Oven problem

Started by Sylvia Else in sci.electronics.design3 weeks ago 31 replies

My kitchen's electric oven is misbehaving. After it's been on for a while, it can make a buzzing noise, and its LCD (?) flickers. Eventually...

My kitchen's electric oven is misbehaving. After it's been on for a while, it can make a buzzing noise, and its LCD (?) flickers. Eventually it shuts off, resets itself, and restarts with a "Program Cancelled" message. Clearly, its microcontroller knows that it was previously running. This is not like a power-on reset. The buzzing sounds a bit like a relay that's receiving so little ...


OT: not a merry Christmas

Started by Anthony William Sloman in sci.electronics.design3 weeks ago 56 replies

After last's years family Christmas get-together got cancelled because my brother's house was just inside the southern edge of a Covid-19...

After last's years family Christmas get-together got cancelled because my brother's house was just inside the southern edge of a Covid-19 hot-spot, I suppose I should have expected that this year would be worse. One of my grand-nieces showed up at my brother's house day or so ago, then went home to find that she was a Covid-19 contact and should get tested, and proved to have been i


317 resistance values

Started by Sid 03 in sci.electronics.design3 weeks ago 8 replies

The documentation on-line for LM317 regulators recommends a value of 240 ohms between the Vout pin and the Adjustment pin. What would be the...

The documentation on-line for LM317 regulators recommends a value of 240 ohms between the Vout pin and the Adjustment pin. What would be the detriment of changing this value to something other than 240 ohms ? Will the regulator not respond correctly or lag in its response ? Thanks


This is rather scary

Started by David Lesher in sci.electronics.design3 weeks ago 6 replies

-- A host is a host from coast to coast...............wb8foz@panix.com & no one will talk to a host that's...

-- A host is a host from coast to coast...............wb8foz@panix.com & no one will talk to a host that's close.......................... Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433


Short range targeting

Started by Don Y in sci.electronics.design3 weeks ago 30 replies

I want to "hit" a fixed spot with a physical object over relatively short distances ( < ~20 ft). This must not present a danger to nearby...

I want to "hit" a fixed spot with a physical object over relatively short distances ( < ~20 ft). This must not present a danger to nearby bystanders (in the event of a "misfire"). "Weapons" are out of the question. And, the object must be of sufficient size to be clearly visible in transit. This also suggests a low transit velocity. I figure I need a bit of mass to ensure aerodynamic


CML-CML level shifter

Started by John Larkin in sci.electronics.design3 weeks ago 19 replies

I have a differential output from a fast CML flipflop, powered by +3 and ground, and want to drive another CML-input part. If the load gadget...

I have a differential output from a fast CML flipflop, powered by +3 and ground, and want to drive another CML-input part. If the load gadget was also powered from +3, I'd just connect them with a couple of 50 ohm traces. But the Vcc of the destination part could be anything from +3 to -2. I want full speed and DC coupling, so the ideal part to put in series with both runs is a battery ...


SF Millennium Tower Is Unsalvageable, Will Have To Come Down

Started by Fred Bloggs in sci.electronics.design4 weeks ago 45 replies

“There was evidence of a lot of places with water intrusion,” said Williams. Williams noted some extensive water damage in the...

“There was evidence of a lot of places with water intrusion,” said Williams. Williams noted some extensive water damage in the garage, but he says the floor of the Millennium Tower’s basement exposed what appeared to be an even bigger problem: It was dipping in the middle, something referred to as dishing. “The dishing of the floor there, which is


Stepping motor torque ripple

Started by Klaus Kragelund in sci.electronics.design4 weeks ago 19 replies

Hi I am working on a stepping motor driver To reduce cost I will be making a discrete driver stage driven from a microcontroller that...

Hi I am working on a stepping motor driver To reduce cost I will be making a discrete driver stage driven from a microcontroller that has all the control features that would normally be included in a micrstepping driver like the A4988 https://www.allegromicro.com/en/products/motor-drivers/brush-dc-motor-drivers/a4988 For easy calculation let's say the power stage is driven from 1...


Our greatest achievement yet!

Started by Anonymous in sci.electronics.design4 weeks ago 3 replies

I had a good Christmas... finally.

I had a good Christmas... finally.


Translation services/strategies/costs

Started by Don Y in sci.electronics.design4 weeks ago 68 replies

I'm looking for folks who've first hand experience having documents translated into foreign languages. Said documents to include diagrams...

I'm looking for folks who've first hand experience having documents translated into foreign languages. Said documents to include diagrams (think: callouts, legends), #included text, etc. I've a fair bit of experience with I18N/L10N for software but the extent of the effort, there, is usually fairly limited. And, there's less of a need for a cohesive approach as the interactions are "punc...


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