Electronics Design

OT what a weird place

https://www.google.com/maps/@37.7346858,-122.4479701,18z

15 comments posted 3yrs

posted by jlarkin

15 comments posted 3yrs posted by jlarkin

Direct Coupled Transmission Line filter in LTspice

I had never tried it in spice. I tried direct coupled first because I didn't really know what I was doing with the LTsp...

2 comments posted 3yrs

posted by gwhite

2 comments posted 3yrs posted by gwhite

House gets Hunter BooBoo's suspicious financials

There are MILLIONS OF DOLLARS of very suspicious financial transactions involving the Lyin' Bidens:...

14 comments posted 3yrs

posted by soar2morrow

14 comments posted 3yrs posted by soar2morrow

Rule of thumb for replacing power transistors with MOSFets?

I'm updating some game board designs and was curious if there is any sort of printed guideline for replacing silicon dr...

10 comments posted 3yrs

posted by jrr

10 comments posted 3yrs posted by jrr

Python on what?

https://news.mit.edu/2023/codon-python-based-compiler-achieve-orders-magnitude-speedups-0314 Good to know that: “Google...

6 comments posted 3yrs

posted by edward.ming.lee

6 comments posted 3yrs posted by edward.ming.lee

happy pi day

I'm baking my famous peach and blueberry pie. Albert Einstein was born on pi day. I used to know pi to 100 places. I'm d...

2 comments posted 3yrs

posted by jlarkin

2 comments posted 3yrs posted by jlarkin

Twitter to buy SVB?

https://finance.yahoo.com/news/elon-musk-just-said-hes-133500538.html Fat chance. You can't use negative asset (TWTR: -...

0 comments posted 3yrs

posted by edward.ming.lee

0 comments posted 3yrs posted by edward.ming.lee

v for frequency?

Since when did we start using v for frequency? v is velocity, f is frequency, lambda is wavelength. Using v for frequen...

1290 comments posted 3yrs

posted by CK1

1290 comments posted 3yrs posted by CK1

Recirculating pump for instant hot water.

Does anyone here have a recirculating pump to provide instant hot water to a faucet. I was looking putting at a heater...

86 comments posted 3yrs

posted by amdx62

86 comments posted 3yrs posted by amdx62

Rush House

Rush Limbaugh's widow sold their place for $150 million or so. I wish I knew it was up for sale. That's carrying around...

1 comments posted 3yrs

posted by deanh6929

1 comments posted 3yrs posted by deanh6929

Surge protector is a lie?

I have a Micromark surge protector. Just a plug (not as in to connect an appliance, it just plugs into a socket to abso...

48 comments posted 3yrs

posted by CK1

48 comments posted 3yrs posted by CK1

Fast edges from cheap logic

I've been doing some simple test sources, basically just one or other carefully selected LED driven by fast CMOS. Regul...

14 comments posted 3yrs

posted by pcdhSpamMeSenseless

14 comments posted 3yrs posted by pcdhSpamMeSenseless

What can kill an SCR...

I just got a unit (a netMCA spinoff) which was basically short circuit at its 12V power input, 0.1 to 0.2 Ohm. The thir...

8 comments posted 3yrs

posted by dp

8 comments posted 3yrs posted by dp

Flicker noise tutorial

While S.E.D. does not usually design ultra low noise oscillators, I suspect that the discussions of the various physica...

6 comments posted 3yrs

posted by joegwinn

6 comments posted 3yrs posted by joegwinn

Rail Splitting Chips

I read some of the discussion on "rail splitting" and it occurred to me that there should be a market for these devices...

50 comments posted 3yrs

posted by gnuarm.deletethisbit

50 comments posted 3yrs posted by gnuarm.deletethisbit