Quick Scope Question

I need to pick up an oscilloscope on the cheap, and I notice a lot of Tek

465's have been going through eBay recently, in the $150 to $250 range. I am used to newer scopes, so I haven't had the opportunity to use a 465 before, though I have a hazy "feeling" that they were supposed to be decent, though somewhat dated.

I'd appreciate any comments for or against this scope, regarding durabilty, usability, trace quality, and how much longer I can expect one to operate in this stage of its life. 100Mhz is enough for my uses.

Thanks

Reply to
Garrett Mace
Loading thread data ...

I understand that they are very goo, and that you should expect at least 10 years of service.

Reply to
Robert Baer

I have had a few 465s, and continue to repair orphans when they land on my doorstep.

They are a decent unit. The biggest single trouble I have is that most, if not all, of the semiconductors are in sockets, and after 30 years the corrosion routine sets in. Usually just a wiggle will fix it up. There are also a few proprietary Tektronix ICs, but I have never had trouble with those. I also have trouble with noise in the the trimpots and attenuator switches, which are just little jumpers on the PC board. These can usually be cleaned by flooding them with Freeze Mist, which I like because it leaves no residue.

Units are fairly east to service, not too many layers deep. I don't mind using one. If the CRT is good, they should hang on for quite a while.

(Shameless commercial plug) If you are perchance > >

Tek

I am

before,

though

durabilty,

operate in

Reply to
BFoelsch

well i have a 464 and its aprox 70 Mhz scope as far as i know. i think the 465 is a 100 mhz the 485 i have is a 300 Mhz. etc. depending on what your doing its ok..

Garrett Mace wrote:

Reply to
Jamie

Jamie wrote in news: snipped-for-privacy@corp.supernews.com:

464 should be a 100Mhz bandwidth(at -3db point) in non-storage mode. You need calibration of the vertical amp and attenuators.
--
Jim Yanik
jyanik-at-kua.net
Reply to
Jim Yanik

Actually, those sockets should not corrode, because they were gold plated.

Reply to
Robert Baer

Robert Baer wrote in news: snipped-for-privacy@earthlink.net:

The IC pins that got stuck into them were not gold-plated,though.I've seen IC pins turn black with corrosion.Some TEK products had service notes about replacing all the IC DIP sockets because of IM problems. For a 1410 mainframe and all 6 of it's modules(video test generator),that was a major PITA.That's 20-plus PCBs loaded with DIP sockets.

--
Jim Yanik
jyanik-at-kua.net
Reply to
Jim Yanik

Just wanted to say thanks to those who responded to my earlier question. I decided to pick up a Tektronix 465B, which arrived today. Works well, is in perfect shape, came with accessory bag, original manual + four probes, some probe accessories, replacement screen cover and fuses, even the original customer questionairre. All for only $100 + $25 shipping on a Buy It Now auction.

It was pretty funny, the day before I won this one, I was watching a scope auction for a Tek with two probes. Normally when you get a bunch of bidders who know what they're doing, they'll wait until the last couple minutes and then throw in a bid. They might or might not get it, all part of the game. Well...there was one bidder who kept jumping in and placing bids, fighting to stay on top. A couple other people got all riled up too. The price kept going up and up, to $270 not including shipping, and it looked like this guy had won. I was out of it when the auction passed 200, but watched for what I knew would happen.... After about a dozen bids by this individual, no one else was bidding anymore. It got down to ten seconds...then...CRACK! sniped in the last three seconds. I've seen it before but it was just funny, because he'd gotten all competitive and was probably sitting there gloating how he "showed" all of us.

I have found that on eBay...no matter how good a deal seems...there will ALWAYS be a better deal coming down the pipe. Typically when I look for something, I spend two weeks checking around and losing auctions. But if you're patient, you'll find a great deal. I once lost a bid for a $40 power supply, then a day later got one three times better for $15. Same deal on

12VDC inverters, got four of those for $5 each once.

Anyway, it looks like the scope could use a twitch to the right on trace rotation, so again thanks for the advice, this looks like it'll be a good scope for home.

Reply to
Garrett Mace

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.