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Reviews (12)
Jan 01, 2018
Well Suited for My Particular Need
This is designed to let you essentially turn the orientation of the D-shaped IEEE-488 connector upside down to accommodate the orientation of your GPIB cable. In my case, what I really needed was a right angle conversion so I could plug in an Agilent USB-GPIB converter without it sticking two inches out from the back of my oscilloscope, which is pushed up against the wall. I was not able to find any such converter so I decided to make one. I disassembled this unit and made some "L" brackets to let me reorientate the male and female sides of the D-connector at right angles. Worked great.
Feb 17, 2018
One of the Finest Scopes of its Day - Light, Small and Fast.
2 of 2 found this helpful I Have used a Tek 485 as my main go-to bench scope for all general purpose trouble shooting and measurement. Rarely do I ever tax its impressive speed of 350MHz, but have on occasion challenged it with signals approaching 400MHz which it does not falter at. They do have some issues though, being that they are now well over 30 years old. Plan to experience capacitor end-of-life failures. The power supply is one of tektronix' early switch mode designs, and can be finicky. It is reliant on a switching transformer that has a history of being the weakest link in the system, and is only obtainable from another 485 donor scope.If you have one of these scopes, and plan to keep it in regular use, keep you eye peeled for a parts donor unit, and plan to replace the capacitors in the power supply and regulator boards, and to check the tantalum caps that feed off the various power rails. Otherwise this scope, like most Tek scopes is built like a brick outhouse, but behaves like a chicken on methamphetamines. Crisp, tight and fast CRT can get show me images that my $11,000 DSO can't always see, and when I want a simple but capable analog view, this is my faithful little workhorse. Though there are a number of custom unobtainuim Tek ICs and other critical parts, like that main switching transformer, I expect to keep this fine old scope sweeping until fate does us part.
Jul 24, 2018
Exact fit, does the job perfectly.
Exact replacement fit for the original part, to the point of being almost identical. Being that is just a temperature fuse, there's not a lot one could say about performance other than, it works. I assume it will last as long as the original, which is until my wife lets the lint filter get so stuffed up that it runs the temperature up too high.