🚀 go-pugleaf

Since I was a pilot teacher for the 7th edition of PSSC, it was nice to
come across a question concerning it on PHYSHARE!

Both methods are described in the 7th edition, but if you have the tuning
eye tubes, I would heartily recommend them over the CRT setup for two
reasons - price (the CRT "Mass of the Electron" apparatus price is
outrageous!) and the fact that students can better see what is happening
with the tuning eye.  As a matter of fact, the main reason that the CRT
writeup was included at all was that the authors had determined that the
tuning eye tubes (6AF6G) were no longer available.

I am not familiar with a 2BP1 tube.  Is that the CRT?  If it is, the
distance from the second set of deflecting plates to the tube face is 6.4
centimeters.

On Wed, 27 Jul 1994, Charles W. Robertson wrote:

> I'm looking for a copy of the write up for the e/m experiment
> described in the 5th edition of the PSSC lab guide.  I can't get
> one from DC Heath, and was given the impression that in the
> 7th edition, the e/m experiment uses the tuning eye tubes and
> not the crt's.
> Is that right, or is the "crt" method described in the 7th edition?
> ..
> Can anybody tell me what the drift distance in a 2BP1 tube is?
> Is that information included in the write up?
> Thanks
> C.W. Robertson
> WSU Physics Box 32
> Wichita, Ks 67260
> robertso@twsuvm.bitnet
>
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> From: ROBERTSO%TWSUVM.BITNET@conrad.appstate.edu
> Subject: Questions about PSSC 5th edition mass of the electron
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> I'm looking for a copy of the write up for the e/m experiment
> described in the 5th edition of the PSSC lab guide.  I can't get
> one from DC Heath, and was given the impression that in the
> 7th edition, the e/m experiment uses the tuning eye tubes and
> not the crt's.
> Is that right, or is the "crt" method described in the 7th edition?
> ..
> Can anybody tell me what the drift distance in a 2BP1 tube is?
> Is that information included in the write up?
> Thanks
> C.W. Robertson
> WSU Physics Box 32
> Wichita, Ks 67260
> robertso@twsuvm.bitnet
>