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Bet that would blow the gate on a MOSFET ;-) Craig

OK folks, I think I have the process in pretty good control. I am willing to cast some replacement feet for 453, 454, -A, 464, and I think they also fit the 465, 475, 485 series of scopes. (These

With thanks to Fred de Vries, I've posted a ZIPfile containing EPROM images for the devices in the 7D20. They're version 81.1, F1.03. Filename is 7d20.zip at the usual location and

Have seen some unbuilt Heathkits (scopes and other pretty trivial gadgets) go for astronomical prices, though I'm not not looking often now. Ego-bid war between two will do it: $900 IIRC, and several

Speaking of High Voltage - check this out.... http://www.unf.edu/~lsnedden/500Kv.mpg and the explanation..... http://www.wiseguysynth.com/larry/day.htm DEFINITELY LETHAL!!!!!!!!!

Ironically it was at Siemens where I was working for when one fellow got electrocuted. It seems he grabbed on to a 480VAC 3 phase buss while pulling himself up from underneath a linear accelerator.

Twenty years ago, when I worked for Siemens in Munich, after hours, if there was no one in the lab we were not allowed to work with anything electrical, that included 5 V lab supply, soldering iron

One of the better (and readily available) devices to painlessly dissipate static charge is a quarter coin. I hold on the most of the surface of the coin and touch grounded surface with exposed part of

I Was Working On A High Energy Strobe System On The Bench, Late At Night 26 Years Ago Using A 500v Regulated Supply, I Was Tired, And Had The Supply Set To Max Current, And Voltage. Being Tired, I Had

Oh dear - maybe I now class as an old timer ;-) I learnt respect for hight voltage in the 1970's when I built an experimental pulsed carbon dioxide laser. This thing had an array of high voltage

In the Tektronix book "Biophysical Measurements" book, it states that it only takes 10mA of current to stop the human heart if a circuit path through it is created (like hand to hand or hand to foot).

More about static electricity - it takes 5kV to even have a sensation from it, due to skin resistance, etc. That is why static damage is so easy. Some components like JFETS can be damaged at

When I was in technical school I spent many evenings and weekends repairing 50s TV sets and never had a problem keeping away from the HV. Then I spent 20 years working on solid state electronics,

Hi guys: If you read the info on the site there is a disclaimer that says that there may be omissions and that they are asking for information from the users to point out these problems. I believe

Anyone interested, item 3802128271 is for "TM503 DM501 PS501-2 DM501" at $99 buy it now. The seller says sold for parts, but at least the displays are lit, so maybe there is little wrong with

It all depends on the current. For an anode accerating system, there is very little (or no) current, so the power supply only has small capacitors in the voltage multiplier. There is maybe 10-20

Nice system. My every day 'scope is a 7704A with a selection of plug-ins depending on what I'm doing. I use the 7B80/85 combo though, becuase it allows you to do delta time measurements, whereas the

A friend of mine is afraid to work on a three gun projector, which coincidentally has the same anode voltage as the 7704, 7904, etc, 24 KV. It is my understanding that this voltage is not lethal,

Great scope. The timbases are older than the scope, but compatible. The optimal timbaes are 7B80 (horizontal slot 2, main) 7B85 (horizontal slot 1, delaying) The 7A18 are inferior to the 7A26, but