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Mark, Thank you for the detailed list of replacement parts. I am working my way through repairs to this scope (I have a list with at least ten entries, including recapping the power supply and

I’m glad to hear that Dennis is doing well, and look forward to him rejoining the conversation, when he is able. As for TekScopes2, I second the recommendation to join that group as well as this

The manual is available at w140.com . My low-serial-number 453 lost B trigger in 2000-something. I traced it down to tunnel diode D675. It worked after I installed a spare, then failed again. This

Good points Harvey.

In a word, not a good idea to combine both groups. The philosophy behind any group lays with the owner and moderators. The moderators are ethically constrained by the owner, it is, after all, his

Inflation. Harvey

I don't think it's critical to do the upgrade, but it does help with the reliability of the unit, hence the reason Tek made the upgrade in the first place. :) If you are inside the unit doing repairs

Before I list on the auction site I thought I’d sweeten the deal here. I’ll include a front cover (not in the best condition but will protect the scope during shipping) as well as a set of

Correct; everything appears to operate normally except that you can't actually see where the Delta cursor is!! That is to say that the brightness of the Delta cursor is suppressed (invisible) compared

Rejoin? Should be re-instated, without formality. RL

FWIW, the item "HP Elastomeric Keyboards + Trim", those 3 parts in the top left of the image are the power and CRT display soft buttons for the Tektronix TDS500/600/700 series scopes. ;)

Hi all, I have a TDS620B here I'm doing battle with. After repairing the power supply, Iit seems to be failing SPC on channel 1. I've tried replacing the hybrid modules with spares, to no effect, and

On Tue, Feb 15, 2022 at 02:44 PM, Lawrance A. Schneider wrote: > > On Mon, Feb 14, 2022 at 01:28 PM, Jim Ford wrote: > > > > > A dispute with group co-owner Michael Dunn, as I understand it. > > > In

This is what I wrote in the 'Dennis' subject heading: A dispute with group co-owner Michael Dunn, as I understand it. In a private message, Chuck told me roughly the same thing. I do not have

In a private message, Chuck told me roughly the same thing. I do not have permission to post that message and thus, will not. I have not asked Mr. Dunn for his version of the dispute as I have never

My guess is de display PCB. It depends, if you have the older 2465 it is the horizontally placed PCB in the richt end corner. If you have the newer smd type A5 PCB the display pcb is included on the

photos worth a million words

I'm just finalising another 2465 repair project and discovered that the Delta V/T cursor is not visible. The Delta REF cursor is present and adjustable in either V or T mode but in both V & T mode the

Thank you, David. DaveD

Chuck has been invited to re-join Tekscopes but has declined. If you wish to partake of his wisdom you are welcome to join Tekscopes2. Cheers, David