Jim Cathey wrote: >> And which ones [Tek scopes-of-death] would those be? >> > > 2465, etc. (If I remember the number right.) We had them > at work once, along with many other models of various vintages, > and they were the ones you always reached for first. In fact, > the Bright Eyes 2467 was the big kahuna. Crank that sucker up > in the dark, shield the tube face to your eyes, and look for > 'hair' on the signals. >
I have a 2213 in the closet, that I use on those rare occasions when I need a 'scope these days. It's a nice piece of equipment; I hope it doesn't die any time soon. In college we used the modular Teks, but I can't recall the model numbers. Some of the older, non-functional ones were used for troubleshooting practice, because they had good service manuals and very neatly laid out internal wiring, with everything on terminal strips. I remember the CRT wiring was the opposite of normal television practice, with the anode at ground potential and the cathode and filament at a highly negative voltage. At one time I owned a Tektronix RM-503, a rack-mount beast that contained about thirty vacuum tubes. It was not very accurate by the time I got my hands on it, having been last calibrated some time in the 1960s, but I used it with an 'octopus' made from an old power supply transformer to test semiconductors.
