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Hi David, Albert was right, my manual is missing the same pages ! Herbert Am 23.01.2013 00:06, schrieb David Holland:

It looks like the tube has a factory defect where they failed to weld the pin 5 lead to the strap going to the astig element. I wonder if there is any way to externally weld it? Induction welding,

Keep an eye on your local Craigslist. I found a cheap authentic Variac from a ham radio operator. But something to consider about used Variacs is that the brush can be worn out, and it's a tough part

The probe transformer is easy to damage. It's sensitive to physical shock. When you can't balance out the DC on low ranges, it's very likely that the Hall sensor has been damaged somehow. Can't be

Hello-- Other trade names include "Adjust-A-Volt" and General Electric's "Volt-Pac" (the latter gets spelled various ways by auction sellers as "volt pack" and "volt-pack". 73-- Brad AA1IP

I scanned those pages, and processed it up into a PDF. I'll stick it on KO4BB. If someone wants a direct email I can do that as well. I put pages 22, and 23 back also in this collection. (Thanks to

Dick, Pl let me know when you next move house. 73s, Cslim, 9v1cs,

You should have been around when I moved to Tucson from Boston. To lighten the load, I gave away about 1/2 my stash. Included were two GR Variacs with Volt and Amp Meters. One 10 Amp and one 20 Amp. I

One last link, this explains the 50 ohm impedance and measuring RF and microwave frequencies. Good read! http://www.dkdinst.com/articles/50ohmnotes.html

I have never seen an original Variac. In the 1980s I bought a new Voltac - by Yokoyama Electric Works Ltd (not Yokohama). This is a 240V 300VA Type B-1, with output to 260V. (Australian mains power is

Here's a little reading material. It'll help you understand why using terminators and matching impedance, plus using attenuators, is a good thing. http://www.dkdinst.com/articles/atten.html

<steve.purcell.k@...> wrote: I have never worked on tube equipment where I thought it was necessary. I usually use my variacs for power supply troubleshooting where I already know something is

In order to ascertain serial number coverage of most Tektronix manuals (other than what you see on the front cover from time to time) Look at the parts list sections and the change sections The 10000

Here's the pattern I use: http://www.auroragrp.com/agi/tek/cap-adapter-sngl.pdf I use long bare #12 wires, about 10 inches long with standoffs formed at the PC end. That way I can thread the new cap

Here's the link to the pics: http://groups.yahoo.com/group/TekScopes/photos/album/2058104093/pic/list

I want to replace electrolytics in my 475 and not to worried about keeping the old cans. I have seen reference to using a "daughter" board to make the grounding through A9 with a modern radial lead

Steve, This has been discussed MANY times in this forum. Search on the messages for "variac". Consensus is that use of a Viarac is a bad method for anything with a SWPS i

Well, data point - I have 2 P6042s and I had 2 bad cables and no bad transformers. I think the cable design was so bad that the probe usually stopped working and was put away before the transformer

Variac was a trademark of the General Radio Company. There are also Powerstats out there. There are several over on the "evil empire", just search on "Variac". Don't gamble your priceless antique on

<steve.purcell.k@...> wrote: The Chinese variacs I've checked out have been OK. You would probably want to derate them a bit, especially for extended use. On the other hand, used ones often go