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Eremita Analogico <LEDITApaolo.carrer@DALNASOlibero.it>: May 26 02:58PM +0200 Il 24/05/2019 16:41, olaf ha scritto:   > Of course, go ahead. :-)   > I would check the quality of the internal powersupply in the next step.   > Olaf   Ok, thanks. I see that the 9V battery is directly connected to V+ and V- pins of 7106 (through power switch)   There are another 2 chips, a JRC 062D (dual op-amp, probably for Vref) and a CD4070 that I think is for decimal point drive.   I will check these two chips...

John Robertson <spam@flippers.com>: May 26 09:52AM -0400 On 2019/05/23 2:45 p.m., Eremita Analogico wrote: > Replacing the 7106 with another don't eliminate the problem. > Do you think that I can try to solve? > Thanks.   How is the display connected to the PCB below it? Is it a wide flat flexible cable or a pair of edge conductive strips? If strips is the display firmly seated on them? If you gently press on these edges when displaying the incorrect values do the display then show correct values? If so, rather than taking it apart, can you insert some small bits of foam rubber to gently press the display down when it is installed back in the case?   John :-#)#   -- (Please post followups or tech inquiries to the USENET newsgroup) John's Jukes Ltd. MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 (604)872-5757 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out."

Jeff Liebermann <jeffl@cruzio.com>: May 26 08:40AM -0700 On Thu, 23 May 2019 20:45:09 +0200, Eremita Analogico >Replacing the 7106 with another don't eliminate the problem. >Do you think that I can try to solve? >Thanks.   The clock in the 7106 is not running. I would look at the 100pf or so capacitor on pin 38 of the 7106 for some kind of clock oscillator waveform: <https://datasheets.maximintegrated.com/en/ds/ICL7106-ICL7107.pdf> If there's no oscillation, and it's not one of the nearby components, the likely culprit is a blown 7016. Replacements are available: <https://www.ebay.com/sch/i.html?_nkw=7106+a%2Fd>     -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558

lsmartino <luismartino76@gmail.com>: May 25 07:40PM -0700 > >Arresters, Tube Guy posted the "what are they?" question over here.   > No one on that forum CLEARLY said what they are. Just guesses..... > Guesses are not real answers.....   The first message of the forum link posted by you, clearly stated that the "mistery part" was labeled 39ZR07, and looked like a "disk green cap".   A quick search with Google threw this:   http://www.weisd.com/test/GenericParts_WEISD_view.php?editid1=39ZR07D   39ZR07D NTE Equvilent NTE1V025 MOV 25V RMS DIA=8.5MM 1.7 JOULES ITM=250A CLAMPING VOLTAGE=80V   https://www.datasheets360.com/part/detail/39zr-07d/-178918802698168439/   So it's just a MOV.

Jeff Urban <jurb6006@gmail.com>: May 25 01:03PM -0700 I don't care what you grow, bottom line is that if you give it the voltage it wants it should be safe. If it is a bad design then I can't say.   Actually, anyone out there interested in growing smoke - it is almost not worth it now. It is legal to grow in many places now and that means those people will not be buying. Plus now they got vapes and those are efficient and not that easy to make, and they will win a good piece of the market.   I tried it back when it was worth it and all I got out of it was junk and almost ten grand in utility bills. We didn't really have LEDS or CCFLs then, I had sodium and nickel hydrydes, 1,200 watts of them and then about 20,000 BTU to cool the whole mess down.   I could heaver done much better things with that money.   One of the things with LED and CCFL is that I am concerned about their spectral output. You need UV and all that, and that also may include people. Some people just don't like florescent tubes, old tubes were phosphors, so are CCFLs and the newer LEDs. (that's why the can use them to backlight an LCD screen now)   Some people just really like incandescents.

Jeff Liebermann <jeffl@cruzio.com>: May 25 01:42PM -0700 On Thu, 23 May 2019 07:26:18 -0700 (PDT), Tim R <timothy42b@aol.com> wrote:   >https://www.amazon.com/s?k=maxlite+growight&ref=nb_sb_noss >although it doesn't say growlight, but I don't know why else >you would have one. I've never seen a super CFL that size.   I have a 100 watt equivalent CFL light in a hallway. It's mounted upside-down which is a good way shorten its life. When it blows, I'll replace it with a warm LED light.   >Is there any risk to running one of these in a basement ceiling fixture?   You haven't described the fixture. If it's enclosed, particularly in the ceiling, you run the risk of either starting a fire, blowing up the CFL light from overheating, or both. It's strictly a matter of ventilation and heat build up. Buy an IR thermometer and do whatever it takes to keep it cool, including adding a small (quiet) fan. <https://www.google.com/search?q=ir+thermometer+gun&tbm=isch>   >During the winter I do my morning wakeup under bright light, this >kind of lamp might be easier than my current setup. But not if >it's going to explode or break during use.   It probably won't explode, but might get hot enough to set fire to anything nearby that's flammable. I had one CFL lamp on my desk belch fire for about 2 seconds from a small hole in the "ceramic" base. If there had been anything nearby that could burn, it would have started a fire. <https://www.google.com/search?q=exploding+compact+fluorescent+bulbs>   If you're into indoor agriculture, I suggest you look into LED grow lights and read something on how they work. [Quiz] Why are plants green, but LED grow lights produce very little green light? <https://www.google.com/search?q=LED+grow+lights&tbm=isch>   -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558

Jeff Liebermann <jeffl@cruzio.com>: May 25 10:33AM -0700 On Sat, 25 May 2019 10:13:43 -0500, Elder Jones   >For Camber, tenths of a degree in repeatability & accuracy would be nice. >Does anyone here know if a typical smartphone can achieve that feat yet?   The MEMS accelerometer used in many smart phones is capable of 0.06 degrees of resolution (not accuracy). The device will need to be calibrated against a 0 degree horizontal flat surface (easily done by vertically rotating the MEMS sensor and adjusting for zero change) to obtain such levels of camber accuracy. The limiting factor is the sensor noise level.   ADXL213AE datasheet <https://www.analog.com/media/en/technical-documentation/data-sheets/ADXL213.pdf> The typical noise floor is 160 µg/vHz, allowing signals below 1 mg (0.06° of inclination) to be resolved in tilt sensing applications using narrow bandwidths (<60 Hz).   Note that this MEMS sensor currently sells for about $32/ea which makes it an unlikely candidate for a consumer grade smartphone. <https://www.digikey.com/product-detail/en/analog-devices-inc/ADXL213AE/ADXL213AE-ND/669792> There are probably better and cheaper sensors available.   >If not. >When do you think phones will be able to achieve that accuracy & precision?   When someone finds or creates a market for such a device.   You can try it yourself to see what can be achieved. There are many electronic bubble level apps for Android and iPhone: <https://play.google.com/store/search?q=bubble+level&c=apps> Most seem to display in 1 degree resolution, but there are a few that will display 0.1 degree resolution: <https://play.google.com/store/apps/details?id=com.jonyups.poziomicagen> I tried to use various Android apps for aligning satellite dishes, where +/-0.5 degrees or better accuracy is the norm: <http://www.learnbydestroying.com/jeffl/antennas/dish-new-install-project/> but found that a digital angle level was more useful: <https://www.google.com/search?tbm=isch&q=digital+protractor>   These look interesting: <https://express.google.com/u/0/product/15900634407707968640_0_6099994> High accuracy ±0.005°, high resolution 0.001°. <https://express.google.com/u/0/product/KKmoon-DXL3/12101973972988473742_13025317009461916407_6099994> High accuracy ±0.05°, high resolution 0.01°.   -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558

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