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Let's talk about rotators for loop antennas. I hope it's not too much of an off topic? Just got my cross parallel loop installed on cheap RCA rotator designed for TV antennas (VH226e). My antenna is

I'm afraid I don't have any ideas outside of MILSPEC conformal coatings, or embedding in epoxy, and even then, equipment is usually inside something else that takes the brunt of damaging conditions,

Hi Kurt, What would you recommend that's easy to apply? I can re-apply it once in half a year or so. Not really expecting it to last 25

I can: NOT, NOT, NOT! Recommend the Krylon UV Archival Spray. As applied, it sucks. Fails almost immediately, relatively speaking, maybe a month or two. 8 coats? Still sucks, but fails in a

Maybe something

I was actually thinking about some easy to use spray on UV protection that I can just use on an amplifier box while it's already mounted on a mast. Could you recommend any sprays like that? Maybe

Rather than investing considerable money and effort into some super enclosure its? far more effective to coat the loop amplifier PCB in a decent conformal coal lacquer. Conformal coating along with

I've used small bore needles to make holes in PVC plastic cases for other projects, a remote reading barometer where one pressure sensor tracks rapid, real time, air pressure changes and the other is

My experiences. Don't have any cables or connectors mounted on the top or sides of the box, fit them on the underside, so that surface water drains away easily, and doesn't "pool" around the

?A drain hole can be 1mm in diameter and work fine but drilling a smaller hole can lead to drill breakage. Just drill a small hole 1-2mm diameter. Injection moulded plastic boxes have sloping sides (

Thanks for the reassurance, Simon! One niggling problem less to fret over :-) Michael 2E0IHW ...

Here is the big list of Tools which already are able to import Snap-Eda CAD Data files: https://www.snapeda.com/ regards, Fred

Just another thought on the subject of CAD software selection. I had to find a symbol and footprint of this part not so long ago:

Hi Guy, Sorry for that. Didn't created a shared link properly. I hope this one will work: https://photos.app.goo.gl/JGbFUQFggkj4eUFF8 Regards, Simon KM6MUL <guy@...> wrote:

Hi Michael, Here is a pic of my CCW Experimenters amp. I'd say this vent hole is about the size of the center pin hole in BNC Female connector. Very close in

The BF862 (obsolete) from NXP is very similar to the 2SK932.? I successfully used it in my Wellbrook built. https://www.nxp.com/docs/en/data-sheet/BF862.pdf The LT-Spice model: .model BF862-13

Search LTSpice model for 2SK932-24-TB-E Hello I am looking for LTSpice the model of the 2SK932-24-TB-E If anyone has this model, could you send it to me. Thank you in advance for your help. Best

Hi Simon, Thank you for all the links and info. Good to know info! So thankful you put all the effort for me in the links too. I would love to see your picture linked at the bottom. But the link

as mentioned bofore, if you are in doubt with a hole only,? just use a Gore adhesive vent pad to cover the hole. These small self adhesive membrane pads are available in various diameters, also for

I mentioned capillary action in an early post, look it up, it is a fascinating subject. Liquids will literally be sucked into very small gaps. I suspect, but don't know, a droplet of water would be