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 > Your search for posts made by 'wnjj' found 514 matches.

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RE: Mini trim pot to big potentiometer

https://i.imgur.com/YH3g8kh.jpg width=200 Connect all three pins. Circuit board is double sided so traces can be on both sides. So you didn’t remove the small pot? You can’t just put two equal sized pots in parallel since the resistance will be reduced significantly, especially if you leave the on-board one turned anywhere but to 8k ohms. Best case you get 4kohms max. You can get close if you use a much larger value for the added one. For example if you parallel a 100kohm pot, twist the small one to 8k and the large one to 100k you will end up with 1/(1/8 + 1/100) = 7.4k max down to 0 when you turn the big pot all the way down (leaving the small one alone). However it would probably be simpler to just remove the small one. Also since there are traces on top, did you confirm there isn’t one to the 3rd pin there?
wnjj 01/22/20 09:02am Tech Issues
RE: Mini trim pot to big potentiometer

Yes , same value of 8kohm. In one of the pictures shows the traces of the circuit board going to 2 pins , the third pin didn't look like it went to anything according to the circuit board traces . I have the potentiometer wired up using the left and center pin , there wire to the trim pots 2 legs that looked like there used according to the circuit board traces , I checked resistance and I get 7.9kohm when fully counter clockwise, I get 6 millivolt when fully clock wise , maybe it does need all three pins but it sure doesn't look like it. Thanks for posting Ok, I wasn’t seeing the circuit board for what it was but now I do. I agree that it’s only using one end and the center tap. Did you remove that pot or how did you connect the new one? 8k ohms should be 8k no matter the source but you can’t leave the little one in place or you’ll end up with them in parallel (4kOhm max). Are there any traces on the top of the board?
wnjj 01/22/20 12:52am Tech Issues
RE: Mini trim pot to big potentiometer

The outside 2 pins are just the ends of a resistor. The center pin selects a point along that resistor depending upon where the pot is turned. The “ends” on the trim pot are the 2 pins on the same edge and the 3rd pin is the center. It doesn’t matter which “end” you use along with the center other than the direction you twist to increase or decrease will be reversed in one case if all you need is a variable resistor. However often times one end is ground, the other is power and the center tap selects something in between so all 3 pins may be needed. When you selected a large pot, did you get one of the same value as the small trim one? Did you de-solder and connect wires where the small one was? If so, just connect all 3 pins where the original was.
wnjj 01/22/20 12:02am Tech Issues
RE: No! I’m not top heavy.

On another note, looks like the buggy on the trailer lost a front wheel? They probably pulled the front wheels to lower the CG of that top heavy trailer. :D
wnjj 01/21/20 12:55am Towing
RE: Tesla Semi truck unveil & test ride set for Oct 26th !

Tesla unveils its new Full Self-Driving computer in detail: ‘objectively the best chip in the world’ https://live.staticflickr.com/65535/49415036452_ebe957f118_z.jpg Here’s a more detailed look at the IC and computer for the techie types. https://en.wikichip.org/wiki/tesla_(car_company)/fsd_chip
wnjj 01/20/20 02:37pm Tow Vehicles
RE: Another Tesla problem

Other thing to consider. I did a job for a customer with a tesla and he told me he rarely, rarely ever uses his brake pedal. He said the gas pedal works if push it you go, and if you let off of it the car will stop. He said it took getting used to at first but now he barely needs the brake pedal. Could be instance in OP's link where the driver was doing that and in a panic situation stomped on the gas pedal instead of the brake because they were so used to never using the brake. You may be on to something. Changing basic driver controls should be approached with caution and only with significant study. Muscle memory is tough to reprogram, especially under a stressful situation where humans go back to basics.
wnjj 01/18/20 09:33am Tow Vehicles
RE: Disconnect battery when not using?

Thanks all. Until we can get a switch installed I’ll pull a cable. One important thought on the switch. The switch is wired into the positive cable of the battery. Make sure that the emergency breakaway is isolated and NOT wired through the switch. This way the emergency brakes will still work if you make a mistake (we are all human after all) and tow with the disconnect open. The breakaway does not draw any battery power until it is activated. So it is safe to leave it connected. x2 and a good reason to install a real switch instead of using a poor man's switch (pulling a cable off).
wnjj 01/17/20 11:39am Travel Trailers
RE: Zoning Law

In many places staying long term in an RV isn’t allowed, however right now much of the west coast states have a housing shortage and officials are looking the other way.
wnjj 01/16/20 09:26am General RVing Issues
RE: Eagle Cap 1160 Dump Valves

Thinking of taking the interior floor up (the part you walk on), trying to find any structure, and making a hole. Then should be able to repair whatever hole is made and put some new flooring down. Current plan at least... Isn’t the basement floor under the valves the actual bottom of the camper? I know others have removed the bottom panel to access water tanks and heat ducts. It’s just a bunch of screws. I may be thinking of Arctic Fox owners’ posts.
wnjj 01/16/20 09:16am Truck Campers
RE: Eagle Cap 1160 Dump Valves

If you have to cut anything, take the outside bottom panel (i.e. bottom exterior "wall") off then see what you have to do from there. That way anything you do doesn't show.
wnjj 01/15/20 03:55pm Truck Campers
RE: Tesla Semi truck unveil & test ride set for Oct 26th !

