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The crashing is due to some kind of instability when the +5 VL has no load. If I add enough constant load on that supply, the off condition doesn't cause any trouble. It's not something shorting out,

Probing the AE-35 unit in 2001 A space odyssey Perhaps Tektronix P6006, Kubrick was a stickler for accuracy.... http://www.2001spacesuit.com/Images/AE35-1.jpg Jon

Re Probes, cable legnth.... The P600x had relatively thick cables, and massive screw on probe tips, hats. Meant for tube sockets and B+ voltages. Compensation was by rotating the probe body. The

Photo of my 536 in the photo library /g/TekScopes/photo/299466/3866580?p=Created%2C%2C%2C20%2C2%2C0%2C0

Hi Jim. Yes the 536 should be very useful to you. However, the problem will be where to get one. It is arguably one of the rarest of Tek models. And no, you can’t have mine! lol. However you can use

Thanks, John Kolb.? I do have a 5103N-D10 (working properly) and a 5113 parts mule, with a total of twelve 5000 series plug-ins in various states of operation.? Also a 7904 (focus problem - to be

Greg, I also take each knob off to oil the set screw and shafts. This makes it smoother to move and prevents freezing due to electrolysis. I will put a bit of oil on a flat blade screwdriver then put

Mark, Thanks for the reply. I also posted this on the TekScopes2 group and have many replies there. Here is a link to that thread: /g/TekScopes2/message/17100 With all the

Rebonjour Probes, as mentioned the P600x series was used at the time. The later probe's had wider BW but lower compensation C range. A point of history...Stanley Kubrick's 2001: A Space Odyssey

“According to George Lydeck on this group, the Tek 535A is the best scope ever for tube audio work.” Did I really say that? I think what I meant to say is a good tube oscilloscope, like the

That's a fine looking 10 x 10 equal grid on the CRT face of the 536 on tekwiki. I see how that would be the analog purist's favorite with 11 MHz bandwidth. Much finer than a 602 monitor...and with

As an EE, you may have been taught the term like I did in school 'it's broke'. The class and instructor laughed. A bit of New Year's humor. Likely you have at least one d-c restorer diode that is

Hello John, fabulous offer - have messaged you. (I haven't seen a copy of my sent message in my email client, so not sure where that may have gone?).

I have a Tek 485 that I have had and used lightly for 20+ years with no issues.? That is until last night.? I hadn't used it in couple of months. After turning it on I went to adjust the Intensity

According to Tektronix (back in the day)... The solder they used... for the metalized ceramic strips (the notches were metalized with silver.. and dip coated with the solder) The solder they used was

Bonjour à tous In 1960s Sidney S Smith was the audio and analog engineer at Marantz, Dick Sequerra was the RF genius. In 1971, I had the good luck to work with them at their newly formed Sequerra

The P31 conversion is done and looks great. Both CRTs are in very good shape and bright, with no burns at all. Still working on the other stuff. Will report next year. Ed

Hi Richard. I have plenty of these. PM me your mailing address and I will send you a set of four. Do you need all parts for each one ie the screw, plastic part, and the little metal thingy?

Hi Jim. To be frank, it seems a bit premature to look for probe information when you don’t have a scope, and maybe don’t know what you are going to use it for exactly. It might be better to look

Ed, My first thoughts after reading the descriptions are switch contact issues in the selector switches and or something in the routing logic that is on the back plane of the mainframe. If I remember