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2465B trace and readout focus at different positions of focus knob 3 messages
Hi, Have a late model 2465B. Noticed today that the focus point for the readout is at one point on the focus knob. But it I also want to get an optimal focus for the trace, I need to turn the knob to
Hi, Have a late model 2465B. Noticed today that the focus point for the readout is at one point on the focus knob. But it I also want to get an optimal focus for the trace, I need to turn the knob to
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By Mark Hatch
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First mixer diode on a 7L18 : how to test (and possibly replace) ? 4 messages
Dear group, I am fixing a deaf 7L18, it is responsive to a 510MHz signal injected into the second mixer, I still have to test the 510MHz IF, I am anticipating that the first mixer diode has failed (li
Dear group, I am fixing a deaf 7L18, it is responsive to a 510MHz signal injected into the second mixer, I still have to test the 510MHz IF, I am anticipating that the first mixer diode has failed (li
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By Jose Luu
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The first International Mail was delivered today 4 messages
The first of the international shipments of Peter's books was delivered this morning in The Netherlands. Another one is out for delivery this morning in The Netherlands. The one that went to Japan is
The first of the international shipments of Peter's books was delivered this morning in The Netherlands. Another one is out for delivery this morning in The Netherlands. The one that went to Japan is
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By Dennis Tillman W7pF
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Tek 576 step generator problem 17 messages
Hello Guys, i need help with my Tek 576. Theres something pretty strange with the step generator... On some settings of the number of steps the lines start to flicker/jump around like something is not
Hello Guys, i need help with my Tek 576. Theres something pretty strange with the step generator... On some settings of the number of steps the lines start to flicker/jump around like something is not
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By Dave S.
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760 D intensity doesn't work
Hi Tek folks, Working on a 760 D, when I got it the power supply was cycling and the high voltage would not come up. Lifting the output of the quadrupler let the low voltage supply come up, so I assum
Hi Tek folks, Working on a 760 D, when I got it the power supply was cycling and the high voltage would not come up. Lifting the output of the quadrupler let the low voltage supply come up, so I assum
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By radeng
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John Glass
John Glass please contact me; your email address fails. -- Best wishes, Larry McDavid W6FUB Anaheim, California (SE of Los Angeles, near Disneyland)
John Glass please contact me; your email address fails. -- Best wishes, Larry McDavid W6FUB Anaheim, California (SE of Los Angeles, near Disneyland)
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By Larry McDavid
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1s1 on ebay 15 messages
This looks pretty good. I don’t know anything about the seller though. https://www.ebay.com/itm/Tektronix-1S1-Sampling-Unit-Oscilloscope-Plug-In-Module-Free-Shipping/393086861150?hash=item5b85cd7f5e:g
This looks pretty good. I don’t know anything about the seller though. https://www.ebay.com/itm/Tektronix-1S1-Sampling-Unit-Oscilloscope-Plug-In-Module-Free-Shipping/393086861150?hash=item5b85cd7f5e:g
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By John Williams
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Update on Domestic US Book Delivery Dates 11 messages
I just discovered the printed receipt I received from the post office last week (when I mailed Peter Keller's books to US addresses) contains Estimated Delivery Dates. It estimates that ALL of the boo
I just discovered the printed receipt I received from the post office last week (when I mailed Peter Keller's books to US addresses) contains Estimated Delivery Dates. It estimates that ALL of the boo
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By Dennis Tillman W7pF
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2mV and 5mV ranges read the same on 2236 10 messages
I'm not sure if I'm just holding it wrong, or if there is something terribly wrong with my 2236, but I noticed that the 2 mV and 5 mV ranges on both channels read exactly the same. I first noticed it
I'm not sure if I'm just holding it wrong, or if there is something terribly wrong with my 2236, but I noticed that the 2 mV and 5 mV ranges on both channels read exactly the same. I first noticed it
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By Jeff Dutky
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Grid Bias Adjustment on 475A 140 messages
I've been trying to run through the calibration process for the 475A that had a blown Z-axis amp, and I've run into trouble right off the bat. I was unable to get a visible spot on screen at the +15 V
I've been trying to run through the calibration process for the 475A that had a blown Z-axis amp, and I've run into trouble right off the bat. I was unable to get a visible spot on screen at the +15 V
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By Jeff Dutky