The just released Porsch can't keep up with a 10 year old Model S, costs more and doesn't have nearly as much range. I take that as Tesla is way ahead. The new Volvo and Audi don't compare well either. They are all using the same batteries. How they choose to put them in their cars is where a lot of the performance differences is coming from. Tesla has made choices other mfg will not make with battery placement and battery pack density. There is nothing new here, just application of same technology. Battery energy is pretty much a physics limitation. You seem to acknowledge that Tesla batteries work better but at the same time deny that there is any reason for them to. Either that or there is no reason, they just do so it must be magic. I don't understand your thought process. He said placement and density is the reason for increased range. I assume that may come with a trade off in something (safety, reliability, mfg cost?) and may be why others are not doing that.
wnjj 01/14/20 09:52am Tow Vehicles
RE: Suburban Furnace Problem

Something is causing the relay to kick out repeatedly instead of hanging in there and passing the voltage to the motor, I just don't know what. Too large of a load for the relay rating? I'm leaning towards wrong board at this point. If you find that’s the case, you could always get a 12V automotive relay. Power the relay coil with the board’s fan output and use a direct fused 12V source to switch to the fan. You could even try that temporarily just to see if it operates if it seems to kludgy for a permanent fix. It’s unlikely but possible your replacement fan motor is failing or drawing too much power. Try running the motor with an ammeter in series to see how much it’s taking.
wnjj 01/11/20 10:22am Tech Issues
RE: Issue with phone

I had the same thing happen to my wife and I back in the days of flip phones. Only calls between her and I when she used Bluetooth and we were also NOT on the same cell tower would it fail. One of us couldn’t hear the other. The Verizon store even swapped my phone for a new one with the same result. They first tried the new phone with a different phone number and it worked but when they put my number on it, no go. What finally fixed it was my wife deleted my number from her contacts and suddenly it was fine. Something must have gotten saved under the hood that messed things up. After it worked, she created a new contact and all was well. I know this was on much older phones but your issue sounds just like ours. After reading opnspaces suggestion, he’s recommended exactly what happened to work for us.
wnjj 01/10/20 01:12am Technology Corner
RE: Truck warranty

I seen a copy of a statement over at FTE What is an FTE? Ford Truck Enthusiasts, i.e. Fish.
wnjj 01/06/20 08:48am Tow Vehicles
RE: Tesla Semi truck unveil & test ride set for Oct 26th !

https://techcrunch.com/wp-content/uploads/2020/01/tesla-china-model-3-lot-getty.jpg width=640 Made in China: Tesla Model 3 deliveries to Chinese customers to begin January 7 The funny thing about that photo, you get a choice of colors...black or white. World’s largest game of “go”.
wnjj 01/04/20 11:02pm Tow Vehicles
RE: Tires question

Been running BFG on my trucks for years (since 1980s) and more years with the KO2 - no issues, plenty of miles - both on and off roads. At the moment, on my Chevy 2500HD, just put a new set of LT 285-17's - ride great, very little road noise. I'd buy them again if I need them again ... They were about half-worn at 28K miles, but I hit a road hazard middle of nowhere and killed one. Don't feel right with only one new and half-tread on others, so bought four new, kept the others as back up in case it happens again. I had only one MFTR tire issue in all these years, and BFG replaced two so they would be even. Only good things to say about BFG. I used to run BFG’s but the last sets on my couple of rigs plus my dad’s all had problems with vibrations on at least one tire that balancing didn’t seem to cure. My other issue with them is they seem to pull to one side when they are well worn. They do have superb traction on snow and ice.
wnjj 01/02/20 08:31pm Truck Campers
RE: Tires question

B.F.Goodrich is owned by Michelin. Have they merged design & production or do they simply collect the money the BFG tires bring in, leaving the design to the legacy company?
wnjj 01/02/20 08:21pm Truck Campers
RE: Can installing weight distribution hitch be a DIY project?

The sticky thread at the top of this forum has a lot of info. https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/17730894.cfm
wnjj 12/31/19 10:47am Towing
RE: Tesla Semi truck unveil & test ride set for Oct 26th !

All valid points, but it doesn’t all have to be replaced at once. How do you eat an elephant. One bite at a time. Your previous comment below is anything but "one bite at a time" method and looks more like an emotional response to a complicated issue. Keep it simple. Double or triple the gas tax. Put all the extra revenue to subsidizing the electric vehicle transition. Start handing out billion dollar fines for oil spills. Make the oil companies pay in advance for the eventual oil spill that will happen. Don’t let anyone over 40 serve on a regulatory body that controls pollution. (Cause they just don’t give a chit). Whatever it takes. Jmho.
wnjj 12/30/19 12:54am Tow Vehicles
RE: Really Disappointing (T/C Weight)

My plan to weigh truck last night went to heck, but I did talk to the farmer where I deer hunt (dropping off their Christmas gift). He didn’t know about RV,s but he said the state police / County has been getting bad about pulling guys over in pickups pulling trailers that they suspect are overloaded. He also said his Dad got pulled over a couple times last year with their farm trucks for not having the State inspection sticker on them (you’ve gotta love Illinois.....Not!) One question as I work through this: I found the specs. on-line and the 10.0 Livin Lite will hang out almost 3’ past the back of my 8’ truck bed which means I’m also looking at a super truss hitch or building the equivalent for my Dyna Trak 18’ fish n ski / 3500# gvw trailer. Q. Do I need to also figure in my tongue weight as part of my gvw also or does that fall under gross combined weight rating (truck/trailer) Probably only 350-400 lbs though. Yes, tongue weight counts against your GVW. As for “legal”, none of the states use GVWR for anything legal that I’ve heard of. Many states require you to register a declared weight (your choice) which you cannot exceed and I suspect that is what those guys are getting pulled over for, if they are at all.
wnjj 12/24/19 11:51am Truck Campers
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