I'm orbiting the voltnut rabbit hole. Wrote a logging script over the weekend and have been capturing voltage, temp and humidity measurements from two voltage references every 3–4 seconds for the past 27+ hours.
@med there is always the impale the Landlord on the mast to solve your reception and lack of quality Arial problems
Seems I have added more or less the final bit of the Calibration puzzle 'for now' to a very decent standard
Lowball offer accepted on a Valhalla AC/DC current calibrator and very cheap freight.
I'm orbiting the voltnut rabbit hole. Wrote a logging script over the weekend and have been capturing voltage, temp and humidity measurements from two voltage references every 3–4 seconds for the past 27+ hours.
Get yourself a saturated Weston standard cell, and use it as a thermometer; 40uV per degree C near room temperature
Seems I have added more or less the final bit of the Calibration puzzle 'for now' to a very decent standard Lowball offer accepted on a Valhalla AC/DC current calibrator and very cheap freight.
Wow, that is cheap freight; let's hope not
too cheap!
Hope it works and that you don't have to recal it
Something random. So I'm digging through my notes and I found this "low cost" gem.
Probably fine for filter and harmonic analysis. Just add noise source
Got the Attenuator bit covered. Some playing with the SDR and it in the near future and see if it is useful.
This TEA enabler splashed out a little on himself today with a bright and shiny 500 MHz 4ch scope !
Gunna have to wait for his next shipment arrives to play with it but that's some weeks away !
Awesome. We expect rise time measurements you know
Extended outage = easier time catching up on this thread
I was just posting a solution to the problem of nuclear fusion power for the world and it was lost!
This all the more tragic since I posted the answer to life, the universe and everything. Now I can't remember it. It required some deep thought!
Extended outage = easier time catching up on this thread
I was just posting a solution to the problem of nuclear fusion power for the world and it was lost!
This all the more tragic since I posted the answer to life, the universe and everything. Now I can't remember it. It required some deep thought!
When seconds count, you may find the answer to be right above.
This all the more tragic since I posted the answer to life, the universe and everything. Now I can't remember it. It required some deep thought!
Are you a relative to Detritus from the Ankh-Morpok (Night-)Watch?
Quote:
"While Detritus does not have much imagination, he is fairly intelligent, by troll standards, especially since the end of Men At Arms, when Cuddy made a clockwork cooling helmet for him, which reduces the effect heat has on the conductivity of Detritus' silicon brain. The helmet stopped working completely in the desert heat of Jingo, but has been repaired by the time of The Truth. Like all trolls, he becomes extremely intelligent as the temperature drops, once almost developing a grand unified theory of everything in several hours when locked in a 'Pork Futures' warehouse. "
Source:
https://discworld.fandom.com/wiki/Detritus
5334B arrived literally just as I was slapping bacon in my sandwich...
... pics soon.
5334B arrived literally just as I was slapping bacon in my sandwich...
... pics soon.
I'm not sure why you're slapping your bacon and I'm equally unsure I want pictures of it.
You have to slap the bacon first
Sandwich done. Counter works very nicely. Cal isn't terrible. Condition is pretty good. Inside is untouched. RIFAs will be replaced - ordering new ones as I'm out.
2.8Hz off 10MHz, assuming my signal generator is right, which it is approximately. Not bad either way. GPSDO needs to purchased to actually get a single source of truth. Buttons all work.
Insides dirty. Will go and clean them. Bottom right shows the three missing parts to get channel C. Add one prescaler IC and a couple of diode rings and remove a capacitor then you get 1.3GHz. Also note the OCXO hole. Will see if I can fill that one way or another.
Rise time measurements ... woot. Also does pulse voltage measurements. Double woot.
These motherfuckers are GOING tomorrow. RS order going in shortly.
Very happy
Edit: £13 of fresh new Kemet RIFAs ordered as I've run out!
Edit 2: now looking at Leo Bodnar references. What have I become?!?!?!
GPSDO needs to purchased to actually get a single source of truth.
Glad you think of it as "a" not "the" single source of truth.
Edit 2: now looking at Leo Bodnar references. What have I become?!?!?!
A neophyte.