c_mitra
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Today, 14:49Cancer can show up only if the cells are rapidly dividing. Most common cancers are of ovaries, prostate, testis, female breast- regions of high...6 replies | 305 view(s) -
Today, 14:40c_mitra replied to a thread Doing electronics on an office carpet (non ESD) in Elementary Electronic QuestionsI beg to differ. Hopefully the office is climate controlled. Maintaining the humidity level at a decent level is part of the system. You should...10 replies | 311 view(s)
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Today, 09:20Sad but true. It all depends on many factors. In fact too many. X-rays are weakly absorbed by the human body. The part that is not absorbed has...6 replies | 305 view(s)
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Today, 05:35c_mitra replied to a thread Doing electronics on an office carpet (non ESD) in Elementary Electronic QuestionsCarpets look glamorous- but electronics business is glamorous too! But carpets are really mess. If a component falls on the carpet, it is gone for...10 replies | 311 view(s)
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Today, 05:25c_mitra replied to a thread Most efficient method of smoke extraction in Hobby Circuits and Small Projects ProblemsTo remove the smoke, you must remove the air which is the vehicle for the smoke. So it makes sense if you can remove it at the source, before it gets...3 replies | 175 view(s)
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Yesterday, 16:20Is TWINT a system variable? Often the system variables are written in ALL CAPS!! Take a look at...6 replies | 242 view(s)
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Yesterday, 16:11You are right; it does nothing because the contents are not assigned a location. I think the result will be left into the accumulator and discarded....6 replies | 242 view(s)
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Yesterday, 03:25It is a wise warning and better be safe. It does produce a small amount of soft x-rays (you can see that the accelerating voltage is around 25kV...6 replies | 305 view(s)
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23rd May 2020, 10:31You have added (INCLUDE files) a processor specific header file. Take a look at the inside (do not change anything) and look for a variable TIMER0. ...12 replies | 344 view(s)
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23rd May 2020, 10:10c_mitra replied to a thread Will a filter block this waveform? in Hobby Circuits and Small Projects ProblemsWell, let me try to understand the other way: it can be more fun sometimes. Your base frequency is 40 MHz; let me assume that this is correct but...25 replies | 617 view(s)
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23rd May 2020, 05:56c_mitra replied to a thread Will a filter block this waveform? in Hobby Circuits and Small Projects ProblemsThis is DC plus 40 MHz; DC will be fully blocked. Your filter has a lower cutoff of 100 MHz; it will block 50 MHz about 3 db. 40 MHz little more....25 replies | 617 view(s)
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22nd May 2020, 16:39You need to work out in longhand; the time shall be well invested. TIMER0 is a register within the processor that has been defined in some header...12 replies | 344 view(s)
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22nd May 2020, 15:59Yes, it can be confusing. Simplify! Let a -> b |= c; The operator |= is similar to += or -= or *= or /=. You can write it in longhand:12 replies | 344 view(s)
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19th May 2020, 16:57It is not surprising because the frontends are similar for a reason. The backends are very similar because they use the same system calls. ...1 replies | 406 view(s)
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18th May 2020, 13:06c_mitra replied to a thread 100uA analogue meter conversion to 1A? in Hobby Circuits and Small Projects ProblemsAssume that the meter coil is 1360 Ohms. Just use a 620-680 Ohm in series. Now the meter coil is about 2k. Now use two 0.1 Ohm resistor in series....16 replies | 645 view(s)
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18th May 2020, 08:47If you are planning to make only a few of them, then go for the pump based approach. That may be cheaper. If you are planning to make thousands of...9 replies | 499 view(s)
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18th May 2020, 08:28c_mitra replied to a thread 100uA analogue meter conversion to 1A? in Hobby Circuits and Small Projects ProblemsUse a DVM- they are cheap, easily available and reasonably accurate. If that is autoranging, you need not worry, otherwise select the 1K (most will...16 replies | 645 view(s)
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18th May 2020, 05:00c_mitra replied to a thread Weller Soldering Iron Tip Problems - not taking solder in Miscellaneous EngineeringRoHS guidelines recommend /suggest that you avoid toxic components in consumer products; Yes, I know that 60/40 solder has melting point less than...40 replies | 2495 view(s)
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17th May 2020, 15:11I presume the common hand sanitizers contain >50% alcohol- specifically ethyl alcohol. So they will be flammable. But I am not sure whether the...9 replies | 499 view(s)
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17th May 2020, 12:32Diaphragm pumps are robust but peristaltic pumps are more accurate. Both are very simple as far as their operation is concerned. Perhaps...9 replies | 499 view(s)
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17th May 2020, 10:28c_mitra replied to a thread Weller Soldering Iron Tip Problems - not taking solder in Miscellaneous EngineeringIt is relative; the base price in my country is also very similar but with taxes and shipping it becomes close to 18 euro. But a copper rod,...40 replies | 2495 view(s)
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17th May 2020, 07:29c_mitra replied to a thread Weller Soldering Iron Tip Problems - not taking solder in Miscellaneous EngineeringThese are obviously heavy duty tips and are supposed to get very hot. Weller tips are not cheap (they can cost an arm and a leg) but a tip...40 replies | 2495 view(s)
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17th May 2020, 03:34c_mitra replied to a thread Weller Soldering Iron Tip Problems - not taking solder in Miscellaneous EngineeringThe yellow color is due to oxide of lead; the black form is some lower oxide (lead oxide mixed with lead). The black form does not work with the...40 replies | 2495 view(s)
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15th May 2020, 16:39c_mitra replied to a thread Simple AM modulator for my power oscillator in RF, Microwave, Antennas and OpticsThank You for the enlightenment!15 replies | 746 view(s)
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14th May 2020, 09:44c_mitra replied to a thread Frequency Response of LC Filter has a Peak with an Impedance Load in Analog Circuit DesignQuality factor for an oscillator depends on the loading. For all practical purposes, loading should be considered dissipative. For example, R is a...6 replies | 437 view(s)
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10th May 2020, 13:36c_mitra replied to a thread Microcontrollers and a lot of advice - PIC , AVR, ARM - Software - Books - Boards in MicrocontrollersYes, learning is not difficult. Learning C is going to have long term dividends as you are planning to programming as a career. Good thing is that...12 replies | 1506 view(s)
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8th May 2020, 06:07c_mitra replied to a thread Why does .map file have _variable names and not just variable names? in MicrocontrollersVariable names that start with an underscore are valid variable names. But user variables do not, by convention, begin with an underscore. Variable...2 replies | 282 view(s)
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7th May 2020, 15:19Is it really true? Say I am comparing one Schottky and a PN junction diode with similar current rating (no point comparing devices beyond their...8 replies | 510 view(s)
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6th May 2020, 03:36May I ask why you wanted to drive the 21 lamps in parallel? Any special reason? Let us know. Best (most optimum in terms of power or energy...8 replies | 1591 view(s)
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