Just in case you have some cash left after that Comodore64 and want some of these analogue boards, here are the last "anti-hoarding" links:
https://www.ebay.de/itm/High-Precision-10-V-Reference-Analog-Devices-AD587JN-AD7535JN-5x-OP177/154410695222
https://www.ebay.de/itm/High-Precision-10-V-Reference-Analog-Devices-AD587JN-AD7535JN-5x-OP07CJ/154410692288
https://www.ebay.de/itm/High-Precision-10-V-Reference-Burr-Brown-REF102AP-AD7535JN-5x-OP177/154410705574
The one who receives it first should creat a topic about "dissecting" and reversing the devices, I will gladly participate, congrats to Ulrich (no connection with the seller) and that was it.
Cheers,
DC1MC
I'm the happy buyer of 2 of these boards but due to real life implications it will take time to do a deep dive into the boards.
I'm a silent reader of the TEA topic because I'm sure I do not suffer from TEA
To avoid any infection with TEA I started selling some old unused equipment during the last year and I do not have any interest in boat anchors.
In the last 12 month I bought only a new SIGLENT SDG2104X+, a HP 34401a DMM, a HP 53131a counter, a SIGLENT SDG2042X, a RIDEN 6018 PSU, a Uni-T 612 LCR meter, a Uni-T UT181A multimeter because of
the great display, a dozen OCXOs, 2 GPSDO (SAMSUNG and SYMMETRICOM), a bunch of 5 video distribution amplifiers for 10 MHz distribution, some other GPOS stuff and about 50...70 little grey bags from China arrived.
And I'm with Tony Albus, I have the strong gut feeling that it's time for a Siglent SAA3021X+ ... No, I'm not infected....
Why did the RAF purchase the C17 and the Airbus A400M? Don't they basically fulfill overlapping roles?Yes they do to an extent, but they both have different load capacity and operational requirements. The C17 has the largest load space and can carry 69 tons while the A400M carries has a smaller hold and can manage 37 tons and so the A400M is the more resourceful for those seeking to transport items to dangerous locations because of the risk of sucking dirt into the engines on unmade surfaces with the jet engines of the C17.
Its 24degC outside, I'm drinking a Harp and doing BBQ. Life is good
Commiserations on it being Harp.
Can you really still get that stuff? I haven't seen that on a pump or even in a can in the UK for years. Given the swill that a worrying number of Britons will drink under the label "lager" it might be surprising that we've given it the cold shoulder, but that we have.
Poms used to drink the most godawful crud------Watney's "Red", anyone?
The absolutely worst that I ever drank was called "Alsopp's" lager, which came in a sickly yellow can, predicting the contents.
The Chandris line ships used to stock up on whatever they got cheapest, from Alsopp's as the worst, through decreasing levels of awfulness, via "Fix"(arrrgghh!), Courage lager (Blecchh!), up to reasonable to good (Oranjeboom, Beck's, VB, etc.).
Coming off the ship in the UK, we were confronted mainly by a desolate waste on the beer front, with a few tolerable, like the aforementioned "Harp", Carling black label, Newcastle Brown, "Ewer's Lager" from Scotland, & a few others.
That was, of course, in the bad old days, pre the "Real Ale" movement!
Woaa, so many beer snobs. I guess I'm not going to tell you what I drink in term of wine and where I get it.
Hey, we won't judge, unless you tell us it's white, comes from Canadian Tire in gallon plastic containers, and would go down well with a certain generation of Austrians.
More OCXO shenanigans.
Decided to give one of the OCXOs a winter overcoat and see how it performs in that. So, a nice warm jacket made of closed cell polyethylene foam (the kind that truly careful equipment packaging is made from). The OCXO's the right way up this time, insulated on all sides and the leads led out of holes made in the bottom of the foam with a bit of stainless steel wire heated up on the gas stove. Agains, a little uncalibrated 100k NTC bead thermistor taped to the OCXO. Taped to the underside this time, theory being that I'd mount an SMD thermistor on the board to monitor the OCXO temperature in its final resting place. Given the mechanical as well as thermal sensitivity of crystals, it strikes me that this might not be too bad a way of mounting the crystal anyway.
So, tailoring:
Warm up curve:
Section from the last half hour of monitoring where the temperature curve is essentially flat, with a different scale so we can see what the variation is once it's 'stable'.
d(temp)/dt plotted as well with both to get a feel for rates of change, stability, and noise in the temperature measurements. I'm thinking of using d(temp)/dt as a way of detecting that the OCXO has reached a comfortably stable operating condition, so I want to see the temperature derivative for that reason too.
