Products > Test Equipment
Test Equipment Anonymous (TEA) group therapy thread
Cubdriver:
--- Quote from: bd139 on June 24, 2022, 08:53:10 pm ---
--- Quote from: Cubdriver on June 24, 2022, 08:46:23 pm ---
--- Quote from: bd139 on June 24, 2022, 08:09:44 pm ---We're all fucked at some point. It's just about controlling how soon as best as possible.
Just found out how much Russia fucked my pension today. 3 years of contributions down the shitter. I've just shit canned all contributions to it in the short term and will spend it on beer, floozies, scopes and power supplies 8)
--- End quote ---
Poor counters can’t get no love…. :'(
-Pat
--- End quote ---
I'm in the market for some counters :-DD :-DD
5334B, 5316B and 5381A are on the list of acceptable counters.
If anyone guesses the "theme" of those counters, you win bugger all other than my respect :)
--- End quote ---
None of them have nixie displays so there's no worry that I'd be bidding against you? :P
-Pat
bd139:
--- Quote from: mansaxel on June 24, 2022, 10:48:15 pm ---5440 5B40 update:
U165 is toast. The trigger signal arrives, in-spec, to it, and does not depart. There's no blown tant on its supply; it has just below 5V on the supply pin, and it's not noisy. It does also draw some power.
Parts list sez:
--- Code: ---U165 155-0109-00 B010100 B021739 MICROCIRCUIT,LI:MONOLITHIC,TRIG 80009 155-0109-00
--- End code ---
So, a quick Ebay glance gives that it is not Unobtanium; there are a couple sellers on the bay who want around 25 money for one, plus transatlantic shipping. Stiff prices, them. Does anyone here sit on a few?
--- End quote ---
Look for the part in Tek wiki and then check eBay for plugins to sacrifice :-DD
I will keep an eye out at Newbury. Lots of Tek stuff appears there usually.
nixiefreqq:
--- Quote from: Cubdriver on June 24, 2022, 11:03:21 pm ---
--- Quote from: bd139 on June 24, 2022, 08:53:10 pm ---
--- Quote from: Cubdriver on June 24, 2022, 08:46:23 pm ---
--- Quote from: bd139 on June 24, 2022, 08:09:44 pm ---We're all fucked at some point. It's just about controlling how soon as best as possible.
Just found out how much Russia fucked my pension today. 3 years of contributions down the shitter. I've just shit canned all contributions to it in the short term and will spend it on beer, floozies, scopes and power supplies 8)
--- End quote ---
Poor counters can’t get no love…. :'(
-Pat
--- End quote ---
I'm in the market for some counters :-DD :-DD
5334B, 5316B and 5381A are on the list of acceptable counters.
If anyone guesses the "theme" of those counters, you win bugger all other than my respect :)
--- End quote ---
None of them have nixie displays so there's no worry that I'd be bidding against you? :P
-Pat
--- End quote ---
hmmmmm.
boring as shit 7 segment leds?
they do have another common flaw.
but you could send them to med and he could hack a fan on to the back for you.
edit don't you already have a 5334b? didn't you do a homebrew channel c mod?
mnementh:
That suggestion... was pure unadulterated eeevil.
mnem
I tip my hat to you, sir. :clap:
srb1954:
--- Quote from: bd139 on June 24, 2022, 09:08:33 pm ---
--- Quote from: Vince on June 24, 2022, 09:04:23 pm ---I don't understand the comparison between the two ? I mean they are just different things. 4000 series has a voltage range of 3 to 15V. 74HC / HCT if I believe the datasheet I just pulled, is 2 to 6V.
I understand your points, taken...but if I need to supply the logic for whatever reason above 6V, I am screwed with 74-anything.
Or if the circuit doesn't have stable supply voltage and the logic cheap needs to be able to operate with a changing supply voltage ?! :-//
--- End quote ---
It's probably cheaper now to just chuck a 78L05 in the circuit and be done. That will handle both problems for pocket change.
--- End quote ---
Not so good if you want ultra-low current consumption for running off batteries. The quiescent current of the 78L05 will drain your battery far faster than the quiescent current of the CMOS logic it is supplying.
There are lower quiescent current versions of the 78L05 but they are considerably more expensive than the jellybean 78L05.
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