitation. At least not now...
I know. It's rediculous.
So. Back to my #$&^# tick. Both of these single wide mobile homes (trailers), are connected to the same power pole, but the line is split at a second pole, providing a meter for each "trailer", (single wide mobile home).
So, these two mobile homes, (single wide "trailers"), are each connected to the grid exactly the same way that any other home is, and the wiring as well is exactly the same. One of the most confusing things about this "tick" issue is that the amps tick exactly the same in both trailers...(mobile ho...ok you get it. ) As Andy said, above, a ground issue may be causing my problem, but I'm more inclined to think that you, my man, are closer to the truth, and despite your complete ignorance about vansmotorhomestrailersandmobilehomes, your logic here was....eloquent. Excellent, even. However, I've already done an "elimination round", as you
suggested, to no avail. tick...tick...tick., and that leads me to exactly the same conclusion that you came to. A few days ago, I began to think about the idea of shielding my amp from the possible presence of EMI and/or RFI, and I was trying to figure out what kind of sheet metal might be up in my "barn", (which in reality is a singl.....never mind), that I could enclose it with.
The key thing here I believe though, will be to ground the shield, much the way our cable shields are grounded to our chassis. So far, this is the most encouraging course of action, and I appreciate your input, "seconding" my motion to shield. I agree, it does sound a bit daft, but your talking to a guy who just tried a witch doctor with a rattle, an aspirin, and a bandaid. Given that, shielding doesn't sound so daft at all.
Now. Regarding the goat......You sicksick sicky you.........aaaaaaahhh....YES!
She's wearing......aaaaaaah BLACK FISHNETS! Yea! That's the ticket ! .....and...aaaaahh the highest damn stillettos you ever saw and they REAly show off her..... fur... ok..this is goin' nowhere, but the offer stands. Anyone who solves my ticking problem will be the proud new owner of a very old goat.
As a bonus, I'll throw in a garter belt, or a bottle of A1 Steak Sauce. Yer choice......

Thanks to all for the help.