Відео

The front panel design and even moulding of the handle are very Tektronix-like, haha! Nice beginner scope, plenty of life in it I'm sure.

Brilliant! Thanks.

For a "cheap" scope, it is remarkably well made. Would have been a shame to scrap it, but the question is will anyone now use it??

It's always capacitors...LOL. Another great video Ian.

Chinese caps in an expensive bit of kit - fantastic. Still, you replaced them with Jackcons so order us resumed 😂

Nice easy one this time - still fun to watch! =D

That really was an easy fix. The scope came from the UK Ministry of Defence, who probably had it on a shelf for 20 years before auctioning off, hence the lack dust. When I brought that scope, I brought several others of a similar vintage that were in equally good condition.

Only simple problem worth the effort to repair these scopes. A new one is only US $200!

An easy one! OK, who else saw right away the classic pattern of AC Humm when Ian first tried the digital store? 👍

Bravissimo

Nice to have a simple repair on such a complicated piece of equipment. Thanks for sharing.

11:50 the scope triggered on the junk signal when you plugged in your signal. "Reset" just resets the trigger, waiting for another one. You should have more subscribers, all your videos are so well done!

Had a Tek 2232, and yes the digital board decided to die, dead capacitor, a shorted Tek favourite, tantalum bead across the 5V rail. As I needed the scope that day, just unplugged the digital board, losing the ability to store, and the nice readouts, but the analogue side was still perfectly functional, so I finished the job, then sent it in for repair.

@5:00 caps at the bottom left are bulging… it’s always a crapacitor

I was surprised to see no numerical values on the CRT, goes to show the low cost. Always a stunner Ian *Cheers*

Ian, you are NOT in Munich, tonight? Shame on you. The Scots may show the Germans, how to play soccer..

Hey Ian im looking for replacement switch for my LT30/2 left switch with LED has seen better days any idea where i might get a replacement

I had an intensity pot problem with my old 422 from about 1968. It would hop from too low to too high. I couldn't find an exact replacement. I took it apart and found a dried blob of grease stuck to the wiping surface. Removed it and all is well. Not sure it deoxit would have helped there.

What an extremely kind gesture from Richard and I am so sorry to hear of his poor health. It's a great collection of parts and test gear probably amassed over decades, and it has gone to an excellent new home indeed.

UPDATE: So, a couple of days later the problem returned! So I used IPA and some slightly thicker paper to clean the contact again. I also found that those pots between the contacts are plug in modules, so I removed them giving me better access to the contact, this time I could give them a really good flush out. I also used an extremely soft professional artists paint brush (very small) and was able to wipe the Pcb down with IPA and underneath the contacts. The brush is so soft the contacts didn't even move. I also cleaned the pins on those plugin pot modules with IPA also. In addition I found the VAR pot on the Volts/Div adjust to be quite dirty, so cleaned it up with IPA also. It's working again, but I have to say, one or two of those contacts on the Pcb seem to have been soldered down squint, they are soooo close to the edge of the gold contact pads they sit on. Hmmm!

Great inheritance.

For some reason I got most excited when I saw the two art of electronics books. I've been wanting one of those. Just hard to shell out that much on a book for something I mostly tinker with in my spare time. Nice haul.

17:00 you could remove the attenuator. It's just a socket.

Umm the service manual actually explicitly tells you not to use de-ox it on the gold contacts (well at least the 475 one does and the 465 is really similar).

I repaired a teleprinter start up circuit using the paper and cleaner method on the relays once. I found the rougher, thicker recycled paper did a cracking job cleaning them 😃. Awesome video.

Got one as well, probably works and needs a clean...... And yes needs new fee, because they are rotten.

That heat shrink idea is genius! I might have to use that 🤓

What's the scoop on deoxit? I couldn't see the label on can but it seems it was D5, I'm thinking that D5 would be great on the switches as it doesn't leave a residue, but that F5 would be better for the potentiometers a it does leave a lubricant for smooth wiper action across the carbon track.

The good old paper trick, it does work well especially when used with Deoxit, I would have done the same to channel 2 as well though, if one is bad the other is probably close behind.

As those pots are upside down I would have also tried to get deoxit on top of it so it can run down the legs into it, that sometimes works.

If you start to see more issues with the volts/div dial I would recommend against using Deoxit to fix them. In the Tek465 service manual section on cleaning the attenuator switch contacts (which you cleaned in this video), they write: Cleaning the switch contacts should only be done using isopropyl alcohol, especially in the area of the vertical attenuator boards. Carbon -based solvents will damage the polyphenylene oxide boards used for the attenuators. Apply the isopropyl alcohol with a camel hair brush. Do not use cotton swabs as they tend to snag on contacts, possibly causing damage, and hold strands of cotton, causing intermittent electrical contact.

Beautiful peace of art almost, just the colours of the different parts. Must have been happy days. Nice tip with the heat shrink nozzle.

Title card says "ocilloscope".

It is lovely when our subs reach out and support the channel. Enjoy your gifts I’m sure like me, your audience greatly appreciate your videos and very high standards and excellent technical content. Keep up the good work. Sorry I haven’t commented on many of your videos I’m trying to spend less time online but be assured I’m a big fan. My best regards Chris

I love your content. Keep up the good work!

Amazing video. I have the same exact oscilloscope that needs the same clean up. Just got it and what I have seen it is a good unit. Even with some dodgy switches I was able to fix my old B&K oscilloscope.

I'd really suggest getting your hands on the Tek service manual. Tek makes all schematics and manuals available for download!

Great seeing a good look inside the 465, nice repair, I had no idea the switch contacts were made like that. I love analogue Tek scopes, I have a 2235, 2236 and a 2445A :) I would love to have a modular 7000 series one, and the curve tracer 🤔

I've got an old Tektronix 2211 that I bought off eBay in the late '90's for $75.00 and it works great.

Brilliant fix! Love the heat shrink idea!

You're a luck chap getting hold of a 465...they were a revolution when they were introduced all those years back. Always worth the effort unless they have been abused...top kit for sure.

I like the switches and lights on the front panel. I can't imagine what it would be like to design those PCB's by hand back then. I've done a few small ones in the past (school), quite fun to do. But such large PCB's... They are nice to see though.

Those things are wonderful, Cheers Ian :)

I've tried to bend those contacts before and FAILED. You must still have steady hands. Great video.

Man I LOVE the 400 series

For the dual gang pot, standing the scope on its face would get the De-Oxit down where it is needed. But I suspect it splashes around all over the place as it is.

A lot of junk in there too, hope you have plenty of space in the workshop?!

Seeing Richard's treasured items brought tears to my eyes.

Asking for free stuff to fill the workshop? That's RUDE!!!

What a generous donation to the cause.