MiniCircuits kits (2023 Update)

They make it fast and fix up the impulse response afterwards. Interleaving many ADCs always makes a huge mess.

Cheers

Phil Hobbs

The main issue with most of MCL's packaged amps is that their gain rolls off steadily. Put a few in series with no peaking networks, and the results can be very disappointing.

I've used RFBay for higher-performance things, with excellent results at good prices.

Cheers

Phil Hobbs

Do they sell ICs, or just boxes?

Boxes AFAIK.

Cheers

Phil Hobbs

They had a series of bare MMICs too, tiny pucks with four leads sticking out at right angles. Easy to use, but as Phil said, they did have a tendency to gently roll off the gain with increasing frequency, though much gentler than 1st order. They ran very hot too.

They're still there: ERA-something.

Jeroen Belleman

I was talking about RFBay. Mini Circuits makes lots of MMIC amps too.

Cheers

Phil Hobbs

The ERAs are older darlington mmic parts. I like them because they don't have an internal bias loop like most of the newer parts. The bias controllers wreck the low frequency response, which the graphs conveniently hide.

Somebody, can't recall who, makes MMICS with a positive gain/freq slope. That could be handy to cancel trace losses or whatever.

We recently did a project with some EHC-24's, 20 GHz mmic, +-1 dB to

Given unlimited DSP resources, the analog design needs bandwidth but can be arbitrarily hideous. That changes ones' design approach entirely.

Deconvolution!

Assuming the SNR survives. For scopes, it generally does, to a point--your average superfast scope has 6-7 ENOB anyway.

I just wish they'd dork it into a Gaussian step response like an actual _oscilloscope_, rather than the sorts of peaky overshooting messes I've seen in the last 15 years or so.

A sad day for me, from a technical POV, was when I had to explain to a bunch of _Tektronix factory engineers_ that a scope lives and dies by its step response.

Cheers

Phil Hobbs

On a sunny day (Fri, 11 Nov 2022 07:53:04 -0800) it happened John Larkin snipped-for-privacy@highlandSNIPMEtechnology.com wrote in snipped-for-privacy@4ax.com:

Oh I agree with you, but then.. I still have - and use my old Trio / Kenwood 10 MHz dual channel scope. Bought it in about 1979... Was the tool in my repair shop for many years.. Now there is quality,, Do not need more as these days a simple RTL_SDR stick used as spectrum analyzer gives me all I need including GPS frequencies.. .1.6 GHz is my sticks limit

And then, cars cannot be sold as the chips are not available, same for other chips needing stuff...

We need GHz PCs now to read f*cking Microsoft email... (Godaddy, my website hosting company) moved to Microsoft mail, no more pop email! I have terminated auto-renewal so the site will move elsewhere around February, that is if the Internet still exists (chips, nukes, politics). Is is now more difficult to read [email] messages than when I was online with a 75/300 Bd modem. So where will it go? Best to have some transistors around to do things, maybe even tubes... Lots is now hype, sort of expect a big setback, human made climate change hype is like witch hunt was in medieval times,,, Selling bloated software is the business way...

Will archaeologists dig up our cellphones and wonder 'hoe did they ever do that in the 21 first century? Or some alien species lands here and looks at what we left behind.. While the mosquitos remained... :-)

Mostly pulses, but some low-level analog and of course a lot of power supplies for everything. Low jitter pulse generation is essentially an analog design problem. Electro-optics is mostly analog too.

Signal averaging is wonderful, especially in a high EMI location like ours. Color storage is great; when I get a nice waveform I can freeze it, add a post-it note, and take a picture.

And you have to keep relearning the interface and working around the ever-changing bugs.

They seem to have just fixed the email search/drag/drop bug after about 5 years. In another 5 maybe they will fix the typing-where-I-dont-want-to-type bug.

We used to use pop and Thunderbird, and someone moved us to Outlook webmail. It's awful. But having the same stuff from multiple PCs is good.

Life will be interesting 1000 years from now. And 10,000.

Arbitrarily hideous, except that it needs to be LTI (within the sampling approximation of course). Slew limiting and suchlike will lose information.

Cheers

Phil Hobbs

What Jan needs is a time machine to go back and enjoy working in the electronics so important to him.

On a sunny day (Sat, 12 Nov 2022 07:37:18 -0800) it happened John Larkin snipped-for-privacy@highlandSNIPMEtechnology.com wrote in snipped-for-privacy@4ax.com:

I just click my Canon camera... Put its SDcard into laptop, type 'send it' script to my website..

Yes, 'outlook'; imagine they accuse Huawei of spying for China but 'outlook' now has the data from everybody on their servers, unencrypted at that and given microsoft works with US DOD (remember that war ship that froze?) US is spying on everything and everyone.

I am considering sending my messages via satellite^H^H^H^H^H^H^H^H^H snail mail encrypted by my own designed method, for example 'attack whitehouse at noon' now reads: 'blurp', or in smake signs: O o o O O 0 0 They will never crack that code.

Good thing in all this is I got my gmail working again, at least google does something useful for humanity they can have my data? (and youtube videos if my site goes down).

Few days ago I got an other flyer from the glasfiber club, they say they now have enough subscribers here to dig up the street and put their fibers there, they say that if I subscribe now they will make the connection to the house for free, if not it cost me 350 dollars if I decide I want it later,...

So I will stay with wireless 4G for now.... Cheaper too and works everywhere. But for the next microsoft email version I would likely need fiber....

I was just reading Colorado now allows magic mushrooms... // Would using it improve designs? where it will go..... ?

On a sunny day (Sat, 12 Nov 2022 13:17:52 -0500) it happened John S snipped-for-privacy@invalid.org wrote in <tkoo0n$15tfc$ snipped-for-privacy@dont-email.me:

TRY SOMETHING LIKE THIS WISE GUY:

Now show us something YOU did and made available to humanity for free else shut up and learn

I not wise. And I'm not obligated to show you anything. I'm also not obligated to "shut up" and I doubt that you could teach anything new and useful that I could bring to market. I tinker only with designs that are to be manufactured by my company.

But I applaud your efforts to teach. You should improve your teaching by making readable schematics, though.

On a sunny day (Sun, 13 Nov 2022 05:53:01 -0500) it happened John S snipped-for-privacy@invalid.org wrote in <tkqiad$1ecgr$ snipped-for-privacy@dont-email.me:

Yes. All of my modern scopes ring.