Viewing profile — zhrvoj

This is it. Exhibiting of negative resistance.

73 DE 9A5AFV. 1983-1985 as a youngster active mostly on 40m band CW from Radio Club Zagreb (est.1924) ex.YU2ADE - now 9A1ADE. FT-277 / windom antenna.

Coming back from warm and cozy Oman Al Hajar mountains and Wahiba crossing, this makes my cry. So beautiful and interesting planet we live on !!

I built many such oscillators same way. But I used BC107 NPN, connected collector to the ground, emmiter to resistor/capacitornet. Base free. Add LED in series with such connected …

I have allergic and eozinophil asthma, mixed. Mepolizumab is a game changer, for me.

It's fun reading all that posts about dangerous caps, dangerous flyback transformers... Those fears, and your findings I can read - were/are something normal in my world. I was pai…

Everything went well then. I graduated without computers help - on computers. Today it's vice versa. Today every new os version - just new clicks or taps, for poor little John to m…

Of course it isn't. I don't vote for internal combustion technology at all. Both are environmental problem. Looking at all the (ex) hype about electric cars, sometime it looks like…

Beside all of that, if you convert let's say 1/10 of cars with internal combustion engines to electric motor cars, there is no electricity to charge them. Which also leads to envir…

In my middle school 1983 we had similar, but with SC/MP uP, hex keyboard, 8 LED output port. We called it scamp, learning machine code and basics of architecture. Advanced students…

Welcome to the truth. Tires wear and all of that stays on the road, or next to the roads, seas, oceans. Years...tires... And then, we have to sort each plastic HDPE bag to save the…

Aha..just the matter of forcing obsolescence in order to raise profits in modern economy. Please excercise only on yourself, not on me. Another thing, it may be useless from your p…

Sail boat towing other boats (similar loa) should attach towing line close to her center of effort. Think like attaching towing line to the mast foot. Not on the stern. Not an easy…

Product manager - person that screwed up Evernote.

Problem is that electronics manufacturers, stopped making Service manuals for their equipment, or they are mediocre ...

PERFECT. MAGNIFIQUE. IF BOSS WILL BE FORCED TO CARRY ONE HEAD BAND SUCH AS OURS TOO. And his EEG analysis be presented to us also.

Yeah, do not attempt to use. High voltage inside. Better to buy any new low voltage piece of shit. Throw this all away. Be very afraid of this old stuff. Hmmm....your Tesla, runs o…

Can you imagine perfectly stable operational amplifier made with thermionic valves (tubes), ECC81, ECC82, ECC83. Amplifying DC millivolts to stable volts and converting them to pre…

No. Honeywell TDC's were in other plants - polyethylene, polystyrene. This was old olefin plant. Not any kind of control logic, no computers, no scada. Just control loops for flow,…

I was maintaining instrumentation is similar control rooms. The man behind panel. Petrochemical industry, recorders, indicators, alarms, tranducers, pneum. controllers. Mix of pneu…

Getting covid once right after sleeping in same space with all vaccinated. Positive - stayed at home - pretended to be ill. Friend, vaccinated, panicking getting covid after vacc..…

Pharma could go on with huge gains, just selling immunity boosters, like C, D vits, exposing to solar flares... But boosted with 'media', they were forced to take an "social" exper…