Tektronix 2465A oscilloscope demonstration

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Күн бұрын

This is a very quick demonstration of a Tektronix 2465A oscilloscope. It shows all four channels working, the timebase settings, delayed and delta delayed timebases, cursor measurements, risetime of 0.95ns, and stable triggering and display of a 1GHz signal.
www.martin-jones.com/

Пікірлер: 35

@LeeWalklin 2 жыл бұрын

Picked my 2465a up yesterday. What a scope. As you say, Tek certainly knew how to build these practically bullet proof machines! Have to change out the caps on the LV PSU and also the nv-ram battery... Love how they were also made in Guernsey. About 40 miles away from me. Never knew they had a facility on the island 👍

@mcac-youtube 4 жыл бұрын

Nowadays this scope is yet a great machine, a fantastic machine. Longlife machine.

@fxtrader6647 3 жыл бұрын

Since it uses a cathode ray tube, it is clear that it is an obsolete instrument. However, it is an excellent instrument with incredible performance. I have not used it but I have used the Tektronix 465 and the Tektronix 7313. I am a telecommunications technician, although I am now retired. I have worked for over 30 years in VHF, UHF and these oscilloscopes were my field instruments along with a Hewlett Packard spectrum analyzer and a Wandel & Goltermann generator. All were incredible pieces of equipment. Made to last for many years of heavy use. There was absolutely nothing that could not be measured with them. Even today, even though they are technologically obsolete, they are still very valuable and in many cases, much more reliable than any Chinese sampling oscilloscope. This video brought me nostalgia. I find it hard to accept that I am retired....

@cmjones01 3 жыл бұрын

Nothing obsolete about CRT instruments! I have a Tek 7904A analogue scope on my bench beside much more modern digital scopes, and the analogue machine tells me more things more quickly when I'm debugging than my digital ones will. They're fantastic tools.

@dakata2416 5 ай бұрын

What would make them obsolete? I would use a CRT over the laggy LCDs on "modern" scopes.

@diggleboy 4 жыл бұрын

Thanks for this great demonstration. I'm picking one up tomorrow at a great low price. Hope it works as specified in your video, otherwise, it's troubleshooting for me to repair and calibrate it. There are lots of spare parts for this scope on the internet, so I'm not too worried in keeping it going for quite some time in the future.

@makskk6spm275 3 жыл бұрын

Great review. Thank you. 1Ghz is amazing!

@cosmocramer1004 4 жыл бұрын

Just Got this Scope today from ebay nice video for starter ! Thanks

@monke4897 2 жыл бұрын

This helped me understand a bit more the oscilloscope cause i have a quiz on it thanks :)

@robertsteentjes3870 2 жыл бұрын

Nice to see that this scoop goes to the !Ghz

@marklowe7431 3 жыл бұрын

So good they should almost make them new again. I bet it would sell.

@robertsteentjes3870 2 жыл бұрын

Hallo cmjones01 si it pissoble to measure olsa HF computer frequeties measure with thuis scoop?

@tonysfun 3 жыл бұрын

My CRT sharpness is about like yours (my Tektronix 2465 DMS, not A or B!) - is there a way to sharpen the display to more crisp display? Thank you for your videos and even quick demo like this is!

@cmjones01 3 жыл бұрын

The sharpness on this one is absolutely fine - I wouldn't expect it to be any better. I have three other 2400 series scopes and they're all as good as each other. I think these CRTs have a post-deflection expansion mesh so they're never going to be as sharp as really old CRTs, but they're as good as you'll get for the era and speed. Keep the brightness down for best results.

@tonysfun 3 жыл бұрын

@@cmjones01 Thank you very much!

@factorylad5071 3 жыл бұрын

Swap out the line output capacitor or get a TFT.

@tonysfun 3 жыл бұрын

@@factorylad5071 Do you know what value the cap should be? In case TFT, if I understand that right, where and what part to replace with what value/type? I can do just about anything, if I have plenty of information. I'm little old, so I rather do it only if I can follow little more specific schema/instructions. If you know of a video on youtube, please let me know. Thank you very much for quick response! Have a great weekend also - you all also! ha ha ha

@factorylad5071 3 жыл бұрын

@@tonysfun Tony you have misunderstood me on TFT , I meant a solid state screen , digital scope, they are very good value and have way more functions than you would get on this beast. If however you are stuck with your out of focus CRT , I would carefully examine the components around the line output stage which is much less I think than 1 uF , line voltage rated + 25% and is most likely to be a polystyrene type. Hope this helps. Happy tinkering.

@McPh1741 Жыл бұрын

I have one of these but it did not come with probes. Can you tell me what probes will work with it? I’m relatively new to o-scopes and there are many probes available.

@cmjones01 Жыл бұрын

You can use any probes you like, more or less. The 2465A would originally have been supplied with some smart Tektronix ones rated for the full 350MHz bandwidth, but there's no point in searching for those. For everyday use, the cheap 10x probes available on eBay (I'm using some here labelled "P6100" with my 2465 right now) are perfectly adequate. You'll need to adjust the high-frequency compensation using the little adjuster screw on the probe or plug - read the scope or probe manual to learn more. If you want to get in to accurate really high-frequency (>50MHz) measurements, then you can start worrying about better probes, but it's a complex subject and is about more than just the probe.

@robertsteentjes3870 2 жыл бұрын

Hallo, is there a FFT command on this scoop? what is the purpose of this command FFT for signals good for?

@cmjones01 2 жыл бұрын

No, this is an analogue scope which can only view signals in the time domain. It doesn't digitise the signal and therefore cannot perform an FFT on it.

@MUHAMMADYAWARIFRAHEEM 3 жыл бұрын

Beauty

@SDsailor7 Жыл бұрын

How do you hook up the oscilloscope to the component under test? or is it not necessary? How do you do the testing of the item you are trying to troubleshoot? that is what i want to know but there are no videos showing it they all show the same thing like this person is doing.

@cmjones01 Жыл бұрын

This video is just a demonstration of the oscilloscope and that its features are working as they should. I made it because I was selling the oscilloscope and wanted to show buyers that it worked properly. How to use those features to examine and troubleshoot an electronic circuit is an enormous topic, and not one that could be covered in a 10-minute video. The key is to learn some basic electronics and understand what to expect at various points in a circuit. The oscilloscope allows you to see what's going on, and it's then up to you to compare that with what you think ought to be happening.

@robertsteentjes3870 2 жыл бұрын

What tonegenerator do you use to trigger to the 1Ghz

@cmjones01 2 жыл бұрын

I used an HP 8657B signal generator.