开云体育

from Tim P (UK) Does anyone (Hakan?) have the documents detailing the conversion between rack / bench formats ? they are 040-0583-02 and 040-0584-03 I don't see how to do it without unsoldering the

Slight correction. From the manual, it appears TP60 (et. al.) has a 28uS period making that about 38kHz instead of 30kHz. Thanks, Barry - N4BUQ

you can just throw in a completely blank chip in there, no problem reading the old chip and writing in the new one doesn't do much and doesn't do any harm either as I have learned...specially now that

As far as I know, there is no menu accessible way to see the battery condition on the THS720. I think that got added to the THS730, but that may be wishful recollection on my part. One usability issue

Hello all, a TDS3054 (built in year 2001) shows the following symptoms when connected to power: - 'A system error has occured', Error Count =11, 'display error', goes away after short power off/on -

Harrison, If you suspect the multiplier is bad, you can disconnect its input by unsoldering the wire to the transformer. You can see that in the the picture of the HV board that I added just now here:

Hi Tim! Thanks for your response. I think my question wasn't straightforward - I'm looking for pictures from this special cart combinded with the DEC minicomputer. Holger

From Tim P (UK) I don't know if you have seen the P7001 section on TekWiki - it's under 7000 series, as it uses the 7704A. Lots of pictures of the 'guts' of the P7001 and some stuff on the

Hi Harrison, Yes, the 3x multiplier is U550. For mine, even after I replaced it, I did some testing on it and, at lower voltages, it would triple the input voltage; however, it appeared that at

Hi! I've added an old picture of a Tektronix DPO/DEC PDP 11/05 combination on a 202D cart to the photo section: /g/TekScopes/photo/252847/0 Has one of these machines survived? I'm

I have -151 ready, just waiting for "permission"(?) to upload. Good OCR and size reduced to 196MB with little quality degradation. Non-reduced is also available, almost same size as before. Raymond

In circuit tests of these components will be quite meaningless because of the low impedance components connected to them and the other semiconductors connected across them, such as CR556 across Q556

Barry; When you stated you replaced the multiplier, are you saying you replaced the U550 module? Harrison N1FAM

I hope this can be resolved. Unlocking - OCRing - relooking seems perfectly reasonable. I don't see how this violates whatever agreement. larry

Read out the voltages across C721. Also read out C741 and C761. Used the Beckman HD110 MM with the common to ground. C721; three of four pins read zero, both AC and DC. The fourth pin read 55.5V DC

Hi Harrison, Back in 2017, I worked on my 465M. The following is from an email I sent outlining what I did. Perhaps that will help since it sounds very similar to what you're seeing with yours.

I will check out voltages across C721. Since my last posting I did some reading after which I decided to look closer at the HV Oscillator and HV Regulator circuits. I did an in circuit check of Q556,

I'm afraid I've lost track of what we're trying to do here. As I understand, the main issue is having OCR'ed versions of the files on TekWiki that are available here: http://w140.com/tekwiki/wiki/RPR

This is a wonderful practice and I hope it returns soon. Vaguely related, this is also something I saw recently that seems very hacker friendly and maybe others on the group will enjoy:

If it's the same as the power connector for FET probes, I probably have one for you, could be NOS. Also, if its diameter is bigger than the FET-ones. I have a 4041 in the lab and will be there on