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<http://w140.com/tekwiki/wiki/Main_Page> nonIonizing EMF wrote:

Would be nice if more Tektronix related information was on Wikipedia. Thinking I can make a Tekwiki wiki on Wikipedia and maybe add on the Tektronix Wikipedia Wiki also. Looks like the following

First, let me say that I have several 223x family scopes and had very few problems with them. I did hav

Ok, but by who? You? Colin.

as the subject says, taken.

Assembly: CRT Circuit (8) New el. caps. Transistors checked with multimeter (don’t own a working curve tracer until the said 7603 is repaired. So stupid!). Read that TO-3 are factory selected and

I am interested in the scope. I have a Fedex account, so if you can drop it off at one of their locations I can take care of the shipping costs from my end. I have a specific use for the scope and it

I don't need it, but I figure I'll rescue it later today as I'll be in that neighborhood. He wants $25. You can have it for that plus whatever actual shipping is to you. I'll box it up and weigh it as

Hi Bruce, Don't get discouraged by your initial problems and spectacular fireworks. Do you have phone with an camera? Sometimes the more experienced techs can spot what is wrong from pictures. It

Steve, I guess in all the years I have never seen a semiconductor mounted via a conductive pad when connection to the thermal surface is required or desired. Usually the device is directly mounted to

Hi Chuck, I have written lots of my own monitor test routines to gather information on the ports, stack contents, set breakpoints, memory organization, etc. These are the clever tricks of the trade

Hi Nigel, The on-screen readout relies on very small currents to properly decode what letters, digits, symbols, and multiplication factors to use. It is not unusual that the switch contacts that

Hi Leo No worry. It happens. Sure I will check the component. I confirmed that the scope is still working with external supply. But before going further I want share with you my experience during the

Hi Max, I think the extra 3.9 ohm helps a tiny bit (makes the snap-off current to the TD somewhat stronger) but in my opinion its not the problem. Since at 15.5 V I suspected a wrong state of Q86/Q88

Some progress. Just now (in Italy it's 9.40 p.m.) I carefully measured the parallel R65/R68 with my Fluke 8040A, with a reading of 3.3 ohms. No good. I carefully soldered a 3.9 ohm resistor, the only

Hi Dennis, I get that you like puzzles, and that explains my interest very well. I would suggest that you will have more luck if you follow the ICE direction, though. As you are probably aware, an ICE

I found these at DigiKey: https://www.digikey.com/products/en?keywords=NTE%20TP0001 Note that they are an insulating pad which it sounds like what you originally found. For boards that connect to the

Hi Chuck, I understand exactly what you are saying. Call me crazy. But I have disassembled enough firmware to know how to tease out all the information I need to eventually understand everything it

Bergquist (now Henkel/Bergquist) manufactures an array of thermal management products. One of these, “Silpads” is a product I have been using for replacement purposes. It is a flexible, rubbery

Hi Albert, these are the effects of work fatigue when I get home.... Here is the correct phrase: "The pot R90 (trig level) is almost fully CLOCKWISE (it's in the original position when I bought the