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Test Equipment Anonymous (TEA) group therapy thread
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Robert763:

--- Quote from: Cerebus on July 12, 2022, 06:58:39 pm ---
--- Quote from: Robert763 on July 12, 2022, 06:32:27 pm ---New TEA
No prize, just a quiz, what is it?

--- End quote ---

The units on the display give away the basic functionality.

Edit: Oh, and if that's not in need of repair and actually has a sample in it, it's fairly hot. (125 mCi)

--- End quote ---

That photo is from the ebay listing and not the one I got.
Packing was awful. Bubble wrap on two items in an oversize box. The cylindrical unit weighs 30lbs.  :palm:

Fortunatly it survived and does not have any contamination.

@Vince, its not a scale, its a Capintec CRC-15R Dose Calibrator.  Basically a very high accuracy gamma radiaion detector calibrated to indicate the activity of radioactive sources. You do however need to know what the isotope is. The detector is a high pressure ionisation chamber (the cylindrical bit) with a center well for the sample. The pressure in the chamber is 175 PSI. It covers 9 decades of measurement.
Robert763:

--- Quote from: tggzzz on July 12, 2022, 08:41:03 pm ---
--- Quote from: mnementh on July 12, 2022, 07:33:43 pm ---
--- Quote from: Robert763 on July 12, 2022, 06:32:27 pm ---New TEA      No prize, just a quiz, what is it?   
--- End quote ---

Sinclair laptop and a elephant bog roll...?

*clicks on pic*

Phone dialer and a tractor air filter?  :-DD

mnem
Thank you, thank you... I'll be here all week. Stop by the door and get all my best gags on CD...

--- End quote ---

Co 57, Ga 67, Tc 99, In 111, I 123, I 131, Xe133, Tl 201, and a thick walled container.

It is for measuring radioactive nucleotides used for medical imaging.

--- End quote ---

Yep, dose calibrator for 0.01uCi to 8 Ci of gamma emitting isotopes.
bd139:
Well I got pissed off with this bloody 465B ROM not arriving so I scraped the entire contents of the state chart out of the manual via apple wonderful image ML shit into a file (suck on that windows lamers), checked it against the service manual contents and here we go:


--- Code: ---10000 1111 1111 1111 1111 1111 1111 1111 0111 ok
10001 1110 1110 1110 1110 1110 1110 0110 1110 ok
... snip ...
01110 1101 1101 1101 1101 1101 0101 1101 1101 ok
01111 1101 1101 1101 1101 1101 0101 1101 1101 ok

--- End code ---

This was then sorted and post processed with shell + awk into a binary map that resembles the ROM contents. It's a 256x4 ROM aka 74S287 as I think someone specified earlier when I was moaning about it.


--- Code: ---00000000 1101
00000001 1101
... snip
11111110 1101
11111111 1110

--- End code ---

Now what to blow it to. Well what have I got floating around. I have some ancient PIC16F84's and an ICSP so that'll have to do.

Work very much in progress. I haven't written any PIC assembly for about 20 years  :-DD .. this will be post processed with the LUT...


--- Code: ---; fuck you test-equip

start
        movlw 0xf
        movwf TRISA, 0 ;porta = address
        movlw 0x0
        movwf TRISB, 0 ;portb = data
againmofo
        andwf PORTA,0xff
        call iamrom
        movwf PORTB
        goto againmofo

iamrom     
        addwf pc
        ; AWKSTART
        retlw b'00001101'
        retlw b'00001101'
        ...
        retlw b'00001101'
        ; AWKEND
end

--- End code ---

More coming soon. Probably just in time for them to find the bastard thing.

I may just buy a shit arduino mini and a couple of 74S287's and try building out a programmer rig for them. It feels like it might be less painful than actually getting the PIC programmer to work on the mac.
mansaxel:

--- Quote from: mnementh on July 11, 2022, 10:18:10 pm ---
--- Quote from: tautech on July 11, 2022, 10:06:27 pm ---
--- Quote from: mnementh on July 11, 2022, 09:48:46 pm ---
mnem
Still 10x the car as my Mk1 Capri, tho. :P

--- End quote ---
Which motor mnem ?
--- End quote ---

The little Cologne V4; what were they, a 1500...? 1300...? Ghahhh.  :palm:   Can you believe I scratch-built headers for that fuxxoring little automotive backbirth? I thought it'd be just like my Cologne-V6 Spitfire project, only more room to work. Well that part was true... every time I'd swing a wrench, my elbow would go through some newly discovered rust spot.  |O

mnem
"The gift that keeps on giving..."

--- End quote ---

"Ford is a company that builds cars in order for Opel to not be the worst brand around."
mnementh:

--- Quote from: mnementh on July 12, 2022, 01:25:53 pm ---

Shopping Prime Day... so far, the only thing that really caught my attention was the Kindle for Kids and this: GrubHub free for a year. We don't order takeout often, but especially for my day off, more choices is a nice thing.
--- End quote ---

https://www.amazon.com/ADATA-Legend-Internal-Gaming-ALEG-840-512GCS/dp/B09H8R24SL

ADATA 500GB/1TB PCIe Gen4 NVMe SSDs - $35 & $85 with $10 off coupon

https://www.amazon.com/ADATA-SU760-512GB-Internal-ASU760SS-512GT-C/dp/B07TDW86SQ/

ADATA 500GB SATA SSD w/SDRAM cache - $35 with $10 off coupon (good to wake up older laptop or PC; ADATA is known decent "B" brand)

Still looking...

mnem

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