Electronics Design

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nice little FPGA

https://www.digikey.com/en/products/detail/amd/XCVM1402-2MLIVSVD1760/16720250 John Larkin Highland Tech Glen Canyon Desi...
40 comments posted 11mos
posted by jl
40 comments posted 11mos posted by jl

Hot tweezers

I’ve been doing some engineering changes on a batch of boards. They’re super low noise preamps for induction coil LF re...
9 comments posted 11mos
posted by pcdhSpamMeSenseless
9 comments posted 11mos posted by pcdhSpamMeSenseless

Re: Time-of-Day reference

On Tue, 26 Aug 2025 19:00:12 -0700, Don Y snipped-for-privacy@foo.That was fixed long ago but occasionally haunts me wh...
6 comments posted 11mos
posted by jeffl
6 comments posted 11mos posted by jeffl

was: oscilloscope tube display

Along the lines of DIY and microcontrollers, it might be profitable to approach this from another direction - where the...
0 comments posted 11mos
posted by legg
0 comments posted 11mos posted by legg

Re: Combining AC (mains) power sources

> If I want to supplement a particular source of AC/mains power with > other sources, what options are available? > > T...
8 comments posted 11mos
posted by sylvia
8 comments posted 11mos posted by sylvia

another wasted attenuator

https://www.dropbox.com/scl/fi/lv5cuqq2zav9r2ijlx6mr/Ex_20w_1.jpg?rlkey=ui15baw9lylvzfsscjen5szvq&raw=1...
14 comments posted 11mos
posted by jl
14 comments posted 11mos posted by jl

OT: Light lubricant

What kind of lubricant is used to reduce friction in light mechanical movements? For example, when I disassembled my Lo...
6 comments posted 11mos
posted by Pimpom
6 comments posted 11mos posted by Pimpom

more LTspice weirdness

I have a circuit that's all resistors, driven by an ideal pulsed current source. The resulting voltage droops seriously...
39 comments posted 11mos
posted by jl
39 comments posted 11mos posted by jl

testing again

again
0 comments posted 11mos
posted by ehsjr
0 comments posted 11mos posted by ehsjr

Asimov on electronics

Isaac was a smart guy. He appreciated that minority-carrier devices, p-channel things, are big and slow, so his robots h...
14 comments posted 11mos
posted by jl
14 comments posted 11mos posted by jl

Military rated POL converter

Hi I am looking for a 28VDC in, 12V ish output POL 30W converter, rated for Military, so MIL-STD 1275, MIL-STD 810, MIL...
0 comments posted 11mos
posted by klauskvik
0 comments posted 11mos posted by klauskvik

Speakout dumps business?

Speakout is a cell service provider, retailed through the 7-11 corner store franchise in Canada. It may be unique in th...
2 comments posted 11mos
posted by legg
2 comments posted 11mos posted by legg

LT spice speed

Can just moving something change sim speed? I had a couple of 3.3 volt power supplies, each grounded and driving a net n...
18 comments posted 11mos
posted by jl
18 comments posted 11mos posted by jl

little power supply

My summer intern Enzo is designing a pulse generator and he doesn't have much time before school starts, so I volunteer...
10 comments posted 11mos
posted by jl
10 comments posted 11mos posted by jl