Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 1729050 times)

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Offline beanflying

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38850 on: September 14, 2019, 04:09:51 am »
I don't get the fascination with propping up old calculators when 98% of us carry a device with us most times that will run emulators if being in the minority and a twisted perverted RPN lover is your thing  :-DD

https://play.google.com/store/apps/details?id=org.efalk.rpncalc&hl=en_AU

(Attachment Link)

There’s something about holding the thing in my hand that emulators don’t replace.

What you hold in your hand and what you do with that hand is maybe better done in private  :-DD
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Offline wch

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38851 on: September 14, 2019, 05:19:05 am »
... same as an uncleared stack full of intermediate results ...  :--

Or the problem encountered by a simultaneous translator when the source is an especially verbose German professor. The translator has to stay silent, until eventually they are forced to exclaim "Professor, the verb, please!".

For those that didn't learn a little German at school, in German the verb is at the end of the sentence, not between the subject and object. Yes, German is RPN :)

So is Tibetan.  It actually makes it easier to learn conversational Tibetan because you generally know what is going to show up where in a sentence. It only becomes a problem when the clause gets really really long...
proceed until apprehended
 

Offline VK5RC

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38852 on: September 14, 2019, 09:43:17 am »
A long and sorry saga, how hard can it be to fix a 12MHz counter with discrete 7 series logic ?  Well if it is dunderhead VK5RC it can take a month or so. :wtf:
Long story short -  a buggered SN7400N and an ancient epitaxial transistor - I managed to find one of the transistors on FleeceBay, I wanted to keep it 'original'
EVENTUALLY I have got it working. Below it is reading a 12MHZ after 15mins warmup :-+
Whoah! Watch where that landed we might need it later.
 
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Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38853 on: September 14, 2019, 09:54:06 am »
Funny, looks like 11.9995MHz to me.  :-//

I tease you...good job.  :-+
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Offline nixiefreqq

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38854 on: September 14, 2019, 11:18:08 am »


hey oculus

wow.....really cool instrument.

however you accidently included some offensive material in the picture.

no need to apologize.

fixed it for you.

freqq

Accidentally? Accidentally??? Come on, you should know by now that it's 100% intentional.  :-DD

i offer you the olive branch of peace.

(please try not to poke me in the eye with it.)

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Offline nixiefreqq

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38855 on: September 14, 2019, 11:28:22 am »
A long and sorry saga, how hard can it be to fix a 12MHz counter with discrete 7 series logic ?  Well if it is dunderhead VK5RC it can take a month or so. :wtf:
Long story short -  a buggered SN7400N and an ancient epitaxial transistor - I managed to find one of the transistors on FleeceBay, I wanted to keep it 'original'
EVENTUALLY I have got it working. Below it is reading a 12MHZ after 15mins warmup :-+

nice!

why do you suppose they labeled it  "12.5 Mhz"?



was marketing making a point?

would 13 Mhz have been unlucky?

was it an inside joke?


some things just make you wonder.
"free range primate"
 

Offline VK5RC

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38856 on: September 14, 2019, 11:43:07 am »
It reads pretty reliably and sensitively up to about 13MHz then the sensitivity really starts to drop off. I suspect HP wanting a bit of margin for variation in parts etc, maybe also 100/8 ??
Whoah! Watch where that landed we might need it later.
 

Online bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38857 on: September 14, 2019, 12:15:19 pm »
I made a new avatar based on yesterday's discussion  :-DD

Source artwork:

https://imgur.com/a/Rc4ABPv
 
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Offline nixiefreqq

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38858 on: September 14, 2019, 12:30:30 pm »
you are a unrepentant rascal.

are there no limits to your wackiness?

next you will be soldering lids back on crippled decapitated regulators so that you can re-use the working bits.


ps  concerning that picture of the young lady and the calculator.  one I would like to have.  the other would annoy the piss out of me.  over time it would likely be reversed.



"free range primate"
 
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Offline ThickPhilM

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38859 on: September 14, 2019, 12:44:19 pm »
Bah, just spent the last couple of hours cleaning DVDs, 'Babylon 5 - The Ultimate Collection'.

