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I have had axial tantalum capacitors leak and destroy nearby PCB traces, specifically C6246 and C6341 in a Tek 1502 TDR.

Better yet replace them with higher voltage rated ones if they are available. 20V tantalum lasts forever on 5V rail as well as 35V one on 15V. I can send you a handful :) They _ALWAYS_ leak sooner or

The only type you have to be concerned about are bead tantalum capacitors used for local power supply rail decoupling. Colour is unimportant. They will be 6V rating on 5V rails and 16V rating on 15V

Same as for the Xformers Kurt, very valuable. Thanx for that, René

Very interesting and good piece of information. Thanx, René

I am guessing that this subject has been hashed over a number of times but as I am fairly new here i will ask away. I see on the different boards from the scopes I now have some from same unit and

The termination is not required for the low and medium frequency compensation which is just as well if a x10 probe is used because then adjusting the x100 attenuator in a 465B requires a high level

Timothy, You do not mention the use of a 50 ohm termination at the scope end of the BNC cable.This termination is necessary in order to have a proper signal.Compensation adjustments should be done

mailto:mustang_gt_y2k@... I used to work on those old 465's and the diode switching circuits are fun to troubleshoot.? It was around 30 years ago, but you could check the diodes in

This is important. You can ignore the attenuator compensation to start off with by working only with the 5mV/div range where all of the attenuators are switched out. If you cannot get the transient

For what it is worth, the woman was based on Marilyn "Fuzzy Pink" Niven from the time that I assume he was dating her. https://tvtropes.org/pmwiki/pmwiki.php/Main

Hello Timothy, You don't give much details about the conditions and scope settings you used... What is the frequency of this signal you pictured or, alternatively, what is the Horizontal sweep (time /

Joseph, I got it working at about 1MHz. This is not high by any standard but I was excited to make it oscillate at all. Frequency depends on RC network time constant. Leo

Hi Kurt, thanks for these really interesting downloads.

The gems keep coming - thank you Kurt! Craig

http://w140.com/tekwiki/images/1/14/157-_checked_and_tested_tubes_specs_and_procedure.pdf http://w140.com/tekwiki/images/3/3d/Tek_raw_tube_and_aging_specs.pdf

Wow - that is a real find! Thanks for that!! Craig

http://w140.com/tekwiki/images/3/3d/Tektronix_transformers_design_and_manufacture.pdf

Leo; What frequency range have you discovered with the "tunnel" diode that you chose? Joe

There was a short story that this was based on, IIRC>