As per title
Old Kikusi long gone
Not exactly brimming with the cash at the mo.For audio and video use.
Or would a 465 or 465B be better as parts seem more readily available.
Ta for any help
Smiffy
Old Kikusi long gone
Not exactly brimming with the cash at the mo.For audio and video use.
Or would a 465 or 465B be better as parts seem more readily available.
Ta for any help
Smiffy
Tough call, both are adequate scopes. The 465's are easier to repair but then again, are more likely to need them. I think I might go for the 2445A depending on condition.
Ta
There are a few 2445As on fleabay at the mo.Around the £250-£350 mark.I was thinking a good quality analogue scope would be a better bet than a digital one.I have a feeling you need to spend considerable more on a digital one to get a reaaly good one
Smiffy
There are a few 2445As on fleabay at the mo.Around the £250-£350 mark.I was thinking a good quality analogue scope would be a better bet than a digital one.I have a feeling you need to spend considerable more on a digital one to get a reaaly good one
Smiffy
Tektronix 2445A is a lovely scope. So is a 465, but given the choice I'd take the 2445A any day.
The 2445/2465 scopes have a custom hybrid inside (U800) which gets real hot, and is a common point of failure. When they go, the only place you can get another one is out of another scope. It's a good precaution to add a heatsink to this IC (plenty of info on this).
The 2445/2465 scopes have a custom hybrid inside (U800) which gets real hot, and is a common point of failure. When they go, the only place you can get another one is out of another scope. It's a good precaution to add a heatsink to this IC (plenty of info on this).
Cheers All
Will grab the 2445A.
Smiffy
Thanks for the Info Sheldon.
Smiffy
Will check with seller but presume calibration is the same as other scopes with the front calibrator hook
Will grab the 2445A.
Smiffy
Thanks for the Info Sheldon.
Smiffy
Will check with seller but presume calibration is the same as other scopes with the front calibrator hook
The calibration output on the front is for adjusting probe compensation, nothing else.
If it's been calibrated in the last 10 years and hasn't been thrown from the roof of a mid-size building, it should be spot on. Even if it's a tiny bit out, it's only a CRO with no storage, so who cares.
But it's a great 150MHz scope (that can be modded to the 2465A standard for 400MHz bandwith), 4 channels, cursors etc...
If it's been calibrated in the last 10 years and hasn't been thrown from the roof of a mid-size building, it should be spot on. Even if it's a tiny bit out, it's only a CRO with no storage, so who cares.
But it's a great 150MHz scope (that can be modded to the 2465A standard for 400MHz bandwith), 4 channels, cursors etc...
there's a couple of line caps and resistors that need to be changed also. google for 2465 reconditioning.
24x5A is a great scope series.
mlloyd1
24x5A is a great scope series.
mlloyd1
Ta Mlloyd1.
Found a good link going to condor audio
http://www.condoraudio.com/wp-conte...nix-2465B-Oscilloscope-Restoration-Repair.pdf
2445B but cant imagine there is a great diif between A and B
Thanks all for the help.I'll let ya know when I get it
Smiffy
Found a good link going to condor audio
http://www.condoraudio.com/wp-conte...nix-2465B-Oscilloscope-Restoration-Repair.pdf
2445B but cant imagine there is a great diif between A and B
Thanks all for the help.I'll let ya know when I get it
Smiffy
Condor audio is the right link!
I think the guy even sells a kit of replacement caps if you need them.
Enjoy the scope when you get it and best regards!
mlloyd1
I think the guy even sells a kit of replacement caps if you need them.
Enjoy the scope when you get it and best regards!
mlloyd1
These are wonderful 'scopes. You will be pleased to own one.
A while ago I found a 2445 in a dustbin. It turned out to have a faulty U800 (horizontal driver). After much waiting, searching and dumpster diving I found a 2445A (I think it was an "A") which had been smashed to pieces, however the U800 chip was present and once transplanted, the 2445 came back to life and is now full working order!
A while ago I found a 2445 in a dustbin. It turned out to have a faulty U800 (horizontal driver). After much waiting, searching and dumpster diving I found a 2445A (I think it was an "A") which had been smashed to pieces, however the U800 chip was present and once transplanted, the 2445 came back to life and is now full working order!
Its on its way.Should be here Thursday.
Starting off being used to diagnose a faulty PAL output on a laserdisc player
(CLD 2950)
Smiffy
Starting off being used to diagnose a faulty PAL output on a laserdisc player
(CLD 2950)
Smiffy
I just gave away 14 TEK scopes but I kept my 2465 and my 7704A! No dijjital,scopes here. The ones I could afford are pretty useless to me.
Mark
Mark
I'm looking forward to getting it.Will rip the top off and check all looks ok.
Spent time looking and found an older higher quality analogue scope was a better option than the equivalent price digital scope.
Spent time looking and found an older higher quality analogue scope was a better option than the equivalent price digital scope.
Cracking bit of kit.can anyone recommend a reasonably priced probe to go with it?
Ta for any inf
Smiffy
Ta for any inf
Smiffy
I bought a couple of these a few months ago and so far have been pretty happy with them for my needs:
ebay scope probes
Price is great and quality appears to be OK as well.
I would certainly be interested in hearing feedback from others who have more critical needs than me.
mlloyd1
ebay scope probes
Price is great and quality appears to be OK as well.
I would certainly be interested in hearing feedback from others who have more critical needs than me.
mlloyd1
What ever probe you buy needs to be direct/X10 switchable probe. Tektronix and H-P probes tend to be somewhat fragile. But they are delicate instruments.
Mark
Mark
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