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Dave, Since I am new to this forum I am not sure how to have these pictures posted or the usual protocols for doing so.? Please advise me on this. But, I am including a drawing and two pictures to

This thing baffles me! I have checked and rechecked all the connections from the modules to the motherboard, I've even redone all the solder joints on it, but still no luck. Also, the probes work,

Anybody has a scanned copy of the Sony/Tektronix 318 logic analyzer with full schematic? The army manual that floats around the web is missing some pages. Thanks.

That one works as well for me... David

As I have learned so many times the hard way, there are several apps on the web that do this automatically. One I found to be particularly helpful is this one that will calculate to any precision you

Well gang, sending in Lotus 123 apparently did not work so I will try sending as an OpenOffice file. Reed

Thanks David. I will re-send it using Open Office files.

Worked for me..... Very useful, IMO. Loads ok with OpenOffice, Thanks! David

Nothing works, back to the drawing bored!

Well gang, maybe the third time will bear fruit. I shortened the file name. If this does not work then save the files PAR.* in a folder and open with your spreadsheet program. I did not test it in

I just tried to read the file PARALLEL.WK1 that came back form Tekscopes and it was corrupted. I will re-attach another copy. Lets see how this one works.

There was a thread a few weeks ago about a parallel resistance calculator. I created a spreadsheet that allows you to instantly select a pair of 5% resistors to yield just about any resistance value

See my U800 heat sink: Tek_U800_heatsink4.pdf Dave

Oops, wrong post reference, my last post, 89603 was in ref. to post 88852, not 7360. (Goodness knows where THAT came from.) ~Michael

Can you please give the link? Thanks, Dave The spead sheet posted at Tekarc was very helpful and still relevant. ...Mac

Please post photos & drawings of your heat sink to the Photos area & Files area on the group's page on the Yahoo Groups web site. Thanks, Dave Second, I built a heat sink for U800 by modifying an old

Yes, it is possible with an HP8640B, but probably not with 8656B because of lower maximum amplitude. I have done it with a 8640 before I got my SG503/504 (and made the SG-504 leveling head from the

To Cliff and others, Cleaning out old scopes is a topic that has been answered in great detail several times over. I scanned and published the original TekScopes article on how Tek does it. It is in

Hi, Great report. Jerry Massengale

Most likely C1101 and C1102 on the low voltage power supply are bad resulting in the unregulated -8 volts being out of spec. These two capacitors are on the A3 board.