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So I received my $137 "for parts" 7104 today. Aside from some dents and a slightly dim readout, I can't find a thing wrong with it. It was sold without plugins, so maybe the seller didn't have any

I use both, a Variac and a "Dim Bulb" tester. Sort of a belt and suspenders approach, but it works! Of course you need to stock up on 100 watt bulbs while you can still find them! Just Google "Dim

If anyone in the NYC area needs a high-power regulated DC power supply, I have a Lambda LK-362-FMOV. Input: 220VAC. Output: 0 to 60VDC, 30A max. Is is described here:

The P6108 is a member of the 5 mm probe family. The 5 mm refers to the diameter of the ground sleeve. The ground wire for this probe is the same one used on the P6105, P6106. and the older P6053

Hi Tom, That's what I read somewhere, that the -00 tube was for the early units. The one in my scope is the -10 and it does not have the mesh. At least it is not brought out on pin 12 like in the

Use of a Variac with old tube equipment is to protect the power transformer as mush as possible. Vintage equipment, especially antique radios and test equipment, many times have unique power

Hi Tom, I think the CRT for your 2232 is identical to the one in a 2215A (154-0861-00), unless you have one of those late 2232's that has the shorter HV lead on the CRT (154-0861-10). The HV

I read the various replies and think you got some good advice. If I can be so bold I would take the conversation in a couple of directions it didn't go. I would have perhaps hopped if you are indeed

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