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From: Klaus Vestergaard Kragelund <klauskvik@hotmail.com>
Newsgroups: sci.electronics.design,sci.electronics.repair
Subject: Re: Favourite Test Equipment
Date: Thu, 4 Apr 2024 11:55:40 +0200
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On 01-04-2024 09:01, Jan Panteltje wrote:
> On a sunny day (Sun, 31 Mar 2024 18:41:18 +0100) it happened Cursitor Doom
> <cd@notformail.com> wrote in <9k7j0jlnbhs8qfg5m17pium0835meean83@4ax.com>:
> 
>> Hi all,
>>
>> I'm starting to get a bit fed up with having my test equipment blow up
>> just when it's needed. This is the drawback with vintage gear; if it's
>> not used frequently then it can go *bang* the next time you switch it
>> on. It makes for good practice in repairing stuff, but wastes a lot of
>> time which could be better spent doing other things.
>> I think it's time I modernised my test gear. I was just wondering if
>> anyone has any recommendations they can share. Is there a particular
>> piece of test equipment you couldn't live without? Something you're
>> particularly impressed with? I'd be interested to know so I can
>> perhaps acquire said item and thereby reduce the number of explosions
>> I experience.
>>
>> Thanks,
>>
>> CD.
> 
> My 10 MHz Trio dual trace analog scope is from 1979 or there about, I blew up a channal once myself in the first week
> when I accidently touched a booster diode in a TV I was repairing with it, fixed it locating the problem with the other channel.
> Later I cracked the graticule when a soldering station fell on it from the table (scope stands on the ground)
> Made a new graticule.
> So, and still working perfectly, OK for all things I build with micros.
> For RF to about 1.6 GHz I use RTL_SDR USB sticks and the spectrum analyzer I wrote.
> and for AC DC measurements I have some made in China digital meters and an analog one.
> also a Voltcraft clamp-on meter for current when you do not - or cannot interrupt things with the meter impedance.
> Also have a Voltcraft soldering station.
> Blew up one of my digital meters a while back (volts on the resistance scale) but fixed it again (replaced resistor).
> Many other test equipment I designed and build, like amplifiers LF and RF, SWR meter, radiation meters, gamma spectrometer,
> GHz stuff for satelite, transmitters low and very high power, what not,
> a frequency converter to use the RTL-SDR sticks and so the spectrum analyzer on higher and lower frequencies.
> Have a SARK100 SWR analyzer too.
> Things last forever here...
> Scope used on a regular basis..
> RTL-SDR stick 24/7.
> Digital meters used every day.
> Use my self designed lab power supply every day..
> What more do you need?
> Learn to use the stuff, understand what's important, and that is it
> When I started in electronics as a kid I did not even _have_ a meter, still stuff worked.
> Build my own scope at some point back then when I somehow got the parts
> Not much pocket mony as a kid.
> UNDERSTAND your systems, what electrons do.
> Showing of with boat anchors may impress people, especially the clueless...
> But it does not help you one bit.
> Anything with an accuracy better than 1 percent in most cases is just like apes screaming load trying to impress other apes.
> 

Very true about specifically the 1% statement. Sidebar, at an earlier 
employment, we needed to equip a new lab. Guys wanted GHz scopes. When 
asked if the ever looked at edges faster than 1ns, no one did.