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2445B delayed By sweep 3 messages
Hi, I'm wondering if what I'm seeing is normal or not. I had some narrow pulses wide apart to display, it was give or take 1kHz and spikes were some 20ns wide. When I used the delayed B sweep I could
Hi, I'm wondering if what I'm seeing is normal or not. I had some narrow pulses wide apart to display, it was give or take 1kHz and spikes were some 20ns wide. When I used the delayed B sweep I could
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By Ondrej Pavelka
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5S14N what should I know? 4 messages
Hi, I managed to get a 5S14n on eBay for my 5440, I reckon it is somewhat of a rare item. While it is still being shipped, I'm preparing for what I will need to do. So far I've already read through th
Hi, I managed to get a 5S14n on eBay for my 5440, I reckon it is somewhat of a rare item. While it is still being shipped, I'm preparing for what I will need to do. So far I've already read through th
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By Szabolcs Szigeti
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Tektronix TDS684A 3 messages
Hi, I emailed about this before. I have a Tektronix TDS 684A scope, and it is in very good condition, and it was almost working, but now it is not. I bought it from a surplus place, and I had seen it
Hi, I emailed about this before. I have a Tektronix TDS 684A scope, and it is in very good condition, and it was almost working, but now it is not. I bought it from a surplus place, and I had seen it
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By Thomas Dodge
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7633 no high voltage -1475V on test point 2 messages
I just repaired the time base 7B53A and a new problem appears. An acrid smell came from the oscilloscope so decide to test the scope for 3 hours and the trace and readout disappeared. I measured the l
I just repaired the time base 7B53A and a new problem appears. An acrid smell came from the oscilloscope so decide to test the scope for 3 hours and the trace and readout disappeared. I measured the l
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By Fabio Sturman
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DSA602A parts available 4 messages
If anyone needs DSA602A boards or mechanical parts let me know. Unit is disassembled but metal will be recycled and boards listed on EBAY in the next few weeks. ed
If anyone needs DSA602A boards or mechanical parts let me know. Unit is disassembled but metal will be recycled and boards listed on EBAY in the next few weeks. ed
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By Ed (SCSKITS)
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PM - Address Re: [TekScopes] I built a TM500 mainframe tester, and updated the design. Someone might find this useful? 5 messages
Hi Larry- #17 ( after the EWs), Renée Deeter 1200 Independence Rd. Mokelumne Hill, CA 95245-9632 IF you need the phone 209-293-3129 I will await the request for funds. Thank you for all your hard work
Hi Larry- #17 ( after the EWs), Renée Deeter 1200 Independence Rd. Mokelumne Hill, CA 95245-9632 IF you need the phone 209-293-3129 I will await the request for funds. Thank you for all your hard work
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By Renée
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1S2 plugin wanted in Europe
Tek fans, I'm afraid I haven't been active on the list for a while because emails started bouncing for some reason and groups.io cut me off. I think I've fixed that now, though, so can join in again.
Tek fans, I'm afraid I haven't been active on the list for a while because emails started bouncing for some reason and groups.io cut me off. I think I've fixed that now, though, so can join in again.
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By cmjones01
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Tek 2712 GPIB board 3 messages
Hi! Does anyone have a spare 2712 GPIB board available? I am using a Prologic GPIB to USB converter, and the setup had been working great for a few years. Abruptly it ceased communicating, so I tried
Hi! Does anyone have a spare 2712 GPIB board available? I am using a Prologic GPIB to USB converter, and the setup had been working great for a few years. Abruptly it ceased communicating, so I tried
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By Howard Hoyt
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Free stuff before E-waste. 5 messages
Clean up time. With recent health changes I have to reduce my long term projects, encouraged by a higher in house authority. So, Two Scopes are going. One is a partial 7633. Whats left besides the fra
Clean up time. With recent health changes I have to reduce my long term projects, encouraged by a higher in house authority. So, Two Scopes are going. One is a partial 7633. Whats left besides the fra
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By Robert Simpson
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T1801 for Tek485??
Folks, While chasing down a short I removed T1801 ( from the inverter board, but botched it and I need a replacement. On-line searches yield few and costly options. Is there one out there in TekScopes
Folks, While chasing down a short I removed T1801 ( from the inverter board, but botched it and I need a replacement. On-line searches yield few and costly options. Is there one out there in TekScopes
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By Ron Rossi
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