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Well, the buyer has turned uncooperative, said something about just needing a scope to make some measurements on a current project, and has formally requested a return thru eBay. So it looks like I'm

I have used Tektronix scopes since the 60s. They have always been the gold standard, at least as far as I am concerned. Now my old Tek scopes, I have 4, are getting old and keep requiring service. The

https://www.ebay.com/itm/Tektronix-TM500-extender-card-with-test-points-and-gold-edge-card-contacts/184688519484?hash=item2b004b293c:g:gp4AAOSw1m5gAv6x

And poutine. I miss being able to drive up from Boston MA to spend a long weekend in The Great White North, Montreal, riding my bicycle, drinking beer. Not necessarily in that order. One of these

Thanks for your suggestions. I did the oscillator part first. 1. reducing the -5500 cathode voltage to -4400 V has no effect. Oscillation still stops at about 2 1/2 minutes 2. +120V and +30V (derived

Thanks for the suggestions. 1. Supply voltages check: I remeasured the supply voltages (I repaired these earlier including rectifier diodes and a filter cap). +270V, +15V, -30V all perfect, no ripple.

Thanks Ed, yes, the behavior of the tracking generator is as you write, I have a maximum then the level goes down by turning the Tracking Adjust control left or right. I was careful to scan right so

Ed, Wow. How we keep beating this to death.? I gave data on different LEDs,? gave you credit for suggesting capacitors across outputs and I used 15uF because I have lots of them, by experiment used

[email protected]> wrote: I snipped the pins of the relays individually with a good pair of flush cutters, then de-soldered them individually. Even so it felt a little iffy, and one of the relay

Is he the one that is selling them on Ebay? I just bought one there and it is NICE! You could message the seller through E-bay and see if that's him. [email protected]> wrote:

I’m interested in these extenders as well. Tried emailing Dan last night and my email bounced. Regards, Jeff

Hi Ed, 1uF ceramic cap in each. BR, Jouko

Did you include the bypass capacitors on the photo-voltaic bias outputs? There should be one across each, so four altogether. They are essential for best noise performance. Ed

I have a type 284 that I am working on again to see if I can’t get the td pulse side working again. Where I am at now is the last time I was in the pulser I was able to confirm that D180 is good on

OMG, do I see the list erupting into an OT travelogue ? :-) Liam

I can do better: I'm in a 500 souls pueblo in Spain..... :-) Leo

Quit whining, I'm in Canada. You know: Mounties, beavers, maple syrup, ice and snow and Bob 'n Doug McKenzie, eh ? https://en.wikipedia.org/wiki/Bob_and_Doug_McKenzie Liam

Apparently dnmeeks has left this forum. On the off chance that he will be selling another batch of extenders some day, does anyone have his current email address?

I have a P6046 that is missing almost all of its accessories. I need the 10x attenuator, part number 010-0361-00 and 2 of either or both the swivel probe tips, part number 206-0162-00 (hex base) and

I just resurrected a 2465A CT. I first want to express my appreciation for the threads here that were such a great help, especially Gregor's "noise on readout" adventure, I thought I would summarize