Why did the RAF purchase the C17 and the Airbus A400M? Don't they basically fulfill overlapping roles?Yes they do to an extent, but they both have different load capacity and operational requirements. The C17 has the largest load space and can carry 69 tons while the A400M carries has a smaller hold and can manage 37 tons and so the C17 is the more resourceful for those seeking to transport items to daggers s
Nice 7.5 digit DMM from Hioki.
Didn't know that they have something like this in their portfolio.
https://www.hioki.com/en/products/detail/?product_key=6317
Instrumex has a used one but with a new calibration certifikate. (NAWTS)
https://www.instrumex.de/de/8943
Just in case you have some cash left after that Comodore64 and want some of these analogue boards, here are the last "anti-hoarding" links:
https://www.ebay.de/itm/High-Precision-10-V-Reference-Analog-Devices-AD587JN-AD7535JN-5x-OP177/154410695222
https://www.ebay.de/itm/High-Precision-10-V-Reference-Analog-Devices-AD587JN-AD7535JN-5x-OP07CJ/154410692288https://www.ebay.de/itm/High-Precision-10-V-Reference-Burr-Brown-REF102AP-AD7535JN-5x-OP177/154410705574<- This model is gone !!!
The one who receives it first should creat a topic about "dissecting" and reversing the devices, I will gladly participate, congrats to Ulrich (no connection with the seller) and that was it.
Cheers,
DC1MC
I'm the happy buyer of 2 of these boards but due to real life implications it will take time to do a deep dive into the boards.
I'm a silent reader of the TEA topic because I'm sure I do not suffer from TEA
To avoid any infection with TEA I started selling some old unused equipment during the last year and I do not have any interest in boat anchors.
In the last 12 month I bought only a new SIGLENT SDG2104X+, a HP 34401a DMM, a HP 53131a counter, a SIGLENT SDG2042X, a RIDEN 6018 PSU, a Uni-T 612 LCR meter, a Uni-T UT181A multimeter because of
the great display, a dozen OCXOs, 2 GPSDO (SAMSUNG and SYMMETRICOM), a bunch of 5 video distribution amplifiers for 10 MHz distribution, some other GPOS stuff and about 50...70 little grey bags from China arrived.
And I'm with Tony Albus, I have the strong gut feeling that it's time for a Siglent SAA3021X+ ... No, I'm not infected....
Hi Mounty,
Any experience with this Hioki?
It is from 2015.
Frans
in other news, got 2 self imposed training tasks:
port a CPU core to a specific FPGA
port a more complex core to a bigger FPGA
(6809 and RiscV)
Why did the RAF purchase the C17 and the Airbus A400M? Don't they basically fulfill overlapping roles?Yes they do to an extent, but they both have different load capacity and operational requirements. The C17 has the largest load space and can carry 69 tons while the A400M carries has a smaller hold and can manage 37 tons and so the A400M is the more resourceful for those seeking to transport items to dangerous locations because of the risk of sucking dirt into the engines on unmade surfaces with the jet engines of the C17.
I believe, but have not checked, that props give better thrust at low airspeed, which is advantageous for quick steep departures.
Of course if you put a big enough engine on it, you can make bricks and lawnmowers fly.
No affiliation, but may be of interest "HP Keysight Agilent 10811-60102 OCXO Crystal Oscillator", shown working, £50 starting price
https://www.ebay.co.uk/itm/HP-Keysight-Agilent-10811-60102-OCXO-Crystal-Oscillator/184761227617
Why did the RAF purchase the C17 and the Airbus A400M? Don't they basically fulfill overlapping roles?Yes they do to an extent, but they both have different load capacity and operational requirements. The C17 has the largest load space and can carry 69 tons while the A400M carries has a smaller hold and can manage 37 tons and so the A400M is the more resourceful for those seeking to transport items to dangerous locations because of the risk of sucking dirt into the engines on unmade surfaces with the jet engines of the C17.
I believe, but have not checked, that props give better thrust at low airspeed, which is advantageous for quick steep departures.
Of course if you put a big enough engine on it, you can make bricks and lawnmowers fly.Well, according to my son who is the expert in these matters, the RAF purchased the C17's as a stop gap while waiting for the A400M to be delivered. They were so impressed with the C17 that they purchased more of them and when the A400M was finally delivered, it was as not good as the C17 and is proving to be too complicated and thus unreliable in service.
So thats a start, also all the serial /usb/LAN connected....On a pure practical note, that lovely monitor and keyboard are looking really precarious perched like that