People that can't handle things without leaving greasy fingerprints everywhere annoy the hell out of me. More worrying were a couple of discs that appeared to be delaminating, one was just heavy surface contamination, the other plays without incident, but for how long idk...
Even more disturbing was that two of the discs have suffered woefully amateurish attempts at cleaning, leaving a badly scratched surface that feels slightly sticky to the touch  :wtf:
These also both play, but again, for how long is anyone's guess.

Now I just need to work out the chronology so I can watch them in the correct order  :scared:

Got a TTi TA320S quite cheaply, but no pods, so if anyone knows where any are to be found, please let me know; I want to use it for projects, not have it become a major project  |O

On the subject of calculators, idk why anyone would ever want anything other than a Casio  :popcorn:
The font colour I use is an affectation that I make no apology for

nuqDaq yuch Dapol?
 

Online xrunner

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38860 on: September 14, 2019, 12:56:28 pm »
you are a unrepentant rascal.

are there no limits to your wackiness?

next you will be soldering lids back on crippled decapitated regulators so that you can re-use the working bits.

I am a Test Equipment Addict (TEA) - by virtue of this forum signature, I have now faced my addiction
 

Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38861 on: September 14, 2019, 01:22:32 pm »
I made a new avatar based on yesterday's discussion  :-DD

Source artwork:

https://imgur.com/a/Rc4ABPv

LMAO. Wise ass.  >:D :-DD :-DD
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Online tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38862 on: September 14, 2019, 01:46:53 pm »
Bah, just spent the last couple of hours cleaning DVDs, 'Babylon 5 - The Ultimate Collection'.

People that can't handle things without leaving greasy fingerprints everywhere annoy the hell out of me. More worrying were a couple of discs that appeared to be delaminating, one was just heavy surface contamination, the other plays without incident, but for how long idk...
Even more disturbing was that two of the discs have suffered woefully amateurish attempts at cleaning, leaving a badly scratched surface that feels slightly sticky to the touch  :wtf:
These also both play, but again, for how long is anyone's guess.

The thickness of the CD/DVD is carefully chosen so that blemishes on the "transparent side" are out of focus. The metallised layer is closer to the "picture side", and can be buggered that way.

Quote
Now I just need to work out the chronology so I can watch them in the correct order  :scared:

There are several orders :( The principal ones are the production order and the "air date" order, with the season 4 finale being shown at the end of season 5. You should just watch them in the order on the DVDs :)

Apart from that, have fun with the story. If season 1 bores you, it is "permissable" to skip to season 2. Thereafter, play them in order.

Be aware that JMS sets up story points in one season, in preparation for them to be important one or even two seasons later. There's none of this "reset the plotline at the end of the episode" that you find in other "deep space franchises" :)

After you watch an episode, have a look at the relevant http://www.midwinter.com/lurk/countries/us/eplist.html and see all the things you missed. Uniquely, the comments from JMS were made online immediately after each show's premier.

Quote
On the subject of calculators, idk why anyone would ever want anything other than a Casio  :popcorn:[/color][/b]

I've had two Casio calculators. One indicated 1+2*3=7, the other 1+2*3=9. Which flavour did you have in mind?
« Last Edit: September 14, 2019, 01:53:18 pm by tggzzz »
There are lies, damned lies, statistics - and ADC/DAC specs.
Glider pilot's aphorism: "there is no substitute for span". Retort: "There is a substitute: skill+imagination. But you can buy span".
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Online 0culus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38863 on: September 14, 2019, 02:47:48 pm »
I made a new avatar based on yesterday's discussion  :-DD

Source artwork:

https://imgur.com/a/Rc4ABPv

 :-DD :-DD :-DD

you are a unrepentant rascal.

are there no limits to your wackiness?

next you will be soldering lids back on crippled decapitated regulators so that you can re-use the working bits.


ps  concerning that picture of the young lady and the calculator.  one I would like to have.  the other would annoy the piss out of me.  over time it would likely be reversed.





One of them is super collectible.  >:D
 

Online 0culus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38864 on: September 14, 2019, 02:49:22 pm »
I don't get the fascination with propping up old calculators when 98% of us carry a device with us most times that will run emulators if being in the minority and a twisted perverted RPN lover is your thing  :-DD

https://play.google.com/store/apps/details?id=org.efalk.rpncalc&hl=en_AU

(Attachment Link)

There’s something about holding the thing in my hand that emulators don’t replace.

