开云体育

Thanks for doing that. I looked at that whole area and I didn't find any bad components. I have also suspected that maybe C485 (3.3uF) was bad. It tests as open with ESR meter and ha a very funny

Hi Greg, Yes, unfortunately the ER1400 is rather difficult to deal with outside the chassis or without the GPIB option. Programmers to read and write it were far and few between, and virtually

Luca, Since R1071 is burning, C1071 is bad. This is one of those RIFAs that needs to be changed out with new. This type can be 630V type film. The two that need to be an X1 or X2 type are C1016 and

1. Those voltages are correct if you measure when the sweep is trigggered. They revert to the schematic values with a free-runing trace. 2. On my 453 (c 1970) the ripple & noise on the +12V and -12V

Due to start-up circuit and loopbacks, difficult to debug Use isolation transformers on mains, following PSU flowchart Check the power transistors, rectifiers Any blown up power semiconductor will

Hi Tek Group, I have a Tek 2465 that has power supply issues. I have followed the instructions from the Tek Service Manual, and found that the INVERTER DRIVE portion of the inverter board is

Pat; it would be helpful if you could identify which version of the 453 you have. Then, measure & post some DC voltages thro the X amp with the shift control centred. I have spares for these scopes.

I hope not, because if it does it is only visible to those who read the group via email. Those of us who only use the Web interface can never see it. Yes please. EJP

This is all well timed and awesome information. I was looking at the Pasternack gear because that is what was popping up in searches. Fortunately no money has changed hands yet. Ill be speaking with

Hi, You might want to cull your links a bit, a lot of that extra stuff is tracking information, and the links don't seem to work anyway.... I would suggest to uninstall whatever is causing that, it

And in the era of paper, much better catalogs.? Pasternack's always seemed to be so cheap in quality.? Hardly any info/data.? We used them as an alternate source of last resort. -Dave

Greetings, I have the following Tektronix PAPER manuals that are surplus to my needs. Models: 1a1,7a16p,1a2,7a18,7a26,7b53a,7b80 7b85,j16,c30a,c50,51,52,c59a,c70 134,176,tm501,am503,520a,535a,576

Thank you. That is a pretty good idea. I think I will do some searching this week, when businesses are open, to see if I can find a compatible replacement connector, male and female. If that fails I

Mark, I can appreciate the conservative approach to dealing with this device given the limited R/W cycles. There may be something that happens during a calibration sequence in addition to the new

I hope this works! Ken

Instead of including the link I will share the original email in case I did something wrong. I will forward it next. Ken.

I have a local e-waste disposal point near me, run by the county. I’ll have to check, but I’d bet that they can handle mercury without much fuss. — Jeff Dutky

Hi Greg, I have not seen any en-masse R/E/W refresh behavior for the ER1400 in the 2465. Most (or all) of the ER1400 is read on boot to verify the checksum but that probably doesn't count as a

I will check them out. I have a mini circuits DC block for the spectrum analyzer that is really nice. Was reasonable priced, As reasonably priced as a DC block well in to the Ghz can be. If that is

I had to check w/Wikipedia, but it says the open circuit voltage of a mercury cell is 1.35 V, and that they hold their voltage very level for most of their lifetime, so perhaps 1.25 is near end of