I know... it's no fun like the good old days with ear-grinding scratchies & sparks & burning speaker paper... the damned protection circuitry just goes into shutdown the millisecond it detects a shorted coil , and you're done.
If you're lucky, you hear a little
*~POP!!!~* before it does.
Worse yet, nowadays they can detect the sudden increase in reactance from a speaker bottoming out... so you don't even get THAT.
mnem
Speaker protection has come a long way. In the early days when all we had was overvoltage/current detection (which would shut the amp down but not handle the kickback from the speaker), it was scary noises and/or possible destruction every time something misbehaved. Then people started being smarter about the protection circuitry, to the point that other than deliberately driving the speaker beyond its ratings it's now hard to fry something. Allegedly, the Crowns will take inductive current spikes from the speaker and "recycle" them without tripping the protection. And their peak limiters don't seem to affect the sound in any way at reasonable levels - though I don't deliberately try to push the amps.
I did take my 500W 4Ω load and verify that the amp meets its power spec across the audio band - briefly.
I've become quite fond of the new Crown amps - 3 year full warranty (transferable), and still designed here in Indiana.
I'll stick with my prehistoric Peavy PV500. It's loud enough to make my teeth ache, and I haven't been able to kill it yet.
mnem
*conservatively rated*
Just got Version 9 that just came out!
I sure hope they've spent some time on their physics engines since 7. Their small FBL helis & acro quads were totes out to lunch; even the big ones felt like flying a brick.
And still no wireless dongle, for the price they charge...? SERIOUSLY?!?
mnem
*flip!*
Ordered the 18th.
Arrived today.
Sold as "New Other", appear to be "lightly used" & repaired; found a scarred screw like somebody replaced an earpiece. 100% functional!
First impressions: SDE MUCH improved over DK2 & Rift CE. Barely noticeable, & rotated 45° like the CE, but higher res and better contrast greatly reduce perceived fuzziness compared to the CE. I am actually typing this while viewing my browser through the WMR home portal, something I could NEVER stand to do with either of my previous HMDs. Same wearability complaints as other users; lenses too close, need extra-thick forehead pad to get focal distance right & overhead strap to eliminate excess nose pressure. Still better than most FPV goggles.
I almost bought a few months ago when the full kit was reduced to $299, but I was just overextended due to recent Ryzen 3700X build. ~$150 is, I feel, a reasonable price for "lightly used" headset only, especially considering I really want to do the Valve Knuckles controllers anyways.
mnem
*Virtual-ily*
Just got Version 9 that just came out!
I'm still using RF4.5 - living in the past!
It is really only for additional helicopter practice in the winter though. With the nice weather I try to get in 20-60 minutes of real flying per day with my micro heli fleet.
↑ ↑ ↑ ↑ ↑4.5...?!? You fly micros and practice on 4.5? How can you STAND IT? The physics on RF6-7 are simply ATROCIOUS; nothing at all like a real FBL micro. Pretty sure 4.5 has to be worse yet.
That shit will teach you to fly WRONG man.
mnem
Spew and a half...!!!
Hah, I don't fly any of the micro stuff on 4.5. I often fly a 90 sized heli inside a building. It has quite a realistic feel to it and the walls come up pretty quick. I can already fly around my yard no problem with the real helicopters. The sim is more for inverted practice and some basic stunts etc.
edit - started years ago with a Blade CP, had a trex 450 and trex 600 but didn't fly them much. Then went to micro's with the Walkera 4#3 and was a part of the brushless conversion rage(was very active on rcgroups.com). Then got out of heli's for a few years, but recently got back in with a Nano S2, Blade 130S and a Fusion 180. It helps I now have a backyard that is big enough I can fly at home.
Same here. Mostly Genius CP, Mini CP, Axe100 (9 Eagles rebrand) and 450-500 size CCPM/FBL. Even their 500 size feel like they're mired in molasses to me; trying to do funnels and tick-tocks in RF 6-6.5 nearly broke my brain.
EDIT: Too bad you're all the way over by Vancouver... I'm moving to Toronto in a few weeks, and I have a couple Fusuno FUC-1071 (For Fusion 50) canopies left over from modding my 500 that need a new home. They're not worth the cost of postage, tho...mnem
Bought a DLP printer to make these:
They look suspiciously like wave guides.
Bought a DLP printer to make these:
Nice. Anything special about the resin for those?
They are RF horns(antennas), lowest freq(biggest horn) is for 18-26.5 GHz. The smallest ones are 110 GHz. They are of course just for show at the moment until they have some metal plating on the inside.
It is standard Elegoo resin.
Tempted to pull the trigger on a DLP but as the usage would be sporadic pouring and storing open and used containers of resins keeps stopping me before you get to the messy cleanup and post curing. Shame the results are just so good
I have been playing with epoxy and poly resins for 30+ years btw so it's not a lack of knowledge just an understanding of some of the downsides of the technology.
Printed a little something for my wife as well.
Watching a random eevblog2 video today on modding a commercial smoke extractor while unpacking some carbon impregnated filter material for another job.
eBay auction: #143251038585 Quick rummage into the fan collection and out with the shears.
Works a treat even without a shroud, 12V 120mm fan running 7-8V @ .2A (for less noise and it works well enough) I have only been using a little fan on an arm over soldering jobs in the past but maybe a DIY enclosure and extractor project coming up. Laser cut ply/acrylic or 3DP for the body is the question
They are RF horns(antennas), lowest freq(biggest horn) is for 18-26.5 GHz. The smallest ones are 110 GHz. They are of course just for show at the moment until they have some metal plating on the inside.
It is standard Elegoo resin.
Which printer did you buy? Is it the Elegoo Mars?
They are RF horns(antennas), lowest freq(biggest horn) is for 18-26.5 GHz. The smallest ones are 110 GHz. They are of course just for show at the moment until they have some metal plating on the inside.
It is standard Elegoo resin.
Which printer did you buy? Is it the Elegoo Mars?
It is the original Anycubic Photon - the cheapest of the cheap, but it is impressing me constantly.
Yeah, I've seen them as cheap as $199 a few months ago. I almost pulled the trigger, but was overextended already. Wouldn't have bought the Odyssey+ but for the price just being too good.
@bean - Nice knock-together. I used plastic pop fasteners to hold the filter in place on mine.
If you're going to make a frame, you should 3DP it with hinge flanges like a GoPro mount so you can attach it easily to an articulating arm. One of those things that's been on my DSIGD list for like a year...
mnem
It is the original Anycubic Photon - the cheapest of the cheap, but it is impressing me constantly.
I've been looking at these printers but the small build volume has been putting me off.