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I would try to put a little thin oil down the shaft. Take the knobs off and just apply a drop or two to the shaft and allow it to soak in for a while. It may take a few applications to break it free.

For the 465, it's almost a bucket list sort of thing. This scope was the goto guy during the adolescence of computer history and I'm sure many of us could fill up this list with war stories where the

Hi, First posting on this group, hope someone can help.... I have a T935A scope which has developed a problem and I'd like to try and fix it as its a very useful portable scope. Basically two of the

I also own both a 465 and a 454. The 454 has a smaller screen and 50% greater BW. However in tests I very recently made, both scopes would display and (barely) trigger on a 200mhz signal from a GDO.

That is great news. Sometimes direct observation can point directly to the area of the circuit where the problem is. I always install sockets if possible. I hate having to desolder a part more than

You need two oscilloscopes so you can use one to fix the other and if they are different types so you can cover more applications, then hen you need a parts mule for each so that is four. My mistake

The 454 and 465 series both use tunnel diodes which seem to be the most common point of failure and the most difficult parts to find replacements for. The 465 series was built for a long time so spare

Dave - Where did you get that little bearing you used to repair the motor? Dick

There is a special place in hell for the guy that throws all the logic analyzer pods and leadsets away when the gear is sold, along with all the scope probes and scope covers. somewhere out there is a

I have both a 465 and a 453. The trace might be a little crisper on the 454 and the controls might be a little larger. But from using both, I'd get the 465b and look for a parts mule for the day when

Please read the original message #88725 in this thread. Albert

Hi Albert, they must have had headache that time ;-))) Can you tell the Ebay item number ? Herbert Am 18-02-2013 16:34, schrieb Albert:

Hi David, So far I didn't find effect of S-6 blow-by adjustment on sine wave amplitudes. I probably did something wrong, since the effect on square waves (tilt) is considerable. A change of C20 in the

Just about the same question was asked last month: http://tech.groups.yahoo.com/group/TekScopes/message/86479

My vote is for the 465B. YMMV

Hi Herbert, The confusing situation is that there were two different probes (a voltage probe and a current probe) with the same number P6022. Maybe not at the same time. Last mention of the voltage

I have an opportunity to get either a 454 or 465. Spec wise, either will meet my need, both are working and there is no difference in cost. From what I have read, the 454 contains no proprietary parts

Hi Albert, it is a current probe, for use on 1MOhm inputs with and Bandwidth equal or larger than 300 MHz. 1mA / 1mV (8,5kHz - 100 MHz) 10mA/1mV (935Hz - 120 MHz) usefull for development in switched

It's a DP-100 Digital Video Probe in mint condition. It works in TM500 or TM5000 frames. I don't have a P6454 or P6460 to go with it, but I see that QService currently has a P6460 available. "The

Thank you for the information - that's kinda what I expected but I wanted to make sure. Thanks again. Mike