Latest threads in Electronics Designshow only best voted threads
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OT: Week End Project
...Jim Thompson
8
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7 years ago
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8 | |
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Voltage controlled duty cycle with a CMOS inverter
Hi I need a dirt cheap voltage controlled duty cycle I have a couple of inverters on the board that are free to use. Anyone done a voltage controlled duty cycle with a 5V logic inverters? I can't use...
34
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7 years ago
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34 | |
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Heathkit, Clock
I see they now have a 7-segment Clock kit availble. BTW, my first kit was one of those Mostek IC clocks in the 70's. Lasted well into the early 90's Cheers
21
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7 years ago
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21 | |
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ESD protection chips
Hi, all, I'm in the midst of productizing that cotton spark detector that I demoed in the spring, and talked about here a fair amount. The architecture is a main control panel talking to N integrator...
13
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7 years ago
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13 | |
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exponential converter temperature stabilization
Could some electronics guru...heh, no, I'm not that guy. But could some electronics guru explain how this circuit is supposed to stabilize the Vt dependence of a differential pair V->I exponential...
22
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7 years ago
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22 | |
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Digital sound system
My TV has a optical jack to hook up a digital sound system. The manual has no additional details on that jack. I would like to hook up some external speakers to hear better sound that those cheapie...
2
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7 years ago
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2 | |
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Voice Recorder as Test Signal Sorce
What would be the cleanest automated way to retrigger this digital voice recording module to play back a "continuous" sound? In other words, if the recording is 20 seconds long, to retrigger playback...
2
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7 years ago
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2 | |
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Internet Telephone
Does a simple Internet telephone interface exist? I think perhaps not, or not at a cost less than $200. Google finds plenty of devices, but most have complexities I just don't want. Let me explain and...
87
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7 years ago
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87 | |
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Intel
and same thing here and Some day someone will write a really good book about the rise and fall of Intel, and the effect of Intel on creating the predatory culture of Silicon Valley. Intel has clung...
19
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7 years ago
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19 | |
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Momentary > 5 seconds > Latch
I'll probably end up getting a 50 cent PIC and do this but screwed around with a 4011, a latching SCR -- 555 trying to do it with minimum parts count. Just curious if you (experts) come up with...
29
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7 years ago
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29 | |
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Domestic US source for small quantity of CA3127 transistor array?
I'm looking for one or two of these arrays for a small home project. Yes, I know they're available from China on eBay, but I'd much rather find a couple of vintage (and authentic and working) parts...
18
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7 years ago
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18 | |
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Semi OT: Detroit leads the way in EV technology
Tesla is fun to watch, but GM has the clout to bring inexpensive long-range electric vehicles to the masses. In general, compared to what Tesla and GM have in the pipeline, the EV offerings by the...
109
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7 years ago
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109 | |
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LHC Black Holes
I was explaining black holes to a friend who asked about the LHC and thought about what might happen if a tiny black hole were created. I believe matter falling into a microscopic black hole would...
150
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7 years ago
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150 | |
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jitter on SPI interface and clock-domains
Hi, I am currently again learning some more VHDL and the exercise project I am working on now is to implement SPI slave. This is to be used in combination with a STM32F103 maple mini clone. Question....
15
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7 years ago
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15 | |
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Maximum current for analog switch
Say I use an analog switch like this one to drive a capacitance or rather the gate of a FET to turn it on with 5V and turn it off shunting to 0V It's a 20 ohms part if driven from 5V The gate has...
53
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7 years ago
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53 |