Electronics Design

fast diodes gone

There used to be a bunch of low-barrier schottky diodes with Cjo

7 comments posted 4yrs

posted by jlarkin

7 comments posted 4yrs posted by jlarkin

The HP 3561A - still useful in 2022?

It's a cheap and cheerful (relatively compact) boat anchor, I'm curious if it could be good for doing any useful low-fr...

6 comments posted 4yrs

posted by user

6 comments posted 4yrs posted by user

One of man's greatest achievements

This is commendable work... Many nations involved. Many many tons of gear down here and techs and engineers to make use...

103 comments posted 4yrs

posted by DecadentLinuxUserNumeroUno

103 comments posted 4yrs posted by DecadentLinuxUserNumeroUno

Mass production of revolutionary computer memory moves closer with ULTRARAM TM on silicon wafers for the first time

Mass production of revolutionary computer memory moves closer with ULTRARAM TM on silicon wafers for the first time htt...

22 comments posted 4yrs

posted by pNaonStpealmtje

22 comments posted 4yrs posted by pNaonStpealmtje

Short Circuit Protected Constant Current Supply

Here are the documents for a short-circuit protected constant current supply for making silver ions and other uses. The...

12 comments posted 4yrs

posted by spamme

12 comments posted 4yrs posted by spamme

The Mathworks is offering more than 1600 dB of attenuation

https://www.mathworks.com/help/rf/ug/richards-kuroda-workflow-for-rf-filter-circuit.html Those plots go to -1800 dB. Wha...

14 comments posted 4yrs

posted by gwhite

14 comments posted 4yrs posted by gwhite

bowtie panel antenna

I want to setup a bowtie panel antenna to receive UHF Terrestrial TV transmissions in my area. I live between two stati...

49 comments posted 4yrs

posted by sidwelle

49 comments posted 4yrs posted by sidwelle

6G really?

6G really? https://www.globaltimes.cn/page/202201/1245197.shtml Adopting the photonic terahertz technology route, that...

18 comments posted 4yrs

posted by pNaonStpealmtje

18 comments posted 4yrs posted by pNaonStpealmtje

OT: getting a better idea of how hgh temperature superconductivoity works

This may eventually turn out to be on-topic. If we could design high temperature super-conductors by making them with c...

15 comments posted 4yrs

posted by bill.sloman

15 comments posted 4yrs posted by bill.sloman

The dynamo generating the earth's magnetic field

This is clearly on topic. Today's Proceedings of the (US) National Academy of Sciences has a paper on the subject https...

5 comments posted 4yrs

posted by bill.sloman

5 comments posted 4yrs posted by bill.sloman

Filter connectors

Feedthrough caps have gotten stupid expensive, like $15 per pin. There are D sub connectors with built-in capacitance o...

8 comments posted 4yrs

posted by pcdhSpamMeSenseless

8 comments posted 4yrs posted by pcdhSpamMeSenseless

Using a cheap USB microscope for paste stencil alignment

A minor thing, but a big time/back ache saver when you can't get right over the stencil to crank the alignment micromet...

6 comments posted 4yrs

posted by speffSNIP

6 comments posted 4yrs posted by speffSNIP

Lab Visit

I can be there this coming Thursday.

3 comments posted 4yrs

posted by sepflanze

3 comments posted 4yrs posted by sepflanze

Design help / ideas current sensor

I'm going to just come right out and ask for some assistance on this. There are still "areas" in electronics I have nev...

42 comments posted 4yrs

posted by mikerbgr

42 comments posted 4yrs posted by mikerbgr

Blackberry Smart Phones Shut Down

This might be a trip down memory lane for you professional types. There's a mention about a 4 year old who tried to flus...

19 comments posted 4yrs

posted by deanh6929

19 comments posted 4yrs posted by deanh6929