What you hold in your hand and what you do with that hand is maybe better done in private  :-DD




 >:D  :-DD
 
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Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38865 on: September 14, 2019, 02:49:53 pm »
Started up again? It's not over until the last equals button and the button pusher is 6 feet under  :-DD

Edit: I am trying to peel an LM723. I don't have a vice so this turns out to be a hell of a lot more difficult than it looks. Trying tin opener next  :-DD
Standard calculators far out number those RPN types so I think we'd win that battle, [emoji1787][emoji1787] just saying.

Sent from my POT-LX1 using Tapatalk

Who let Murphy in?
 

Online tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38866 on: September 14, 2019, 03:35:34 pm »
Started up again? It's not over until the last equals button and the button pusher is 6 feet under  :-DD
Standard calculators far out number those RPN types so I think we'd win that battle, [emoji1787][emoji1787] just saying.

Yes, but which of the two competing (7 or 9) "standards"? Just asking.
There are lies, damned lies, statistics - and ADC/DAC specs.
Glider pilot's aphorism: "there is no substitute for span". Retort: "There is a substitute: skill+imagination. But you can buy span".
Having fun doing more, with less
 

Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38867 on: September 14, 2019, 03:44:13 pm »
Don't care as long as I get to keep agitatin'.  :-DD

mnem
 

Offline BU508A

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38868 on: September 14, 2019, 04:05:50 pm »
As a student in the mid-90's a friend of mine and me bought a HP 48G / 32k RAM.
We have upgraded the memory to 128k RAM and it is still with me and working.
A TI-81 which I bought nearly the same time gave up some years ago. Bleeding Display.

Overview of the PCB:


Detail of the mod:


And the result:

“Chaos is found in greatest abundance wherever order is being sought. It always defeats order, because it is better organized.”            - Terry Pratchett -
 
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Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38869 on: September 14, 2019, 04:18:08 pm »
The replacement 465B PSU capacitors are installed. At bd139 and mnem's insistence I used the Ebay adapter rings to do the install rather than bodge it.  :P Mnem, I'll ask you again.....r  u fucking happy now???  :-DD

Seriously, those adapters did make it much easier and neater to install. Now to put it back together and smoke test.  :-+

 
An old gray beard with an attitude.
 
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Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38870 on: September 14, 2019, 04:27:07 pm »
Yes. Very.   ;D

Plus, it looks like little alien commandos on flying saucers in there...  :-DD

mnem
« Last Edit: September 14, 2019, 04:37:45 pm by mnementh »
 

Online bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38871 on: September 14, 2019, 04:36:52 pm »
Excellent work with the adapters  :-DD

It always hurts to look at the tiny ones these days.

Talking of which I nearly bought a stupid capacitor at the last hamfest I went to. It was 2.2F at 35V. Was a foot long and 6 inches across and weighed about 4Kg and had NO VENTS. I wondered if I could blow it up with my 6286A. 10A at 24V the wrong way should do it.  :-DD
 

Offline nixiefreqq

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38872 on: September 14, 2019, 04:45:28 pm »
antennae are mounted on the truck.

lead acid 30 Ah batteries and radios are installed.

tested good on all 5 bands when monitored with the rf explorer SA (that makes it TEA).

will be heading up on the mountain in 15 minutes.

6m, 2m, 222 Mhz, 432 Mhz, and 1296.  fuck 902....who cares?

and naturally it looks like storms are coming this way.

bite my fat old hairy ass.

edit   arrl fall vhf/uhf contest.


 
"free range primate"
 

Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38873 on: September 14, 2019, 04:58:17 pm »
antennae are mounted on the truck.

lead acid 30 Ah batteries and radios are installed.

tested good on all 5 bands when monitored with the rf explorer SA (that makes it TEA).

will be heading up on the mountain in 15 minutes.

6m, 2m, 222 Mhz, 432 Mhz, and 1296.  fuck 902....who cares?

and naturally it looks like storms are coming this way.

bite my fat old hairy ass.

edit   arrl fall vhf/uhf contest.

Have fun and stay dry.  :-+ Wet up here in NY too.
An old gray beard with an attitude.
 

Online bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #38874 on: September 14, 2019, 05:02:38 pm »
With all those antennas, don't forget to pack the porcupine repellent  :-DD
 
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