Picture?

Ilan: BRAVO for your work and persistence! A few tips: Avoid using external power in debugging, easy to have safety or do damage. Suggest Do NOT replace all capacitors, can do damage in desolder

Just DL the complete book in PDF at this site; https://archive.org/details/keller1991cathode-ray/mode/2up It´s opensource so free for everyone :-) René

[in case you cant see any of the previous posts in this thread, here is a recap https://groups.io/g/TekScopes/message/139381 ] Hey gang, it's been 3 years and I am currently studying for an

Of course range filters are coated... coated with cooking grease. The entire purpose of the aluminum style range filters is to capture the grease from cooking, and keep it stuck to the filter and out

hi, Wondering how to identify a Tek terminal that is missing both front & back ID decals. The CRT screen seems small, so perhaps 11" on the diagonal. Sort of looks like the 4012, without the

Thanks very much! > > >

I think we need to be certain which pots we are considering. Are they pots on the front panel, or are they internal adjustments (trimmers) and perhaps which are they specifically? Circuit identities

Thanks, John. It looks like the file names got modified a little bit between the time tekwiki linked to them and now. -- Cheers, Tom -- Prof. Thomas H. Lee Allen Ctr., Rm. 205 350 Jane Stanford

The link to all parts is https://vintagetek.org/tektronix-crt-history/

Thanks for the link! But looks like parts 1, 2, 3 and 5 are missing? Tektronix also published "Storage Cathode-Ray Tubes and Circuits" and "Cathode-Ray Tubes" (Chuck DeVere and Bob Orwiler) in their

Yes... at least here in the colonies...Al range hood filter material is the samesimilar Al material that was used in the 500 filters (I think it has been mentioned earlier... or in another

Those who are interested in learning more about the amazing technology of scope CRTs might want to read Pete Keller's terrific book on the subject. See http://w140.com/tekwiki/wiki/Peter_Keller And

Hey Chuck, Why am I not surprised that you went and measured this :). I agree that the capacitance of the lenses is pretty insignificant (by 3 orders of magnitude) compared to the bypass cap. It's

We had an electrostatic air cleaner on our HVAC system that used expanded aluminum filters. Or how about the same type of filter that is used in a range hood?

I've cleaned the oldest dirtiest (I mean dirty!) original (or as they came with) series 500 Al mesh filters. I never, when I can get them, throw the filters away... I just simply clean them. I don't

Helitrim pots cheap? Do you have a source? Thanks! Enviado do meu Tele-Movel Em qui, 15 de out de 2020 13:40, Stephen Hanselman <kc4sw.io@...> escreveu:

I have a problem with X-Y mode not working on my 468 scope. The spot it hard left and beamfinder is required to show it. Other running traces are absolutely fine. I had another discussion open for the

Hi Siggi, If you measure QP1 across its elements (12,5), you get 33.7pf. If you measure QP2 across its elements, (13.6) you get 25.6pf. Compared to the 0.022uf filter, that is pretty

Ooops sorry I read pots to mean trim pots. Still if you can replace them they will never be as stable after cleaning as new. Regards, Stephen Hanselman Datagate Systems, LLC