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Hi everybody and thanks for having me here. I also post on TekScopes but don't see why I could not here as well. Just me for the context: Retired EE, analog and RF mostly, built my first scope when

Radu, the mentioned Super Lube has NLGI 2 what says, that is it "soft" = normal softness. It is incompatible with some rubbers, and has only good compatibility (= no long term safety) with

Dear all, I happened to destroy this knob while trying to fit it in. It broke in dozen of pieces so it is impossible for me even try to glue the pieces together to allow me to draw a sketch for 3D

Lubriplate has been my go to...no problem on plastics, seems to be really stable even per the datasheet...use sparingly is my only advice. also approved for mil contract applications. I know nothing

Thank you all for sharing your thoughts. Based upon recommendations here and some other research, I've narrowed down my choices between: - Super Lube-21030 Synthetic Multi-Purpose Grease - Lubriplate

Radu, AFAIK there are greases, e. g. some silicone types, that won't dry out and are safe on plastics. (But silicone grease can solve silicone rubber.) I don't think there's a problem, if the grease

Radu, Some of the trouble with grease is that it can Crack. This is accelerated at higher Temps Most greases are a mineral oil base with some thickener to improve the waterproofing and stictivity.

Thank you all. On a quick note - I am only concerned with the mechanical aspects of the switching. To avoid the risk of dripping and/or ending on unintended recipients (electrical ones), wouldn't a

Jon, Just letting you know the attenator switch design in the 7a19 and 7a29 are completely diffrent than the design is all other 4xx and 7xxx plug-ins and scopes as these are 500Mhz and 1GHz vertical

Hello Today, Isn't that roller some kind of plastic, mine are deteriorated. Oil might damage it, I used GC lubriplate. Dallas

Ragu: Bonjour, Search both TEKscopes at Groups.io and EEVblog as well. Look for Tektronix cam switches/vert attenuators/7A29 1/ The PCB and atten modules are damaged by most cleaning INCLUDING deoxit,

Radu, I used a small bit of sewing machine oil on my. But mine just needed to rollers lubricated. I have hear others needed to service the plungers as well. I have not needed to take apart my

Hi all, I've just been "tipped" by a good friend the 7A29 has a very delicate input switch - mechanically, the rollers need some lubrication to perform well and last. I appreciate the heads up, as the

Sounds like the little catch is still engaged in the scope frame. If so can you remove the cover nearest the latching mechanism and look down in there with a mirror to see if you can disengage it? I

Sometimes if lucky and can access both sides of a plugin a strip of plastic bottle , or even a wide tie wrap / cable tie slid and wiggled under and forward will slip the catch up and allow

Michael, Kind of did just that... I flipped the scope upside down, removed the bottom panel, *tried to* remove the rail (didn't work, as it's tucked flush and tight under the plug), but then inserted

Radu, I had this issue some time ago on a 7633.? From my foggy memory, I pulled the bottom panel, removed the screw that retains the black guide rail for the stuck plugin, then pulled the rail and

Hi all, I have a 7k plugin I thought I successfully repaired the pulling mechanism (the finger pull knob broke from the plastic insert that is attached to the spring, and I epoxy glued it together,

the cartridge has a shoulder that prevents it from coming out. If you can replace the inner bulb with a LED it could look quiet original. Stefan

I'd probably cut the cables and sub an LED+esistor - AFTER checking that there was in fact +5 on the wiring. Cheers! Bruce Quoting Stefan <fres@...>: