Electronics Design

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Fauci: Masks, Social Distancing Likely Until 2022

"Coronavirus vaccines -- once approved and distributed widely to the public -- won?t be a ?knockout punch? that eradica...
34 comments posted 5yrs
posted by bloggs.fredbloggs.fred
34 comments posted 5yrs posted by bloggs.fredbloggs.fred

Fun out-of-scope-bandwidth results

I took a 100MHz DSO with 100MHz probes in 10:1 mode and connected it to a 400MHz LVTTL clock. It is barely able to disp...
5 comments posted 5yrs
posted by peter.pan
5 comments posted 5yrs posted by peter.pan

Protecting a data bus from malicious attack

I'm currently involved in freedom of information litigation before a tribunal here in Australia. One of the issues I ne...
11 comments posted 5yrs
posted by sylvia
11 comments posted 5yrs posted by sylvia

OT: Asteroid Bennu

Hi, NASA have a small probe that just made a touch & go landing on an asteroid to pick up a few ounces of material. Ben...
5 comments posted 5yrs
posted by pallison49
5 comments posted 5yrs posted by pallison49

RF Explorer

I just got an RF Explorer 6 GHz signal generator. It looks cool, but the menus are basically impossible to use. It only...
16 comments posted 5yrs
posted by jlarkin
16 comments posted 5yrs posted by jlarkin

Isola microwave laminate

I only needed 3 square inches, but they sampled me a full panel. Good, I'll have some around for fast protos. https://w...
43 comments posted 5yrs
posted by jlarkin
43 comments posted 5yrs posted by jlarkin

"intelligent" telephone answering machine

Have need for such a beast; must recognize caller ID and determine if call is from a town/city. Wait 7 rings before pic...
77 comments posted 5yrs
posted by robertbaer
77 comments posted 5yrs posted by robertbaer

Old germanium transistors, A health risk?

In the 70's I bought some computer dump stuff, these were boards with digital circuits with germanium transistors in a...
28 comments posted 5yrs
posted by albert
28 comments posted 5yrs posted by albert

Analog

'Hurry up and wait.' - that's a rectangular impulse test, right? RL
1 comments posted 5yrs
posted by legg
1 comments posted 5yrs posted by legg

SiGe:C transistors and Early effect

So I'm doing this new laser noise canceller that I was talking about in the "differential signal detector" thread. The...
21 comments posted 5yrs
posted by pcdhSpamMeSenseless
21 comments posted 5yrs posted by pcdhSpamMeSenseless

eye diagram

Here's our little fiberoptic transceiver box in optical loopback mode. https://www.dropbox.com/s/j7r1eyalxfd6t68/K420_1...
7 comments posted 5yrs
posted by jlarkin
7 comments posted 5yrs posted by jlarkin

audio amp h-bridge

Hi, I'm using a TI integrated class-D audio amp in my alternator simulator, a TPA3255, but it shuts down at 17 amps pea...
10 comments posted 5yrs
posted by jlarkin
10 comments posted 5yrs posted by jlarkin

DC400 balancer

For couple of months ( or years), i've been talking (mostly thinking) about fixing my Leaf battery. It reports 60% SOH...
7 comments posted 5yrs
posted by edward.ming.lee
7 comments posted 5yrs posted by edward.ming.lee

Switcher Driving Motor for Speed Control

We brought a couple of new electronic designers onto the ventilator project I'm working on. One of them was suggesting...
34 comments posted 5yrs
posted by gnuarm.deletethisbit
34 comments posted 5yrs posted by gnuarm.deletethisbit