Lucky catch

[steenoe]

I just had to boast a little about this lucky catch. All the stuff on the pic was on the way from the company that I work for, to the scrap-container! Thanks to a friend of mine, we had the stuff redirected to my garage.
Maybe you would like to know that the company has nearly 3000 ppl. and is a quite big area. A lot of stuff like that, doesnt get thrown out from a small company, all of a sudden.
Anyway, on the pic is from left; a sweep function generator, Phillips frequency counter, Phillips table DMM. In the middle Tektronix scope with dual trace, differential and timebase amps. Next a Phillips lab supply and a bunch of Bruel & Kjaer instruments. In the background, more B&K instruments with a couple of large spools of magnetwire (Nice, considering the Cu prices) Another reason for starting this thread is the B&K instruments! Some of them has names that I didnt even know excisted so I will probably have some questions that I hope some of you guys can help answering
All the measuring devices are apparently in working order, as far as they have been turned on.

[steenoe]

More B&K instruments. The components seems to be first class stuff, judging from the boxes I took a look inside. The instrument boxes are easy to access. Only a single screw holds each of the top, bottom and side panels. Really convenient.

[steenoe]

First question: what is a ramp generator and what is the use? I think I heard the "Ramp" word before, but cant really connect it to something usefull! Sorry 'bout the beer.

[steenoe]

Question number two: piezoresistive amp?? What is that? Anyone?

[Zen Mod]

Originally posted by steenoe
Question number two: piezoresistive amp?? What is that? Anyone?

lucky (bstrd) luke

amp for piezoresistive element - usually used as weight sensor

[Vix]

Steen,

I am sure that most of us can help you to properly get rid of that stuff!!

[clm811]

what is a ramp generator and what is the use?

A "ramp" (waveform) generator is a signal generator which produces a "ramp-like" voltage (like one or more cycles of a sawtooth wave*), the amplitude of which increases(or decreases) in a linear fashion over time.

*http://en.wikipedia.org/wiki/Sawtooth_wave

The ramp waveform is used for, IIRC, controlling sweeps in another instrument (e.g. an interferometer).

You really lucked out, for sure. I hope you can make good use of your treasures.

-Chas

[Zen Mod]

is there any tube in that pile o' drek ?

[c2cthomas]

Originally posted by steenoe
First question: what is a ramp generator and what is the use? I think I heard the "Ramp" word before, but cant really connect it to something usefull! Sorry 'bout the beer.

Originally posted by Zen Mod


is there any tube in that pile o' drek ?

Don't see any tubes - but get a load of the two big-asss spools of magnet wire!!! 1st photo - top left corner.

[steenoe]

Thanks a lot for useful info You guys are a treasure. I guess that it was an extremely lucky catch, indeed.
There is some tubes also, I have no idea if any of them are good for audio. The big ones are EL 36 and PL 508. The small and new ones in boxes are EF91, ECH81, EAA91, EC97, PC97, UCC85, PCC85. There might be some other types in the pile of loose tubes. I will try and make a list. Any chance that some of them are worth using? Could be fun building something with them.