Electronics Design

free? CAD models

Has anyone used this? https://www.futureelectronics.com/resources/design-tools/snapmagic-cad-models?loc=1 John Larkin Hi...

5 comments posted 5mos

posted by jl

5 comments posted 5mos posted by jl

another little 4-layer board

https://www.dropbox.com/scl/fi/gyn41v2ncb4wcqmise50d/X128_A4.jpg?rlkey=o3lurjhi0srwa7axsbzijjv4l&raw=1 This is just a t...

29 comments posted 5mos

posted by jl

29 comments posted 5mos posted by jl

Reference for mechanical characteristic of 3D print process

Can anyone recommend a good text that covers the mechanical characteristics of 3D printed objects related to the *proce...

16 comments posted 5mos

posted by blockedofcourse

16 comments posted 5mos posted by blockedofcourse

Why are BFR181 transistors so fragile?

I am trying to replace my BFR193 transistors with BFR181 but they no longer do their transistor job once I solder them....

16 comments posted 5mos

posted by coulon

16 comments posted 5mos posted by coulon

Thermal Faraday shield--effectively infinite rejection of thermal forcing

Hi, All, In my other thread on the power law circuit, I mentioned the thermal Faraday shield, which may be of interest....

3 comments posted 5mos

posted by pcdhSpamMeSenseless

3 comments posted 5mos posted by pcdhSpamMeSenseless

Cute Power Law circuit--selectable 1/3, 1/2, 2/3, 3/2, 2nd, and 3rd--for 30 cents

Hi, All, I posted a conceptual power law circuit a week or so ago on the "cheap analog square function?" thread. Turns...

0 comments posted 5mos

posted by pcdhSpamMeSenseless

0 comments posted 5mos posted by pcdhSpamMeSenseless

[ANN] Standard Ground Plane Antenna in Two Environments : Simulation and Measurements without Error Estimation

Standard Ground Plane Antenna in Two Environments. Simulation: RichWire-VEMSA3D of OROTO CP4TWS plus Two Applications o...

0 comments posted 5mos

posted by pez.usenet

0 comments posted 5mos posted by pez.usenet

A Conceptual Model for the Reflection Measurements of a Vector Network Analyzer System and its Practical Application

"A Conceptual Model for the Reflection Measurements of a Vector Network Analyzer System and its Practical Application"...

5 comments posted 5mos

posted by pez.usenet

5 comments posted 5mos posted by pez.usenet

new X-chapters

H&H are still publishing. There will be a new edition of the X-chapters out soon. https://www.amazon.com/Art-Electronic...

79 comments posted 5mos

posted by jl

79 comments posted 5mos posted by jl

jl test

jl test. I hate Windows. John Larkin Highland Tech Glen Canyon Design Center Lunatic Fringe Electronics

5 comments posted 5mos

posted by jl

5 comments posted 5mos posted by jl

Re: Designing a new electrical component (thyrototron)

>>>>>>>>>>>If we consider the rototron as an ideal device—meaning its >>>>>>>>>>>materials >>>>>>>>>>>are >>>>>>>>>>>no...

1 comments posted 5mos

posted by ross.a.finlayson

1 comments posted 5mos posted by ross.a.finlayson

Call by reference protection

[Obdisclaimer: cc'ing s.e.d only because some of you are no longer subscribed to the list and will likely not see this,...

18 comments posted 5mos

posted by blockedofcourse

18 comments posted 5mos posted by blockedofcourse

ribbon cable source

We'll need a lot of things like this https://www.digikey.com/en/products/detail/samtec-inc/FFSD-12-D-02-50-01-N/7235561...

2 comments posted 5mos

posted by jl

2 comments posted 5mos posted by jl

xo video

https://www.youtube.com/watch?v=a1_l8Qdsq5A John Larkin Highland Tech Glen Canyon Design Center Lunatic Fringe Electroni...

4 comments posted 5mos

posted by jl

4 comments posted 5mos posted by jl

Negative Supply Rejection Sucks

Is generally the pits. Anybody got a fave negative regulator with decent PSR? I need a few rails at no more than 150 mA...

26 comments posted 5mos

posted by pcdhSpamMeSenseless

26 comments posted 5mos posted by pcdhSpamMeSenseless