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Messages - AlexanderHun
1
« on: January 16, 2024, 01:40:10 PM »
Hello! This industrial X-ray is a new piece of my collection, with a maximum voltage of 140 kV. Unfortunately, a ferroresonant transformer in its controller burned out, I had to repair it without any documentation. I am attaching a video of the test after the repair, one question: does anyone have the data sheet for the GE 140/5ö X-ray tube? https://youtu.be/NuB5jInMGcM?si=P0SVrNpfC5Pn24qD
2
« on: August 26, 2021, 10:21:21 PM »
I have a circuit diagram somewhere not exactly for this but it can help you a lot, I'll find you tomorrow.
3
« on: August 26, 2021, 09:57:20 AM »
Hello!
Thanks for writing, although I didn't have a controller like that. Some version, the type of connector for me, isn't like that, but it's not hard to decipher where it's going. However, this is a 200kV industrial X-ray, just be careful with it.
4
« on: February 09, 2021, 07:34:21 PM »
Hello! I would like to sell my collection rather rare X-ray tube, type: Phönix DRGDo 45/130 W I attach the ebay contact, thank you! I don't know English perfectly, I hope I did everything according to the rules! https://www.ebay.com/itm/353378200292
5
« on: August 13, 2020, 11:01:46 AM »
Hi! I improved the thing a bit, I can control the electrodes of the image amplifier via a serial port with an esp32 microcontroller, magnification, sharpness .... A taste of what I wanted to try for a long time:
6
« on: May 06, 2020, 10:22:14 PM »
Hi! I zoom in with commands sent on the serial port. I can change the voltage of the electrodes, including the focusing electrodes.
7
« on: May 04, 2020, 02:41:05 PM »
Hi! I managed to make a better video, I was able to connect the device to a computer on a serial port. I found the description of all the commands in it, I can set and query all the voltages, thus adjusting the image. https://www.youtube.com/watch?v=ZbiyzMtDGhk
8
« on: May 01, 2020, 04:08:34 PM »
Hi! I was able to test the X-ray image intensifier today, the conditions were not ideal yet. Unfortunately, the image is very out of focus yet, the shot was taken by a mobile phone, you have to find out how far the X-rayed object is from the X-ray and how far from the image intensifier. However, the amplification is very good, I took the pictures with a dental x-ray. The first video shows an ammeter, the second a cell phone. https://www.youtube.com/watch?v=bTMxFXKMTTohttps://www.youtube.com/watch?v=30w-cASQdvI
9
« on: April 28, 2020, 09:45:55 AM »
Thanks for the help, these connectors are old Russian standards, I managed to find all pins. I am currently focusing on the HV transformer.
11
« on: April 25, 2020, 09:59:10 PM »
Hi, I'll check in tomorrow. Camera is missing from the end, there is a 20mm imaging part that had a camera in front of it.
12
« on: April 25, 2020, 07:40:29 PM »
Hi! I got an X-ray image intensifier, unfortunately there is no description of it on the internet anymore. I turned it on, got the power, but there's on the nameplate I don't understand. Control voltage 1-3, does anyone have any idea how this worked? Measured at test points, voltages are OK.
13
« on: April 25, 2020, 01:02:01 PM »
Hi, you can buy it in a webshop in Hungary. It costs quite a lot, but it's worth it.
14
« on: April 25, 2020, 08:01:01 AM »
Hi, it will be filled with silicone oil, its properties are very good, it is water repellent, according to its data sheet its penetration is 14kV / mm, of course I vacuum it.
15
« on: April 24, 2020, 05:33:50 PM »
Test, so far without HV transformer, took two days before I found all pins (pinout).
16
« on: April 24, 2020, 06:39:23 AM »
Hi, yes, in oil, or in silicone oil. The latter was suggested to be better than transformer oil, I have no experience with it.
17
« on: April 23, 2020, 12:30:23 PM »
18
« on: April 21, 2020, 08:42:57 AM »
Hello! This is a 50Hz X-ray, the tube went with alternating current, in half wave. That’s the high voltage transformer, their primary coils are connected in parallel, controlled by a variac that is in the control unit. There are no multipliers, the transformer is almost 20kg, it could deliver 200kV. Before the owner disassembled
19
« on: April 20, 2020, 10:37:20 AM »
Hello!
This week the courier will bring the things shown in the picture, my question would be the silicone oil recommended for the high voltage transformer, what are your thoughts on it? Or should I stay with the transformer oil? I know I'll have to vacuum the transformer
20
« on: April 14, 2020, 03:41:39 PM »
Hello! Introducing my new toy, I recently managed to buy a high-voltage transformer for an industrial X-ray machine and the associated control panel. The high voltage transformer can supply voltages between 70-200kV, up to 10mA. It's still on the way for now, I ordered it, but I'll add more detailed photos, and I also have an X-ray tube that I can operate in this way.
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