Electronics Design

high curent PCB connector

Does anyone have a favorite high-current PCB connector? I'd like to get 20 wires into a pluggable connector, to go on a...

27 comments posted 1yr

posted by JL

27 comments posted 1yr posted by JL

PCB Vendors -- Again!

Looking to avoid tariff. Got low-cost domestic PCB vendor(s) you like? TIA, John

6 comments posted 1yr

posted by Sophi.2

6 comments posted 1yr posted by Sophi.2

Product idea

A lot of people in e.g. mobile homes in New England and (other areas of the US it gets cold in the winter) are stuck wi...

25 comments posted 1yr

posted by user

25 comments posted 1yr posted by user

SPLD output current protection

I have an SPLD with about 8 terminals exposed to the user I'd like to protect against over current. They're very low-sp...

10 comments posted 1yr

posted by user

10 comments posted 1yr posted by user

A variation on my current mirror low distortion sine wave oscillator - 10dB less distortion and much the same number of components

Basically same idea, but two separate controllable asymmetric current mirrors, rather than one, and no current steering...

29 comments posted 1yr

posted by bill.sloman

29 comments posted 1yr posted by bill.sloman

XBLW variants of MCP6001/2 opamps

While hunting for a cheap R-R opamp that's readily available here in India, I came across the MCP6001 and 6002. Unusual...

8 comments posted 1yr

posted by Pimpom

8 comments posted 1yr posted by Pimpom

The low distortion oscillator problem

There have been quite a few postings about 1kHz low distortion sine wave oscillators. The problem is that if you want a...

13 comments posted 1yr

posted by bill.sloman

13 comments posted 1yr posted by bill.sloman

Re: Experiences with rack mounted kit mounted *vertically*

> Anyone have any long-term experiences regarding (wall) mounting > rack mountable kit front-down or front-up?  Reliabi...

3 comments posted 1yr

posted by newspam'''

3 comments posted 1yr posted by newspam'''

Curve Tracer

Gentlemen, I've decided a nice project would be to build a curve tracer which would (because I'm a vintage nut) use a C...

18 comments posted 1yr

posted by cd

18 comments posted 1yr posted by cd

OT: Twitter/X

Gentlemen, I've just noticed the vast majority (no exaggeration) of my Twitter (X) following consists of young women wi...

18 comments posted 1yr

posted by cd

18 comments posted 1yr posted by cd

50 ohm on FR4

Grok reckons to make a 50 ohm tx line on FR4 I would need a Trace Width of approximately 2.73 mm and a Trace Spacing of...

7 comments posted 1yr

posted by cd

7 comments posted 1yr posted by cd

Med follow-up Was: Miraculous button makes things work again.

In sci.electronics.repair, on Sun, 26 Jan 2025 12:42:01 -0500, micky snipped-for-privacy@fmguy.com wrote: I told about...

0 comments posted 1yr

posted by NONONOmisc07

0 comments posted 1yr posted by NONONOmisc07

Very simple 1kHz sinewave circuit is more than 133dB down on harmonics

Elaborate DC stabilization isn't needed to get below 130dB. There's nothing at all visible at 2kHz in this circuit and...

10 comments posted 1yr

posted by invalid

10 comments posted 1yr posted by invalid

Re: Wake on USB event

> One of my workstations refuses to stay asleep.  Often, > just after being COMMANDED to sleep, it would reawaken. > So...

5 comments posted 1yr

posted by sylvia

5 comments posted 1yr posted by sylvia

Valve frequency multipliers

I am trying to use a 15 Mc/s crystal oscillator to generate a 150 Mc/s signal, the obvious multiplication ratios are x5...

51 comments posted 1yr

posted by liz

51 comments posted 1yr posted by liz