Max, sounds good shipping international is an expensive option. I got my numbers from the USPS web site so they should be fairly good. FedEx and the others are just short of obscene. I have

Thank you Stephen, I appreciate your effort. I'm really wondering for the shipping cost. Courier service, FedEx or US Mail? Anyway, digging into details of horizontal driver IC (MC1391) I found

John, Just like eating an elephant, one bite at a time. I've uncovered some other problems, but they are for a later date. They don't make the instrument unusable. I will be getting into those

I ordered 4 MC1456P Motorola IC's, when they come in I will install them and come back here with the results. I would like to thank this valuable community group for directing me to UT Source

Just in case the original title didn't register with anyone..... I have a 20cm semi-rigid cable for 7S12 TDR applications. I have just bought it and it appears to be in original perfect unused

UPDATE On the main board there are 3 DIP 8 IC's (U530 and U520 for the vertical and U570 to horizontal) that are all MC1456N. Realizing I had 3 of each and I seem to experience display interference

Max, I've looked in my box and found several Sweep PCAs. They are all 671-1271 with suffixes of 01, 02, 06. Since these all came out of 540 and 540A scopes I'd suspect that the sweep PCA is fairly

Great adventure so far Michael. Can't wait for the ending. John Justin

Michael (and anyone else who wants to improve Tekwiki), Email me and I will make an account for you. The email address is at the bottom of the top-level main page:

Kurt, This is what I see under "Repairs" for the 576: "576/Repairs" "There is currently no text in this page. You can search for this page title in other pages, or search the related logs, but you

Kurt, I certainly can write something up and place it there as well. Just was not sure the best or accepted method of doing this. Appreciate the instruction. Thanks! -- Michael Lynch Dardanelle,

Every instrument page on Tekwiki has a "Repairs" page associated with it. The link is near the upper left of the page. The intention is to provide a place for people to document repairs, maintenance

Glen, Tom said that I definitely should share my repair. Which I thought was the right thing to do, but was not sure of using bandwidth or space for such a post. I have posted my finding above, If

What did Tom recommend? Glenn -- ----------------------------------------------------------------------- Glenn Little ARRL Technical Specialist QCWA LM 28417 Amateur Callsign:

Tom, Yes, and that is what I have done. I do not take any of the help that I have received for granted! It is much appreciated. Being a novice at this, I need all the help that I can

All: Continued from previous posts. So, after I found that I still had issues, I started checking all the other electrolytic caps on the power supply board (several others appear to have been

Craig, That is an awesome way to get one of these. I feel like I almost hit the jackpot when my Flea-Bay bid won at $255. Mine looked great and even had a bright "spot" that showed in the pictures,

Hello Micheal, You have gotten quite a bit of help from the Tekscopes group on your various projects, so a nice summary of your 576 repair would seem like the proper thing to do. The Tekscopes message

Michael, Congratulations on your 576 fix. I own one myself (purchased 15 yrs ago) and used one back in engineering school some 50 years ago. Great machine - mine still works perfectly! Please, I'd be

I can beat that. I paid precisely nothing for mine, or for a spares unit that is just missing the CRT. Mind you, before I got the spares unit, I had to rewind the HT transformer in the free one to